Viagra vs Cialis. Which is better and why?

Posted by tolik008 on Сентябрь 17, 2011
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Viagra vs Cialis. Which is better and why?

A little history

Viagra was the first on to the market in 1998 and it proved that the use of a PDE5 inhibitor was the most effective treatment for ED. Other manufacturers wanted a similar product but Viagra was protected by its patents. Pfizer had a monopoly on that particular chemistry. Two other manufacturers therefore began the work of producing a different version of the chemistry that would have the same effect. Both came out on to the market in 2003. At first, their progress was slow. Viagra maintained its market dominance. But Cialis has been steadily catching up. In some foreign markets, it has overtaken Viagra as the top selling ED drug.
Competition is good for the consumer

So long as there’s only one effective drug on the market, the manufacturer can set a high price. This is good for society because the manufacturer recovers the research and development costs quickly and can invest in trying to find new drugs. But the individual consumers suffer until competition arrives and drives down the price. Viagra is therefore squeezed on two fronts. In the US market, there are two competitors who offer comparable quality at lower prices. From the internet, a small army of online pharmacies sell the branded and generic Viagra from the lower cost markets around the world.
So what is the difference?

Although Viagra and Cialis work on the body in the same way, the effect is slightly different. As you may know, Cialis has earned the nickname of the «weekend pill». This reflects the surprising difference in time. Viagra allows erections to form for up to about five hours. Thereafter, sexual performance falls away quickly. But Cialis allows erections to form as needed for up to 36 hours. So, if you took a pill on Friday evening, you could still be sexually active on that pill on Sunday morning. This might look a big advantage except for the pricing. The branded Cialis is always more expensive per pill than Viagra so now the choice comes down to convenience. You can take two Viagra pills on successive days and get the same effect as Cialis for roughly the same cost. Or you can take one Cialis and have responsiveness for longer. If you are into one-night stands, Viagra is better value. If you really can take your partner away for the weekend, you buy whichever drug you feel is most comfortable. The price will work out about the same.

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Buy Viagra consumer information

Viagra is a medication used for treating erectile dysfunction of various degrees in men. It was the very first drug approved for this purpose by the FDA in 1998. Since then it was used by millions of men all over the world and confirmed to be really effective for overcoming male impotence.

Viagra can be taken by virtually anyone who doesn’t have serious heart problems, vision or hearing problems, liver or kidney disease, bleeding disorders, or medical restrictions concerning sexual activity. Viagra is a prescription drug and you always have to discuss its use with your doctor in order to get the right dosage of the drug and know how to use it. Make sure to inform your physician about any medications or substances that you use on a regular basis in order to avoid drug interactions and negative side effects.

Viagra is to be taken orally only when needed. You don’t have to take it every day to get the effects of the drug. Just take a single pill of the prescribed dosage in 30 minutes before engaging into sexual activity and you will feel the beneficial effects of the drug. The pill can be taken with and without food, although it is recommended to avoid fatty meals as such food may affect the absorption of the drug in the stomach. Alcohol should also be avoided since it raises the risk of experiencing adverse effects.

Many people think that Viagra is somewhat like an aphrodisiac and will cause an automatic erection after the drug has been taken. Such a belief is erroneous. Viagra will only take effect after the person was sexually aroused. If there’s no sexual stimulation or the person has low libido Viagra won’t have much of an effect. It simply helps with obtaining an erection just like in normal circumstances only that the erection is durable and prolonged in contrast to usual problems typical for erectile dysfunction.

Make sure to respect all the recommendations indicated in the prescription label by your doctor. Do not alter the dosage or take the drug more than once in 24 hours. If there are any side effects after taking the drug make sure to inform your doctor as soon as possible. Let the professional handle all the problems otherwise you risk making things worse. Viagra is only effective if you use it right so make sure to use it exactly as required in your case.

