![]() The first step is to determine and treat the underlying cause of erectile dysfunction, and sildenafil can then be taken on its own or as part of a broader treatment plan. Furthermore, as one ages, many medical conditions that cause ED become more commonplace. It can be the side effect of certain medications, or caused by neurological disorders or psychological factors, but can also be caused by diabetes, being overweight, high blood pressure, or high cholesterol. Men experiencing erectile dysfunction should speak to their doctor to determine the cause. Though specific questions or concerns should always be discussed with a doctor, it never hurts to be informed about any medicine you are thinking of taking. Some men may still be able to achieve a satisfactory erection after 10 hours, although the duration will become shorter.Īfter 24 hours all traces of the drug in the bloodstream has practically gone.Īs soon as a potential patient thinks of taking medicine for erectile dysfunction, these practical questions come into play: Sildenafil has a 4-hour ‘half-life’, meaning half of the drug has left the bloodstream after 4 hours. Most men start to feel the benefit of sildenafil after 27 minutes.Īfter 1 hour, the maximum concentration of the drug is in the bloodstream (this may increase by another hour if food was eaten prior to taking sildenafil). ![]() Some men report achieving an erection as quickly as 12 minutes. The following timeline has been collated from several studies: However several factors will have an effect on how quickly the drug is absorbed and expelled from the bloodstream. The simple answer is usually around 4 hours, with the maximum effect between 30 mins and 2.5 hours after taking – see graph below. One of the most common questions associated with sildenafil (Viagra) and other PDE5 inhibitors is how long does it last? Medications & prices Medications and prices Close.
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