Viagra ® (
Sildenafil
) Tablets
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Patient Information about Viagra ®
Generic name:
Sildenafil
Read all of this leaflet carefully before you start taking this medicine.
- Keep this leaflet. You may need to read it again.
- If you have further questions, please ask your doctor or your pharmacist.
- This medicine has been prescribed for you personally and you should not pass it on to others. It may harm them, even if their symptoms are the same as yours.
In this leaflet;
- What Viagra is and what it is used for
- Before you take Viagra
- How to take Viagra
- Possible side effects
- Storing Viagra
Viagra 100 mg film-coated tablets Sildenafil (as citrate)
The active substance of Viagra is sildenafil. Each tablet contains 100 mg of sildenafil (as the citrate).
- The other ingredients are:
Tablet core: microcrystalline cellulose, calcium hydrogen phosphate (anhydrous), croscarmellose sodium, magnesium stearate.
Film coat: hypromellose, titanium dioxide (El71), lactose, triacetin, indigo carmine aluminium lake (E132).
Marketing Authorisation Holder and Manufacturer:
The marketing authorisation holder is Pfizer Limited, Sandwich, Kent, CT13 9NJ, United Kingdom
Viagra is made by Pfizer PGM, Zone Industrielle, 29 route des Industries, 37530 Poce-sur-Cisse, France.
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1. WHAT VIAGRA IS AND WHAT IT IS USED FOR
Viagra film-coated tablets are blue, with a rounded-diamond shape. They are marked "PFIZER" on one side and "VGR 100" on the other side. The tablets are provided in blister packs containing 1, 4, 8 or 12 tablets. Some pack sizes may not be marketed in your country.
Viagra belongs to a group of medicines called phosphodiesterase type 5 inhibitors. It works by helping to relax the blood vessels in your penis, allowing blood to flow into your penis when you get sexually excited. Viagra will only help you to get an erection if you are sexually stimulated. You should not take Viagra if you do not have erectile dysfunction. You should not take Viagra if you are a woman.
Viagra is a treatment for men with erectile dysfunction, sometimes known as impotence. This is when a man cannot get, or keep a hard, erect penis suitable for sexual activity.
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2. BEFORE YOU TAKE VIAGRA
Do not take Viagra:
If you are taking medicines containing nitrates, or nitric oxide donors such as amyl nitrite ("poppers"). These medicines are often given for relief of angina pectoris (or "chest pain"). Viagra can cause a serious increase in the effects of these medicines. Tell your doctor if you are taking any of these medicines. If you are not certain, ask your doctor or pharmacist.
If you are hypersensitive (allergic) to sildenafil or any of the other ingredients of Viagra. If you have a severe heart or liver problem.
If you have recently had a stroke or a heart attack, or if you have low blood pressure. If you have certain rare inherited eye diseases (such as retinitis pigmentosa). Take special care with Viagra:
Please tell your doctor
if you have sickle cell anaemia (an abnormality of red blood cells), leukaemia (cancer of blood cells), multiple myeloma (cancer of bone marrow) or any disease or deformity of your penis. These conditions may require special care when taking medicines for erectile dysfunction.
if you have problems with your heart. Your doctor should in that case carefully check whether your heart can take the additional strain of having sex.
if you currently have a stomach ulcer, or a bleeding disorder (such as haemophilia). You should not use Viagra with any other treatment for erectile dysfunction.
Special considerations for children
Viagra should not be given to children under the age of 18.
Special considerations for patients with kidney or liver problems
You should tell your doctor if you have kidney or liver problems. Your doctor may decide on a lower dose for you.
Using Viagra with food and drink:
When Viagra is taken with food, it may take a little longer for Viagra to work.
Pregnancy:
Viagra is not indicated for use by women
Breast feeding:
Viagra is not indicated for use by women
Driving and using machines:
Viagra can cause dizziness and effects on vision. You should be aware of how you react to Viagra before you drive or operate machinery.