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Top Generic Viagra Sellers

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Top Generic Viagra Sellers

Other top sellers include other ED medications that are commonly associated with Generic Viagra, such as caverta, sildenafil soft tabs and the aforementioned oral jellies. Caverta is a form of Generic Viagra that also comes in the form of traditional tablets. The high quality and the cheap price of these tablets makes them one of our top sellers. Buy this cheap Generic Viagra from XL online pharmacy in the dose of 100mg strength. Produced by health care professionals, Caverta is an effective prime Generic Viagra medication that treats male impotence just as proficiently as any other erectile dysfunction product. Caverta helps men with impotence problems to achieve and maintain a healthy sexual life.

The soft tabs and oral jellies, on the other hand, offer an innovative way of administrating Generic Viagra that sees them being placed under the patient’s tongue, where they quickly dissolve and enter the bloodstream in only fifteen to twenty minutes, with a lasting effect that ranges from 24 to 26 hours. Furthermore, the Oral Jellies come in different flavors such as: Pineapple, Orange, Strawberry, Vanilla, Banana, Blackcurrant and Butterscotch, while the soft tabs’ flavors include Mint, Lemon, Strawberry and Banana. Other than flavor and presentation though, they share the high quality that distinguishes Generic Viagra with sildenafil citrate.

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ildenafil Citrate (Generic Viagra) belongs to a group of medicines that delay the enzymes called phosphodiesterases from working too quickly. Sildenafil Citrate is used to treat men who have erectile dysfunction (also called sexual impotence).

If you want to buy cheap generic Viagra online without a prescription for a low price. Then Australia, Europe, USA, Canada or India and even Hong Kong stores are a place where an original pill can be found. However certain online shops can also deliver a great quality original product even with free sampling. The effects of a generic 100mg sildenafil citrate pill is the same as the renown Brand Viagra from Pfizer. However at your local pharmacy the price is certainly much higher then online. The pills may be purhcased at low costs with the use of mastercard, visa, amex, discovery and other credit or debit cards. The shipping is a big issue, when buying online or over the phone from and online site. Different methods of shipping exist for delivery of 25mg, 50mg and 100mg pills, which include overnight shipping, fast 5 day mail delivery and etc. Please understand, that Viagra is not an over the counter drug as it needs a prescription to be bought in your local pharmacy, however online services allow to buy the super drug and even so called professional forms of the drug without having any legal issues. The brands, which are present in an online pharmacy include Aurochem, Vipro, real Pfizer and many others. The blue pill comes in different forms like soft tablets, chewable pills, tablets, capsules and etc. Generic Viagra is an alternative, to world renown Brand Viagra, it costs a lot less, because it is manufactured in India, where labor costs are really low, secondly it is completely legal to manufacture it there and lastly the companies producing it do not have to pay for the clinical trials. The pill also available on the world wide market for wholesale purchases. But beware of fraud, when you purchase the drug on the Internet websites. It is illegal to perform fraudulent actions, however as the demand for the pill is very high, some not reliable pharmacies try to sell their fake tablets. Thus be careful do not fall into a scam and choose the source for your sildenafil carefully. Over versions of the blue pill exist on the market except the generic ones and one of them is Kamagra.

Erectile dysfunction, which had been believed to be a problem nearly 20 years ago is successfully resolved now. Before the blue pill was invented many herbal preparations had been used to treat ED, amongst them even watermelons. But of course a need in a real medicine to treat the disorder had been needed. Many people who had tried Viagra had success in resolving ED. Erection is a natural process, which is triggered by excitement, when a person feels that sex will take place soon.

Viagra Professional Pills

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Viagra Professional Pills

Viagra Professional is the latest Erectile dysfunction medication that is touted to be the strongest impotence drug. Its a relatively new medication and there is lot of curiosity associated with this medication and if it is indeed the ultimate pill to treat erectile dysfunction. We will present you some honest and accurate information pertaining to Viagra Professional pills.

 

 

 

Viagra Professional Facts

Viagra Professional pills are widely advertised as the stronger version of Viagra. They are manufactured primarily by pharmaceutical giants like Cipla and Ranbaxy who use the relaxed patent norms in India to manufacture the stronger version of Viagra. Most of the Generic variants of Viagra contain the same major ingredient Sildenafil Citrate found in Pfizer’s Viagra. Since the manufacturers don’t spend millions in advertisements and have not spent millions in the initial research of Sildenfil Citrate(Viagra ingredient), they are able to sell Generic Viagra(with the same ingredients) and Viagra Professional at good prices.

