What are the disadvantages of sildenafil?
Sildenafil is the most used remedy for erection problems, but it also has side effects. In this article, you can read what the disadvantages are and how to use the medicine safely. We also discuss psychological dependence and alternatives such as tadalafil.
Having erection problems is nothing to be ashamed of. However, it can be difficult to take the step towards treatment. Sildenafil, the active ingredient in Viagra, is the most used erection pill worldwide. A frequently asked question to the Fellos medical team is what exactly are the disadvantages and side effects of this medication. In this article, you'll read everything you need to know about it.
What are the effects of sildenafil?
Sildenafil is a PDE-5 inhibitor and works by widening the blood vessels in the penis. This makes it easier to get an erection during sexual stimulation. Sildenafil is effective in more than 90% of users. If this is not the case, there is often an underlying medical condition such as arteriosclerosis.
Positive effects of sildenafil
Sildenafil starts working after 30-60 minutes and reaches its optimal effect between one and two hours after ingestion. The effect lasts for about four to six hours. Because sildenafil ensures stronger erections, many men feel more confident during intimate moments.
Possible side effects and disadvantages of sildenafil
As with any medication, side effects can also occur. The most common ones are:
- headaches
- blush (red face)
- upset stomach or heartburn
- nasal congestion
- Vertigo
When sildenafil works out, the symptoms usually also disappear by themselves. D Do you use other medications or do you have heart problems? Then sildenafil may not be suitable for you. One of our doctors will always carefully check whether the medicine is safe in your situation. Via this link you can read the entire package insert.
How often can you use sildenafil?
Sildenafil is an on-demand aid for erection problems. This means that you only take it just before sexual activity. You can only use it once every 24 hours. Excessive use can lead to an increased risk of side effects, and in some cases even cause heart problems in people with underlying conditions. Are you sexually active more often than is tadalafil might be a better option for you. This medication has the same effect as sildenafil but is effective for up to 36 hours. In this article you can read more about the effects and possible disadvantages of tadalafil.
Psychological dependence on sildenafil
Although sildenafil is not physically addictive, a psychological dependency can develop. Some men feel insecure without the drug over time and no longer dare to have sex without taking a tablet. If you do not use sildenafil because you can't physically get an erection, but only for psychological reasons, this is something to take into account. This can be avoided by also having sex regularly without using sildenafil.
Do you have questions or want to know if sildenafil or tadalafil is right for you? Start a free intake with Fellos. You will receive quick and discreet personal advice from one of our doctors.
Fellos hanteert strikte redactionele richtlijnen voor bronnen om de nauwkeurigheid en actualiteit van onze inhoud te waarborgen. Onze inhoud is gebaseerd op wetenschappelijke publicaties, onderzoek van academische instellingen en gerenommeerde medische organisaties. Zie je een fout? Laat het ons weten via [email protected].
Dit artikel is uitsluitend bedoeld voor informatieve doeleinden en vormt geen medisch advies. De informatie hierin is geen vervanging voor professioneel medisch advies en mag hier nooit op worden vertrouwd. Bespreek de risico's en voordelen van elke behandeling altijd met je arts.
Deze content is voor het laatst geüpdatet op
26/1/2026

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