Using other medicines:
Please inform your doctor or pharmacist if you are taking or have taken recently other medicines, even those not prescribed.
Viagra tablets may interfere with some medicines, especially those used to treat chest pain. In the event of a medical emergency, you should tell anyone treating your condition that you have taken Viagra. Do not take Viagra with other medicines unless your doctor tells you that you can.
Viagra may cause a serious increase in the effects of medicines called nitrates, and nitric oxide donors such as amyl nitrite ("poppers"). These are often used for the relief of angina pectoris (or "chest pain"). You should NOT take Viagra if you are taking these medicines.
If you are taking protease inhibitors, such as for the treatment of HIV, your doctor may start you on the lowest dose (25 mg) of Viagra.
Some patients who take alpha-blocker therapy for the treatment of high blood pressure or prostate problems may experience dizziness or light-headedness upon standing. These are symptoms of postural hypotension which is low blood pressure upon sitting or standing up quickly. Certain patients have experienced these symptoms when taking Viagra with alpha-blockers. This is most likely to occur within 4 hours after taking Viagra. In order to reduce the likelihood that these symptoms occur, you should be on a regular daily dose of your alpha-blocker before you start Viagra. Your doctor may start you on a 25 mg dose of Viagra.
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3. HOW TO TAKE VIAGRA
Always take Viagra exactly as your doctor has instructed you. You should check with your doctor or pharmacist if you are unsure. The usual dose is 50 mg.
You should take Viagra about one hour before sexual activity. Swallow the tablet whole with some water.
If you have the impression that the effect of Viagra is too strong or too weak, talk to your doctor or pharmacist.
Viagra will only help you to get an erection if you are sexually stimulated. The amount of time Viagra takes to work varies from person to person, but it normally takes between half an hour and one hour. You may find that Viagra takes longer to work if you take it with a heavy meal.
Drinking alcohol can temporarily impair the ability to get an erection. To get the maximum benefit from your medicine, you are advised not to drink large amounts of alcohol before taking Viagra.
If Viagra does not help you to get an erection, or if your erection does not last long enough for you to complete sexual intercourse you should tell your doctor.
You should not use Viagra more than once a day.
If you take more Viagra than you should:
A dose above 100 mg does not increase the efficacy. However, it will result in an increase in undesirable effects and their severity.
You should not take more tablets than your doctor tells you to.
If you take more tablets than you have been told to take contact your doctor.
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4. POSSIBLE SIDE EFFECTS OF VIAGRA
Like all medicines, Viagra can have side effects. These effects are normally mild to moderate.
In controlled clinical trials, the most common side effects were headache or facial lushing and less commonly indigestion, dizziness, stuffy nose, pounding heartbeat or effects on vision (including colour tinge to vision, increased brightness of light or blurred vision).
Since its introduction on the market, the following events have been reported in men taking Viagra: vomiting, allergic reactions, skin rash, bloodshot eyes, eye pain, rapid heartbeat or nosebleed. Prolonged and sometimes painful erections have been reported after taking Viagra. If you have such an erection which lasts continuously for more than 4 hours, you should contact a doctor immediately.
Also, the following events have been reported: high blood pressure, low blood pressure, fainting, stroke, irregular heartbeat, chest pain, sudden death, heart attack or temporary ecreased blood flow to parts of the brain. Most, but not all, of these men had heart problems before taking this medicine. It is not possible to determine whether these events were directly related to Viagra.
If you have chest pains during or after intercourse you should not use nitrates but you should contact your doctor immediately.
Muscle aches can occur if Viagra is taken more frequently than once a day.
If you have any of these undesirable effects and they are troublesome, severe, or do not go away as treatment goes on, tell your doctor.
If you notice any side effects not mentioned in this leaflet, please inform your doctor or harmacist.
5. STORING VIAGRA
Keep out of the reach and sight of children
Do not store above 30 °C.
Store in the original package, in order to protect from moisture.
Do not use after the expiry date stated on the carton.
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