Viagra professional is known to be stronger, more potent and is known to work in more difficult cases of Erectile Dysfunction. Additionally with Pfizer’s patent set to expire soon, Generic Viagra and Viagra Professional could be openly manufactured not just by top pharmaceutical manufacturers in India, but all over the world too.

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Erectile Dysfunction Causes and Treatments
Almost all men undergo some form of ED at some point of time or the other. However if this is a regular phenomenon then it is a symptom of Erectile Dysfunction or ED. ED can be caused by extended exposure to somatic disorders like diabetes, high BP, high cholesterol etc.  Excessive Smoking and alcohol can also contribute towards ED. Then there are those who have psychogenic ED that is induced psychologically and this might need counseling. Treating the underlying causes can in many cases improve erectile function.  PDE inhibitor pills like Viagra, Cialis and Levitra work very well too.

How Viagra works – Doctor’s Opinion

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Viagra Professional Pills

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The commercial name of the medication may differ from the brand one. Viagra professional manufactured by RSM Enterprise is available under commercial name Sildigra Prof.

How does Viagra professional work and what pharmaceutical group does it belong to?

Sildenafil citrate is a reversible PDE-5 inhibitor. The preparation works by increasing blood flow to the corpus cavernosum of the penis thus allowing the patient to achieve and maintain a normal erection. Viagra professional contains the same active ingredients as Viagra, however due to unique properties of the pharmaceutical form the effects are longer then in the genuine preparation.

Which conditions are treated with Sildenafil?

The preparation is normally used in treatment of erectile dysfunction in men.

What should a patient know before using Viagra professional?

The Sildenafil should not be used in cases of:

  • Hypersensitivity to any components of the preparation
  • Cardiovascular disorders
  • Liver and renal problems
  • Blood affecting disorders
  • Stomach ulcers
  • Uncontrolled hypertension
  • Retinitis pigmentosa
  • Physical deformation of the penis

Which adverse effects may manifest when using the medication?

The side effects of Viagra professional include:

  • Headache
  • Nasal congestion
  • Flushing
  • Visual disturbance
  • Gastrointestinal disturbances
  • Sudden vision loss
  • Arrhythmia
  • Labored breathing
  • Priapism
  • Fainting
  • Chest pain and etc.

It is not necessary that the side effects will manifest in an individual but the possibility still exist. For more information please consult your health care provider.

Which groups of drugs or specific preparations may interact with Sildenafil?

The drug is affected by the following:

  • HIV treatment
  • Antidepressants
  • Nitrates
  • Antibiotics
  • Hypertension treatment
  • NSASID’s

Tell your doctor about all the herbal preparations as well as prescription drugs that you are currently taking even if they are not on the list.

Important information for the patient: Viagra professional is supplied for individual use. Do not use it to treat other conditions not listed in the leaflet. Keep the product out of children reach. Do not reuse any disposable materials if supplied with the preparation.

 

 

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Remember:

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  2. If you are young then there is not any need to take Viagra!
  3. 50 mg Viagra is the recommended dose.
  4. 100 mg is the maximum dose for brand name.
  5. Before taking Viagra, don’t drink grapefruit juice! This reduces the effect of Viagra.

 

Common use
Sildenafil Citrate affects the response to sexual stimulation. It acts by enhancing smooth muscle relaxation using nitric oxide, a chemical that is normally released in response to sexual stimulation. This smooth muscle relaxation allows increased blood flow into certain areas of the penis, which leads to an erection.
Sildenafil Citrate is applied for the treatment of erectile dysfunction (impotence) in men and pulmonary arterial hypertension.
Sildenafil Citrate may also be used for other purposes not listed above.

Dosage and direction
Usually the recommended dose is 50 mg. It is taken approximately 0,5-1 hour before sexual activity. Do not take Viagra more then once a day.
A high fat meal may delay the time of the effect of this drug.
Try not to eat grapefruit or drink grapefruit juice while you are being treated with Sildenafil Citrate.

