Sildenafil | Treatments | IQ Doctor

Picture for illustrative purposes only, supplied brand may vary

Free delivery on all orders over £30.

Sildenafil (Generic Viagra – low cost)



Please fill out this questionnaire before ordering this product

SKU: 3b10e1470993 Category:

What is Sildenafil?

Sildenafil is the generic version of the drug Viagra, a prescription only drug used in the treatment of erectile dysfunction (ED).

Sildenafil is an extremely modern, effective treatment for erectile dysfunction.   When you use sildenafil you will be able to:

  • Improve your ability to get erections
  • Increase your confidence in your ability to achieve and maintain an erection
  • Experience satisfaction with the firmness of your erection.

Sildenafil is from a group of drugs called phosphodiesterase type 5 inhibitors. Which improve the blood flow to the penis and help improve your ability to achieve and maintain an erection.



What is the difference between Sildenafil and Viagra?

Sildenafil is the active ingredient in Viagra that works so well in treating erectile dysfunction. Sildenafil is available as an unbranded generic tablet that is medically identical to the branded Viagra but available at a much lower price. Because Sildenafil is made by a number of manufacturers this competition helps lower the price. Pfizer are the only pharmaceutical company allowed to use the brand name Viagra which allows them to sell the branded version at a premium despite being clinically identical to the generic version.



Choosing the right starting dose

The recommended starting dose for Sildenafil is one 50mg tablet 1 hour before sexual activity. You can adjust your dose based on your response. If you find 50mg does treat ED but you experience unpleasant side effects you can decrease your dose to 25mg. If you find 50mg is inadequately treating your ED, you can increase your dosage to 100mg. If you find that 100mg has failed to treat your erectile dysfunction on 8 or more separate occasions or you experience side effects you are unable to tolerate you should stop treatment and consult your doctor.



How do I take Sildenafil?

Take one tablet with water one hour before you plan to have sexual activity. You may find that sildenafil starts to work around half an hour after taking it. Although Sildenafil can be taken with or without food you may find it takes longer to work after a heavy meal.




Caution before using Sildenafil

  • It is not advisable for men without erectile dysfunction, individuals under the age of 18 years, and women to use Sildenafil.
  • Sildenafil ‘most common side effects are headache, flushing, upset stomach, and abnormal vision, but there are others.
  • If you experience negative side effects, sudden decrease in vision or hearing, stop taking Sildenafil and call your doctor right away.
  • Do not take Sildenafil if you take nitrates.
  • Get immediate medical help if your erection lasts longer than 4 hours.
  • Do not take Sildenafil if you have severe heart of liver problems.
  • Do not use Sildenafil if you recently had a stroke or heart attack, or if you have low blood pressure.
  • Avoid the use of Sildenafil if you have certain inherited eye diseases.



Possible side effects of Sildenafil:

The most common side effects of Sildenafil are:

  • Headache
  • facial flushing
  • upset stomach
  • nausea and or vomiting
  • blocked or runny nose
  • visual disturbances

For a complete list of side effects please read the patient information leaflet.



Patient Information Leaflet


Download Patient Information Leaflet





Additional Information

ORDER Within


for delivery on Wednesday the 15th