Sildenafil 100mg - Pack of 4

  • Take Once in 24 hours
  • Generic Product
  • Pack of 4 tablets
  • Brands may vary
Finding it difficult to get or keep an erection hard enough for sex? You may be suffering from erectile dysfunction – a condition which affects more men than you think. You’re not alone – QuickMeds can help you get the right treatment which works best for you. Sildenafil is one of the most commonly used medications available on the market for treating erectile dysfunction – you may know it by its brand name ‘Viagra’ or its more common name ‘the little blue pill’.


Sildenafil is an effective treatment for erectile dysfunction.

It belongs to the class of drugs known as PDE5 inhibitors and these work by relaxing the blood vessels in your penis, allowing blood to flow into it when you are sexually aroused and resulting in an erection.

Sildenafil will not give you an instant erection – you must be sexually aroused for it to work.

Sildenafil has been proven to help men with erectile dysfunction get a hard erection and maintain it for sexual intercourse 

Who is it for?

Sildenafil is used to treat erectile dysfunction in males only – it must not be taken by females.

There are certain medical conditions which mean sildenafil is not suitable for you (contact us to discuss alternatives)

Some of these conditions include (but are not limited to)

·       If you are allergic to any of the ingredients in the tablets

·       Suffer from uncontrolled/severe heart conditions

·       Recent history of stroke or heart attack

·       Low blood pressure

·       If you are taking any nitrate containing medications (GTN spray, or nitrates in other forms such as ‘poppers’)

How to Take

Sildenafil tablets come in 25mg, 50mg and 100mg strengths..

The recommended starting dose is usually 50mg taken approximately 30 to 60 minutes before sexual activity and then adjusted to 25-100mg according to the response.

You should not take more than one tablet of sildenafil in any 24 hour period, nor should it be mixed with other erectile dysfunction treatments.

Taking sildenafil – some practical tips

1.       Get in the mood!

Sildenafil by itself will not give you a spontaneous erection – you need to have adequate sexual stimulation for it to work so engage in foreplay just as you would had you not take any sildenafil.

2.       Don’t rush!

Sildenafil takes about 30-60 minutes to start working, it remains effective for about 4-5 hours from administration so don’t rush! Remember, you must have adequate sexual stimulation.   

3.       Eat smart

You can take sildenafil with or without food.

If taken after a meal which is high in fat you may find it takes a little longer to work.

4.       Don’t give up

With some men sildenafil may not work the first time you take it, this may be because of a multitude of factors.

If it doesn’t work the first time, just try again on another day – remember, its no more than one tablet in any 24 hour period.

5.       Get help if sildenafil still doesn’t work.

If you find after repeat doses sildenafil is still not producing a sufficient erection get in touch with us at QuickMeds for further advice.

Sometimes there are reversible causes of erectile dysfunction which may warrant further investigation, often trying similar medications to sildenafil can produce the desired results. 

Side Effects

As with all medications sildenafil can cause side effects in some people who take it.

It is reassuring that any such side effects are usually mild/moderate and only last for a short period of time.

The most common side effects include:

·       Headache

·       Facial flushing

·       Blurred vision/altered vision

·       Stuffy nose

·       Dizziness

If you experience any of the following please seek immediate medical help from either your GP, out of hours providers (111) or the emergency services (999) as appropriate;

·       Chest pain during or after sexual intercourse/activity

·       Allergic reaction (swelling of the eyes/face/lips/throat, difficulty breathing)

·       Prolonged erection lasting more than 4 hours


You can read more about the side effects of sildenafil in the patient information leaflet which is found below.

Patient Information Leaflet

Cautions & Warnings

Sildenafil may not be appropriate for everyone.

It is only to be used by males who suffer from erectile dysfunction – this is defined as the inability to achieve and/or maintain an erection sufficient for sexual activity.

As with any medical substance interactions can occur when taken with other medications or treatments including but not limited to those below

·       Nitrate containing medications
This can include medications such as ‘GTN’ spray, isosorbide mononitrate

·       Nitrates in other forms such ‘poppers’

·       Antibiotics such as erythromycin, clarithromycin

·       Antifungals such as Ketoconazole or Itraconazole

·       HIV medications such as Ritonavir, Saquinavir

·       Medications that affect your bleeding or clotting

This can include medications such as warfarin

If you have any concerns or queries regarding whether or not sildenafil is safe to take with any combination of medications (both prescribed and over the counter) then do not hesitate to get in touch with one of our qualified pharmacists at QuickMeds. 

Yes. As long as you buy Sildenafil from a reputable source like a registered pharmacy with an online store. Even though Sildenafil is much cheaper than Viagra, it doesn't mean it's less effective or a lower quality medication. Online pharmacies need to provide certain licenses and certifications to prove that they are safe to buy from. Please read our article on how to safely buy medication online.