Precautions
Before you start taking Sildenafil Citrate, tell your doctor or pharmacist if you are allergic to it; or if you have any other allergies.
Aged people may be more sensitive to the side effects of the drug.

Contraindications
Viagra is contraindicated in patients taking another medicine to treat impotence or using a nitrate drug for chest pain or heart problems.
This medicine should not be taken by women and children as well as in patients with a known hypersensitivity to any component of the tablet.

Possible side effect
The most common side effects are headache, flushing, heartburn, stomach upset, nasal stuffiness, lightheadedness, dizziness or diarrhea.
A serious allergic reaction to this drug is very rare, but seek immediate medical help if it occurs.
Many people using this medicine do not have serious side effects.
In case you notice any side effects not listed above, contact your doctor or pharmacist.

Drug interaction
This drug should not be used with nitrates and recreational drugs called «poppers» containing amyl or butyl nitrite; alpha-blocker medications; other medications for impotence; high blood pressure medicines, etc.
Consult your doctor or pharmacist for more details.

Missed dose
Viagra is used as needed, so you are unlikely to be on a dosing schedule.

Overdose
If you think you have used too much of this medicine seek emergency medical attention right away. The symptoms of overdose usually include chest pain, nausea, irregular heartbeat, and feeling light-headed or fainting.

Storage
Store your medicines at room temperature between 68-77 degrees F (20-25 degrees C) away from light and moisture. Do not store the drugs in the bathroom. Keep all drugs away from reach of children and pets.

Disclaimer
We provide only general information about medications which does not cover all directions, possible drug integrations, or precautions. Information at the site cannot be used for self-treatment and self-diagnosis. Any specific instructions for a particular patient should be agreed with your health care adviser or doctor in charge of the case. We disclaim reliability of this information and mistakes it could contain. We are not responsible for any direct, indirect, special or other indirect damage as a result of any use of the information on this site and also for consequences of self-treatment.

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What is this medicine?

SILDENAFIL CITRATE is used to treat erection problems in men. CavertaВ® is produced by Ranbaxy — one of world’s leading pharmacutical companies.

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What should I tell my health care provider before I take this medicine?

They need to know if you have any of these conditions:

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How should I take this medicine?

Take this medicine by mouth with a glass of water. The dose is usually taken 1 hour before sexual activity. You should not take the dose more than once per day. Do not take your medicine more often than directed.

Overdosage: If you think you have taken too much of this medicine contact a poison control center or emergency room at once.

NOTE: This medicine is only for you. Do not share this medicine with others.

What may interact with this medicine?

Do not take this medicine with any of the following:

  • cisapride
  • methscopolamine nitrate
  • nitrates like amyl nitrite, isosorbide dinitrate, isosorbide mononitrate, nitroglycerin
  • nitroprusside
  • other sildenafil products (Viagra, Revatio, Suhagra, etc.)

This medicine may also interact with the following:

  • certain drugs for high blood pressure
  • certain drugs for the treatment of HIV infection or AIDS
  • certain drugs used for fungal or yeast infections, like fluconazole, itraconazole, ketoconazole, and voriconazole
  • cimetidine
  • erythromycin

This list may not describe all possible interactions. Give your health care providers a list of all the medicines, herbs, non-prescription drugs, or dietary supplements you use. Also tell them if you smoke, drink alcohol, or use illegal drugs. Some items may interact with your medicine.

What should I watch for while taking this medicine?

If you notice any changes in your vision while taking this drug, call your doctor or health care professional as soon as possible.

Call your health care provider right away if you have any change in vision.

Contact you doctor or health care professional right away if the erection lasts longer than 4 hours or if it becomes painful. This may be a sign of a serious problem and must be treated right away to prevent permanent damage.

If you experience symptoms of nausea, dizziness, chest pain or arm pain upon initiation of sexual activity after taking this medicine, you should refrain from further activity and call your doctor or health care professional as soon as possible.

Using this medicine does not protect you or your partner against HIV infection (the virus that causes AIDS) or other sexually transmitted diseases.

What side effects may I notice from this medicine?

