Viagra is one of the most well known prescription drugs used to treat erectile dysfunction, used for over 20 years to help men improve their erections.

It’s important to take the right Viagra dosage for you to make sure you get the best results from it. Let’s explore the difference between Viagra doses, what the recommended starting dose is and how to take Viagra correctly.

How does Viagra work?

All Viagra doses work in the same way. They all contain the active ingredient sildenafil citrate, which is a type of drug called a PDE5 inhibitor. Sildenafil helps relax the blood vessels at the base of your penis, improving blood flow and helping you get harder erections when you’re aroused.

Viagra doses

Viagra comes in three doses: 25 mg, 50 mg and 100 mg. All three are equally effective, but the results get stronger with each dose.

Viagra 25 mg

This is the lowest dose of Viagra available. If you take other prescription medications, you may start with this dosage to avoid drug interactions. You might also find this Viagra dosage has minimal side effects, or none at all. Viagra 25 mg lasts as long as the higher dosage options – four hours after you take it, on average – although the effects can be a little less noticeable.

If this dose doesn’t have the effect you want, speak to your clinical team about whether it’s safe for you to take a higher strength instead.