How to use Sildenafil citrate Tablet 100mg and 20mg

Read the Patient Information Leaflet provided by your pharmacist before you start taking tadalafil vs sildenafil and each time you get a refill. If you have any questions, ask your doctor or pharmacist.

To treat erectile dysfunction-ED, take this drug by mouth as directed by your doctor, usually as needed. Take sildenafil at least 30 minutes, but no more than 4 hours, before sexual activity (1 hour before is the most effective). Do not take more than once daily.

Erectile dysfunction (sometimes called impotence) means that you cannot get or maintain a proper erection. There are several causes, the most common being due to a narrowing of the arteries that take blood to the penis.

Sildenafil citrate works by preventing the action of a chemical in your body, called phosphodiesterase type-5. This helps to widen (relax) blood vessels and improves the flow of blood to the penis following sexual stimulation. This helps to maintain an erection.

Sildenafil citrate is available on prescription. Non-branded (generic) tablets of sildenafil are available on the NHS, but the brand Viagra® can only be prescribed on the NHS for men with erectile dysfunction resulting from certain medical conditions.

Sildenafil 50mg 100mg 20mg side effects and dosage can be blurred vision and it can also be bought over the counter from pharmacies in certain circumstances. Ask your pharmacist for advice on whether this option is suitable for you.

Another brand of sildenafil tablets called Revatio® is used in a completely different condition called pulmonary arterial hypertension – please see the separate medicine leaflet called Sildenafil for pulmonary hypertension if you have been prescribed this brand of sildenafil tablets.