Side effects that you should report to your doctor or health care professional as soon as possible:

  • allergic reactions like skin rash, itching or hives, swelling of the face, lips, or tongue
  • breathing problems
  • changes in hearing
  • changes in vision, blurred vision, trouble telling blue from green color
  • chest pain
  • fast, irregular heartbeat
  • men: prolonged or painful erection (lasting more than 4 hours)
  • seizures

Side effects that usually do not require medical attention (report to your doctor or health care professional if they continue or are bothersome):

  • diarrhea
  • flushing
  • headache
  • indigestion
  • stuffy or runny nose

This list may not describe all possible side effects. Call your doctor for medical advice about side effects.

Where can I keep my medicine?

Keep out of reach of children.

Store at room temperature between 15 and 30 degrees C (59 and 86 degrees F). Throw away any unused medicine after the expiration date.

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Sildenafil (Viagra) is used to treat erectile dysfunction (impotence; inability to get or keep an erection) in men. Sildenafil (Revatio) is used to improve the ability to exercise in people with pulmonary arterial hypertension (PAH; high blood pressure in the vessels carrying blood to the lungs, causing shortness of breath, dizziness, and tiredness). Sildenafil is in a class of medications called phosphodiesterase (PDE) inhibitors. Sildenafil treats erectile dysfunction by increasing blood flow to the penis during sexual stimulation. This increased blood flow can cause an erection. Sildenafil treats PAH by relaxing the blood vessels in the lungs to allow blood to flow easily.

If you are taking sildenafil to treat erectile dysfunction, you should know that it does not cure erectile dysfunction or increase sexual desire. Sildenafil does not prevent pregnancy or the spread of sexually transmitted diseases such as human immunodeficiency virus (HIV).

How should this medicine be used?

Sildenafil comes as a tablet to take by mouth.

If you are taking sildenafil to treat erectile dysfunction, follow your doctor’s directions and the guidelines in this paragraph. Take sildenafil as needed before sexual activity. The best time to take sildenafil is about 1 hour before sexual activity, but you can take the medication any time from 4 hours to 30 minutes before sexual activity. Sildenafil usually should not be taken more than once every 24 hours. If you have certain health conditions or are taking certain medications, your doctor may tell you to take sildenafil less often. You can take sildenafil with or without food. However, if you take sildenafil with a high-fat meal, it will take longer for the medication to start to work.

If you are taking sildenafil to treat PAH, follow your doctor’s directions and the guidelines in this paragraph. You will probably take sildenafil three times a day with or without food. Take sildenafil at around the same times every day, and space your doses about 4 to 6 hours apart.

Follow the directions on your prescription label carefully, and ask your doctor or pharmacist to explain any part you do not understand. Take sildenafil exactly as directed. Do not take more or less of it or take it more often than prescribed by your doctor.

If you are taking sildenafil for erectile dysfunction, your doctor will probably start you on an average dose of sildenafil and increase or decrease your dose depending on your response to the medication. Tell your doctor if sildenafil is not working well or if you are experiencing side effects.

If you are taking sildenafil for PAH, you should know that sildenafil controls PAH but does not cure it. Continue to take sildenafil even if you feel well. Do not stop taking sildenafil without talking to your doctor.

Ask your pharmacist or doctor for a copy of the manufacturer’s information for the patient.

Other uses for this medicine

This medication is sometimes prescribed for other uses; ask your doctor or pharmacist for more information.

What special precautions should I follow?

 

