Sildenafil Teva
From £3.99

£40 OFF First Order
£25 OFF Every Order
Sildenafil tablets, available as both generic sildenafil and branded Viagra, are effective treatments for erectile dysfunction. Like all medications, they may cause side effects in some men. Understanding these potential reactions helps you make informed decisions about your ED treatment. Most side effects are mild and temporary, but it's important to know what to expect and when to seek medical advice.
From £3.99

From £28.99

From £22.99

From £27.99

From £44.99

From £23.99

From £8.49

From £32.99


When PDE5 is suppressed, blood is able to flow more freely through the body—including to the (you guessed it) penis.

More blood flow to the penis means harder, more satisfying erections once you're sexually stimulated.
The majority of men taking sildenafil tablets experience few or no side effects. When they do occur, the most frequently reported include headaches (affecting up to 16% of users), facial flushing (10%), and indigestion or heartburn (7%). These common reactions typically develop within an hour of taking the medication and usually resolve naturally within 2-4 hours as the drug processes through your system.
Other regularly reported side effects include nasal congestion, dizziness, and visual disturbances such as slight colour changes or increased light sensitivity. These effects occur because sildenafil can affect blood vessels throughout the body, not just those in the penis. The good news is that most men find these side effects become less noticeable with continued use as their body adjusts to the medication.
Several factors may influence whether you experience side effects from sildenafil tablets. Higher doses (100mg) are more likely to cause reactions compared to lower doses (25mg or 50mg). Taking sildenafil with alcohol or fatty meals may also increase the likelihood of side effects, particularly headaches and flushing. Age can be a factor too, with older men sometimes more sensitive to the medication's effects.
Your overall health status also plays a role. Men with certain conditions like diabetes or cardiovascular issues may experience different side effect profiles. This is why EverydayMeds requires a comprehensive medical assessment before prescribing either generic sildenafil or branded Viagra, ensuring the treatment is appropriate for your individual circumstances.
Whilst rare, some serious side effects require immediate medical attention. Priapism - a painful erection lasting more than 4 hours - affects fewer than 1 in 1000 men but needs emergency treatment to prevent permanent damage. Sudden vision loss or hearing problems, though extremely uncommon, should prompt immediate medical consultation.
Chest pain during sexual activity is another serious concern, particularly if you have underlying heart conditions. If you experience severe dizziness, fainting, or irregular heartbeat, stop taking sildenafil and seek medical advice. These reactions are more likely if you're taking medications that interact with sildenafil, which is why honest disclosure during your consultation is essential.
There are several strategies to reduce the likelihood of experiencing side effects from sildenafil tablets. Starting with a lower dose (typically 50mg) allows your doctor to assess your tolerance before potentially increasing the strength. Taking the medication on an empty stomach and avoiding excessive alcohol can help minimise digestive side effects and improve effectiveness.
For persistent headaches, drinking plenty of water and taking a simple painkiller like paracetamol is usually effective. If facial flushing is bothersome, staying in cooler environments and wearing loose clothing can help. Remember that both generic sildenafil and branded Viagra contain the same active ingredient, so side effect profiles are identical - choosing between them is often a matter of personal preference and cost consideration.
It's one of the most common conditions we treat, and one of the most treatable.
Achieve your goals in just a few simple steps.
Select safe UK treatments. Quick answers.
Our expert team will use your consultation as the basis of our recommendation and communicate with you.
We’ll deliver direct to you, as quickly as tomorrow.