Sildenafil, whether sold generically or under the Viagra brand, is the most famous erectile dysfunction tablet in history — in many ways, it’s responsible for an entire industry. Above all else, that’s an indication of how safe it is to use. Millions of people around the world have used it and ultimately been satisfied with its effects.
But every treatment, no matter how safe, has the potential for side effects. Sildenafil has some mild side effects that are reasonably common, and others that are more serious but occur rarely. On this page, we’ll explain what using Sildenafil is supposed to be like, cover the possible side effects, and make clear how you can use it safely.
Sildenafil functions by helping blood vessels to dilate, improving blood flow and lowering blood pressure (the heart doesn’t need to pump as hard to circulate blood). Once it takes effect (which will generally be within 30 - 60 minutes of taking it), you should feel the increase in blood flow — you might become slightly light-headed or flushed as a result.
Aside from that, using Sildenafil doesn’t provide a particular experience in itself. It’s a facilitator. While it’s in effect (which will be for 4-6 hours at full potency — there’s more detail on our page about how long Sildenafil lasts), you should find it significantly easier to achieve and maintain an erection. If you generally suffer from poor circulation, you may also find it alleviated as a byproduct. Any other positive effects are coincidental — if you feel more aroused, it will likely be due to your thoughts and feelings about your performance (as opposed to the drug itself).
Let’s start with a quick summary of the most common Sildenafil side effects:
Of these, developing a headache is the most common, affecting as many as (or more than) 1 in every 10 users. The others are a little less common, but still somewhat frequent. Note that every one of these side effects is almost-certainly temporary — if it doesn’t go away while the Sildenafil is in effect, it will disappear when it stops working.
Other side effects of Sildenafil that occur significantly less frequently (affecting fewer than 1 in 100 people) include the following:
Very rarely, affecting fewer than 1 in every 1000 users, Sildenafil can produce side effects including the following:
Other side effects (typically to do with the heart) are occasionally reported, but without any confirmation about the circumstances, there’s no way to know what role Sildenafil actually plays in them. For instance, people with heart conditions sometimes acquire it and use it despite doctors recommending otherwise, with dangerous consequences.
Since the most common side effects of Sildenafil don’t affect more than 1 in 10 users, and countless people throughout the world have had great success using it on a regular basis, it’s clear that experiencing side effects — at least, those that would cause sufficient discomfort or distress to affect sexual activity — is fairly unlikely.
If you follow the prescribed instructions to the letter, take the right dosages, and remain in good health, there’s an excellent chance that you’ll have nothing but positive things to say about your experiences using Sildenafil.
Though the side effects of Sildenafil tend to be mild and brief, there are various circumstances in which things can go wrong to the extent that you should immediately seek out a medical expert to diagnose and assist you. Here’s when you need emergency support:
In most cases, users of Sildenafil don’t need to do anything special to deal with side effects — they either don’t appear at all, or they’re mild enough to be ignored until they go away. However, if they threaten your health or make it undesirable to continue with sexual activity, you should stop what you’re doing and try to relax as much as possible.
If you experience a headache while using Sildenafil, you might want to take a painkiller to dull the pain, such as paracetamol or ibuprofen - provided you don't have any medical problems that would mean they aren't suitable for you.
Various studies have been done on the effects of Sildenafil when used regularly for years, and the findings have suggested that it’s extremely safe. Most men who use it frequently can continue to do so indefinitely without seeing diminished returns or an increase in the appearance or severity of side effects.
The only notable negative long-term consequences involve users coming to rely upon Sildenafil to make up for diminished arousal or hurting themselves through engaging in vigorous sexual activity for extended periods. If you look after your health and wellbeing, you should be fine, as evidenced by the many great reviews (see more on our main Sildenafil reviews page).
Since it’s fairly unusual for someone otherwise healthy (and following their prescription) to have a bad experience using Sildenafil, the answer is a clear yes. If it doesn’t work in your particular base for whatever reason (for example, your erectile dysfunction has some other cause such as anxiety or depression), then you can simply discontinue use and seek another solution.
Some men shouldn’t use Sildenafil — this can be due to other health conditions, other medical treatments they’re using, or the problem being unrelated to blood flow. If you believe your heart is in good shape and you’re not currently using other ED treatments, you’re likely to be eligible. Check with a medical expert to confirm.
For a comprehensive list of circumstances in which someone shouldn’t use Sildenafil, head to our main page about what Sildenafil is and how it works and find the appropriate section. It should be able to satisfy your curiosity — it also follows up with a section on alternatives to this treatment, so you do have options if it isn’t right for you.
Wrapping up, let’s review the main takeaways from this page:
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