  • tell your doctor and pharmacist if you are allergic to sildenafil or any other medications.
  • do not take sildenafil if you are taking or have recently taken nitrates (medications for chest pain) such as isosorbide dinitrate (Isordil), isosorbide mononitrate (Imdur, ISMO), and nitroglycerin (Nitro-BID, Nitro-Dur, Nitroquick, Nitrostat, others). Nitrates come as tablets, sublingual (under the tongue) tablets, sprays, patches, pastes, and ointments. Ask your doctor if you are not sure whether any of your medications contain nitrates.
  • do not take street drugs containing nitrates such as amyl nitrate and butyl nitrate (‘poppers’) while taking sildenafil.
  • tell your doctor and pharmacist what prescription and nonprescription medications, vitamins, and nutritional supplements you are taking or plan to take. Be sure to mention any of the following: alpha blockers such as alfuzosin (Uroxatral), doxazosin (Cardura), prazosin (Minipress), tamsulosin (Flomax), and terazosin (Hytrin); amlodipine (Norvasc); certain antifungals such as itraconazole (Sporanox) and ketoconazole (Nizoral); anticoagulants (‘blood thinners’) such as warfarin (Coumadin); certain barbiturates such as butalbital (in Esgic-Plus, in Fioricet, in Fiorinal, others) and secobarbital (Seconal); beta blockers such as atenolol (Tenormin), labetalol (Normodyne), metoprolol (Lopressor, Toprol XL), nadolol (Corgard), and propranolol (Inderal); bosentan (Tracleer); cimetidine (Tagamet);efavirenz (Sustiva); erythromycin (E.E.S., E-Mycin, Erythrocin); HIV protease inhibitors including amprenavir (Agenerase), atazanavir (Reyataz), darunavir (Prezista), fosamprenavir (Lexiva), indinavir (Crixivan), lopinavir (in Kaletra), nelfinavir (Viracept), ritonavir (Norvir, in Kaletra), saquinavir (Fortovase, Invirase), and tipranavir (Aptivus); nevirapine (Viramune); other medications or devices to treat erectile dysfunction;medications for high blood pressure; certain medications for seizures including carbamazepine (Carbatrol, Epitol, Tegretol), phenobarbital, and phenytoin (Dilantin, Phenytek); rifabutin (Mycobutin); and rifampin (Rifadin, Rimactane). Your doctor may need to change the doses of your medications or monitor you carefully for side effects. Many other medications may also interact with sildenafil, so be sure to tell your doctor about all the medications you are taking, even those that do not appear on this list.
  • tell your doctor what herbal products you are taking or plan to take, especially St. John’s wort.
  • tell your doctor if you smoke, if you have ever had an erection that lasted for several hours, and if you have recently lost a large amount of body fluids (dehydration). This can happen if you are sick with fever, diarrhea, or vomiting; sweat a lot; or do not drink enough liquids. Also tell your doctor if you have or have ever had pulmonary veno-occlusive disease (PVOD; blockage of veins in the lungs); a stomach ulcer; heart, kidney, or liver disease; a heart attack; an irregular heartbeat; a stroke; chest pain; high or low blood pressure; high cholesterol; a bleeding disorder; blood circulation problems;blood cell problems such as sickle cell anemia (a disease of the red blood cells), multiple myeloma (cancer of the plasma cells), or leukemia (cancer of the white blood cells); conditions affecting the shape of the penis (e.g., angulation, cavernosal fibrosis, or Peyronie’s disease); or diabetes. Also tell your doctor if you or any of your family members have or have ever had an eye disease such as retinitis pigmentosa (an inherited eye condition that causes loss of vision) or if you have ever had sudden severe vision loss, especially if you were told that the vision loss was caused by a blockage of blood flow to the nerves that help you see.
  • tell your doctor if you are pregnant, plan to become pregnant, or are breast-feeding. If you become pregnant while taking sildenafil, call your doctor.
  • if you are having surgery, including dental surgery, tell your doctor or dentist that you are taking sildenafil.
  • if you are taking sildenafil to treat erectile dysfunction, tell your doctor if you have ever been advised by a health care professional to avoid sexual activity for medical reasons or if you have ever experienced chest pain during sexual activity. Sexual activity may be a strain on your heart, especially if you have heart disease. If you experience chest pain, dizziness, or nausea during sexual activity, call your doctor immediately and avoid sexual activity until your doctor tells you otherwise.
  • tell all your health care providers that you are taking sildenafil. If you ever need emergency medical treatment for a heart problem, the health care providers who treat you will need to know when you last took sildenafil.

What special dietary instructions should I follow?

Talk to your doctor about eating grapefruit and drinking grapefruit juice while taking this medicine.

What should I do if I forget a dose?

If you are taking sildenafil for erectile dysfunction, you are unlikely to miss a dose since this medication is taken as needed, not on a regular dosing schedule.

