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Viagra

Order Your Prescription For Viagra Online

Viagra is a medication for erectile dysfunction. It works by relaxing your blood vessels and increasing the blood flow to your penis. According to a recent study, two out of three men who experienced erectile problems reported that taking a PDE-5 inhibitor such as Viagra improved their erection. In most cases, Viagra takes effect within 30 minutes.

Order your Viagra prescription online from Superdrug - our service is fast, confidential and discreet. When you place your order, you need to fill in a brief medical questionnaire. our online doctor will use your answers to establish whether Viagra is right for you.

You can use your Superdrug Online Doctor prescription to buy Viagra at any pharmacy in Ireland.
Use our online assessment to order treatment. Existing patients should login first.
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More Information

How does Viagra work?

Viagra is a commonly prescribed medication for the treatment of erectile dysfunction. Its active ingredient is sildenafil, a PDE-5 inhibitor. Originally trialled as a medication for a heart condition, it was found to work better for erectile dysfunction. Viagra is the best-known of all the branded erectile dysfunction medications and is produced by Pfizer.

Viagra works by relaxing the blood vessels and improving the blood flow to the penis, which makes it easier to achieve and maintain an erection. It will not work if you are not sexually aroused. 

Why is Viagra prescribed?

Viagra is prescribed for erectile dysfunction, which is a common condition. At some point in their lives, most men will suffer from erectile problems, whether caused by physical or psychological factors. Underlying physical causes can include conditions such as diabetes or high blood pressure. Possible psychological causes can include stress.. If you regularly experience difficulties with maintaining an erection, you may suffer from erectile dysfunction.

How can I buy Viagra online?

Viagra is sold online on a number of websites, the majority of which offer unregulated or often fake products. You can never be sure what you are ordering if you buy from an unlicensed or illegitimate site claiming to sell a prescription-only medication without the need for a prescription, and you are putting yourself at risk by doing so.

However, licensed online doctor services such as Superdrug Online Doctor offer a safe way to order a prescription online. A qualified and UK registered doctor will assess your medical information and history. If Viagra is suitable for you, you will receive a prescription, which you can use to buy Viagra at your local pharmacy. 

Avoid unlicensed “alternative options” to Viagra, including “herbal” treatments such as Kamagra; they often fail to work, are produced and sold without quality checks and may cause more harm than good.

Taking Viagra for the first time

The effect of Viagra may take up to an hour to become noticeable, so you should ensure you allow enough time before having sex. How quickly it works varies between men and it also depends on how recently you have eaten. 

How much Viagra should I take?

Viagra tablets come in different dosages, ranging from 25mg to 100mg. Most men are initially prescribed the 50mg dose, which is neither the strongest nor the weakest dose. 

Older patients may be prescribed a lower dosage, as the side effects of a higher dose may be more likely to affect them. If you are initially prescribed a 25mg dosage and this does not work as intended, you may require a 50mg dosage. However, it is advisable to try the lower dosage several times, as psychological issues including nervousness and stress may be playing a part in your erectile problems. Therefore, you may find that upon using the lower dosage for the second or third time, you will be more relaxed and it may work properly.

Should I take another Viagra tablet if it doesn't work?

No. Do not take more than one dose of Viagra, regardless of dosage, within a 24-hour period. You may overdose by doing so and this could not only cause harmful side effects but actually damage the muscles in your penis. One serious side effect of an overdose is priapism (a sustained erection lasting too long) and if you find you have had an erection for more than four hours, contact a doctor immediately.

If Viagra is not as effective as desired, try the same dosage once or twice more to ensure it is not your nerves affecting the treatment. If it still does not work, speak to your doctor, who may prescribe a higher dosage.

How do I take Viagra?

Viagra, like many other tablets, can be taken with a glass of water. It should not be taken with alcohol, as this can cause side effects, especially in men who suffer from conditions affecting the heart, liver or kidneys. Alcohol also makes it more difficult for most men to get and maintain an erection.

Viagra can take much longer to have the desired effect if you take it shortly after eating a large meal, as this slows down the metabolic process in your stomach. Eating fatty foods such as fast food may make this process very slow, so it is recommended to take Viagra on a nearly-empty stomach or several hours after a meal if you want it to take effect as soon as possible.

Viagra tablets are blue, shaped like diamonds with rounded edges. They contain the active ingredient sildenafil, in dosages of 25, 50 or 100mg. This should be indicated on one side of the tablet, which will read 'VGR25', 'VGR50' or 'VGR100'. The other side of your tablet should read “Pfizer”.
Which side effects can Viagra cause?

There are a range of possible side effects Viagra can cause, most of which are not considered serious. Common side effects of Viagra include flushes, headache and indigestion. It can also cause a stuffy nose, dizziness, back or muscle aches, nausea or minor visual disturbances.

Uncommon side effects:

  • nausea or vomiting
  • rashes on the skin
  • palpitations or rapid heartbeat
  • irritated or bloodshot eyes, eye pain, double vision, watery eyes or an odd sensation in the eye
  • sleepiness
  • reduced sense of touch
  • vertigo and tinnitus
  • dry mouth
  • muscle pain
  • changes in blood pressure
  • nose bleeds, sinus congestion

Rare side effects

  • irregular heartbeat or a heart attack
  • a stroke
  • a sudden change in or loss of hearing

Viagra is not suitable for you if:

  • you have a particular type of cancer, including leukaemia or myeloma
  • you have haemophilia
  • you use protease inhibitors
  • you have sickle cell anaemia
  • you have active stomach ulcers
  • you take certain antifungal medications, such as ketoconazole or itraconazole
  • you are taking certain medicines, such as Quinidine, Sotalol, Amiodarone or Procainamide for the treatment of arrhythmia
  • you are taking macrolide antibiotics, such as erythromycin or clarithromycin
  • you have a deformity of the penis, such as Peyronie's disease or angulation
  • you have certain heart problems or cardiovascular issues
  • you have problems with your liver or kidneys
  • you are allergic to sildenafil or any other ingredient in Viagra
  • you are taking nitrates or nitric oxide donors
  • you are female, or a male under 18
  • you have  low blood pressure
  • you have a family history of eye conditions, such as retinitis pigmentosa or non-arteritic ischaemic optic neuropathy
  • you are already taking an erectile dysfunction treatment containing sildenafil

Seek help from a doctor immediately if:

  • your erection lasts longer than four hours
  • you experience chest pain during or after sex
  • you notice changes in your hearing or vision

Do not operate machinery or drive if you feel dizzy or experience any changes in hearing or vision after taking Viagra.