Sildenafil Citrate

When Does It Start Working?

How long a person has to wait for sildenafil citrate to work depends on the individual. In clinical studies, the medication began to work in as little as 14 minutes. For most people, though, it begins working within 30 minutes. Sildenafil citrate can continue to work for at least four hours, but on average, the response decreases after about two hours.

When and How Do I Take It?

Here are some general considerations regarding when and how to take sildenafil citrate:
  • The medication comes in tablet form. It is taken as needed, usually one hour before sexual activity. However, you should not take sildenafil citrate more than once in a day.
  • Take your dose with a glass of water. You may take it with or without food. If you take sildenafil citrate with food, keep in mind that fatty meals may decrease the levels of medication in the blood.
  • For sildenafil citrate to work properly, you have to take it as prescribed. The medication will not work if you stop taking it.

Dosing Information

The dose of sildenafil citrate your healthcare provider recommends will vary, depending on a number of factors, including:
  • Your age
  • Other medical conditions you may have
  • Other medications you may be taking.
As always, do not adjust your dose unless your healthcare provider specifically instructs you to do so.
(Click Dosage of Sildenafil Citrate for more information.)
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