If you are taking sildenafil for PAH, take the missed dose as soon as you remember it. However, if it is almost time for the next dose, skip the missed dose and continue your regular dosing schedule. Do not take a double dose to make up for a missed one.

What side effects can this medication cause?

Sildenafil may cause side effects. Tell your doctor if any of these symptoms are severe or do not go away:

  • headache
  • heartburn
  • diarrhea
  • flushing (feeling of warmth)
  • nosebleeds
  • difficulty falling asleep or staying asleep
  • numbness, burning, or tingling in the arms, hands, feet, or legs
  • muscle aches
  • changes in color vision (seeing a blue tinge on objects or having difficulty telling the difference between blue and green)
  • sensitivity to light

Some side effects can be serious. If you experience any of the following symptoms, call your doctor immediately:

  • sudden severe loss of vision (see below for more information)
  • blurred vision
  • sudden decrease or loss of hearing
  • ringing in ears
  • erection that is painful or lasts longer than 4 hours
  • dizziness or lightheadedness
  • fainting
  • chest pain
  • worsening shortness of breath
  • itching or burning during urination
  • rash

Some patients experienced a sudden loss of some or all of their vision after they took sildenafil or other medications that are similar to sildenafil. The vision loss was permanent in some cases. It is not known if the vision loss was caused by the medication. If you experience a sudden loss of vision while you are taking sildenafil, call your doctor immediately. Do not take any more doses of sildenafil or similar medications such as tadalafil (Cialis) or vardenafil (Levitra) until you talk to your doctor.

There have been reports of heart attack, stroke, irregular heartbeat, bleeding in the brain or lungs, high blood pressure, and sudden death in men who took sildenafil for erectile dysfunction. Most, but not all, of these people had heart problems before taking sildenafil. It is not known whether these events were caused by sildenafil, sexual activity, heart disease, or a combination of these and other causes.Talk to your doctor about the risks of taking sildenafil.

Some patients experienced a sudden decrease or loss of hearing after they took sildenafil or other medications that are similar to sildenafil. The hearing loss usually involved only one ear and may not get better. It is not known if the hearing loss was caused by the medication. If you experience a sudden loss of hearing, sometimes with ringing in the ears or dizziness, while you are taking sildenafil, call your doctor immediately. If you are taking sildenafil (Viagra) for erectile dysfunction, do not take any more doses of sildenafil (Viagra) or similar medications such as tadalafil (Cialis) or vardenafil (Levitra) until you talk to your doctor. If you are taking sildenafil (Revatio) for PAH, do not stop taking your medication until you talk to your doctor.

Sildenafil may cause other side effects. Call your doctor if you have any unusual problems while you are taking this medication.

If you experience a serious side effect, you or your doctor may send a report to the Food and Drug Administration’s (FDA) MedWatch Adverse Event Reporting program online [at http://www.fda.gov/Safety/MedWatch] or by phone [1-800-332-1088].

What storage conditions are needed for this medicine?

Keep this medication in the container it came in, tightly closed, and out of reach of children. Store it at room temperature and away from excess heat and moisture (not in the bathroom). Throw away any medication that is outdated or no longer needed. Talk to your pharmacist about the proper disposal of your medication.

In case of emergency/overdose

In case of overdose, call your local poison control center at 1-800-222-1222. If the victim has collapsed or is not breathing, call local emergency services at 911.

What other information should I know?

Keep all appointments with your doctor.

Do not let anyone else take your medication. Ask your pharmacist any questions you have about refilling your prescription.

It is important for you to keep a written list of all of the prescription and nonprescription (over-the-counter) medicines you are taking, as well as any products such as vitamins, minerals, or other dietary supplements. You should bring this list with you each time you visit a doctor or if you are admitted to a hospital. It is also important information to carry with you in case of emergencies.

American Society of Health-System Pharmacists, Disclaimer

AHFS® Consumer Medication Information. © Copyright, 2011. The American Society of Health-System Pharmacists, Inc., 7272 Wisconsin Avenue, Bethesda, Maryland. All Rights Reserved. Duplication for commercial use must be authorized by ASHP.