Patient Information

Nitrates are found in many prescriptions that are used to treat angina pectoris (chest pain due to heart disease). You should not take VIAGRA if you are taking these drugs.

What form(s) does this medication come in?

VIAGRA (sildenafil citrate) is a treatment for erectile dysfunction in male adults. This is when a man cannot achieve or maintain a hard, erected penis for satisfactory sexual activity. It is important to note that VIAGRA works only with sexual stimulation. VIAGRA alone does not increase your sex drive. VIAGRA belongs to a class of medicine called phosphodiesterase type 5 (PDE5) inhibitors.

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Following sexual stimulation, VIAGRA works by helping to relax the blood vessels in your penis by allowing blood to flow into your penis. If you are taking any medicines containing nitrates in any form (oral, sublingual [under the tongue], skin patch, or by inhalation [spray]). Although VIAGRA is used occasionally, nitrates must never be used. Nitrates are found in many prescription medicines that are used in the treatment of angina pectoris (chest pain due to heart disease), such as nitroglycerin, isosorbide mononitrate, or isosorbide dinitrate. If you do not understand what nitrates are, or are unsure about whether a medication you are taking is a “nitrate”, ask your doctor or pharmacist.If you take VIAGRA with nitrate-containing medicines or any other nitrates (e.g., amyl nitrite “poppers”), your blood pressure could suddenly drop to a life-threatening level. alpha-blockers (drugs used to treat prostate problems or high blood pressure) ketoconazole or itraconazole (drugs used to treat fungal infections) erythromycin (a drug used to treat bacterial infections) ritonavir, saquinavir or other drugs for the treatment of HIV cimetidine (a drug generally used to treat duodenal or gastric problems) bosentan (a drug used in the treatment of high blood pressure in the blood vessels between the heart and the lungs) These drugs are Cialis, Levitra, Adcirca and Staxyn. They are used in the treatment of high blood pressure in the blood vessels between the heart and the lungs. Grapefruit juice may increase the sildenafil 12 5 mg levels of VIAGRA in your blood. Your doctor can determine the dose that works best for you. Always take VIAGRA as prescribed by your doctor.

• Canadian regulations restrict online sale of sildenafil without prescription.
• Many Canadians obtain sildenafil through licensed pharmacies.
• Telemedicine services are available for prescriptions.
• Beware of unregulated websites offering cheap sildenafil.
• Government agencies crackdown on illegal online pharmacies.

You should speak with your doctor or pharmacist if you are unsure. A dose above 100 mg per day is not recommended. Swallow the tablet whole, with some water.

You should not take more than one dose of VIAGRA per day. If you have serious liver or kidney problems or you are 65 years of age or over, your doctor may start you at the lowest dose (25 mg) of VIAGRA. You should take VIAGRA approximately 30 to 60 minutes before sexual activity. You can engage in sexual activity within 30 minutes of taking the tablet and for up to 4 hours. The amount of time it takes to have an effect varies slightly from person to person. Remember, sexual stimulation is required for VIAGRA to work. You should avoid excessive drinking of alcohol, since alcohol can temporarily impair the ability to get an erection.

VIAGRA can be taken with or without food.

However, you may find that it takes longer for VIAGRA to work if you take it with a high-fat meal.

In this drug factsheet:

If you are taking VIAGRA and experience temporary, decrease, or permanent loss of vision, stop taking VIAGRA and call your doctor. In case of chest pain occurring during or after sexual activity you should not use nitrates but you should seek immediate medical assistance. Sudden decrease or loss of hearing has been reported in a few number of postmarketing and clinical trial cases with the use of PDE5 inhibitors, including VIAGRA. It has not been established whether these are related directly to the use of these medications or to other factors. If you experience these symptoms, stop taking VIAGRA and call your doctor.

Is Sildenafil safe for me?

Driving and using machines: Before you perform tasks which may require special attention, wait until you know how you respond to VIAGRA. Dizziness or altered vision can occur while using VIAGRA. You should tell your doctor or pharmacist about any other medications that you are taking. Only take VIAGRA with other drugs if recommended by your doctor. Drugs that may interact with VIAGRA include: any drugs that contain nitrates in any form (oral, sublingual [under the tongue], skin patch or by inhalation [spray]). VIAGRA may not work the first time or every time. If VIAGRA did not work for you on one occasion, try again on another day.

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You could get dizzy, faint, or even have a heart attack or stroke. If you have loss of vision in one or both eyes from an eye disease called non-arteritic anterior ischaemic optic neuropathy (NAION) If you have ever had an allergic reaction to sildenafil citrate or the nonmedicinal ingredients in VIAGRA. VIAGRA is not to be used in men for whom sexual activity is inadvisable. Do not take VIAGRA with guanylate cyclase stimulators, such as riociguat. VIAGRA is available as blue, rounded, diamond-shaped tablets marked ‘PFIZER’ on one side, and ‘VGR 25, 50, or 100’ on the other.

How much will my treatment cost?

Each tablet contains either 25 mg, 50 mg or 100 mg sildenafil citrate. 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. BEFORE you use VIAGRA talk to your doctor or pharmacist if you: have heart problems (irregular heart beats, angina, chest pain, or had a heart attack). If you have heart problems, ask your doctor if your heart is healthy enough to handle the extra strain of having sex. You will learn how well VIAGRA works for you through your personal experience. The first few times may be charged with emotion or anxiety.

Are there Alternative Names for the Brand or Generic Viagra?

If you have chest pain, dizziness or nausea during sex, stop exerting yourself. You should not use nitrates but you should seek immediate medical assistance. are 65 years of age or over have low blood pressure or uncontrolled high blood pressure have sickle cell anemia (abnormality of the red blood cells), multiple myeloma (cancer of the bone marrow) or leukaemia (cancer of the white blood cells) are allergic to sildenafil or any of the other ingredients of VIAGRA tablets have a deformed penis or Peyronie’s disease have ever had an erection that lasted more than 4 hours have stomach ulcers or other bleeding problems. have a rare inherited eye disease called retinitis pigmentosa have had temporary, decrease, or permanent loss of vision in one or both eyes, including a condition called Non-Arteritic Anterior Ischemic Optic Neuropathy (NAION). The specific type of vision decrease or loss, called non-arteritic anterior ischemic optic neuropathy (NAION), seems to occur rarely when blood flow to the optic nerve is reduced or blocked.

When is my medication shipped?

Vision decrease or loss may be partial or complete, in one or very occasionally both eyes. While in some cases the condition may improve over time, it can also be irreversible. Rare but serious skin reactions of Stevens-Johnson’s Syndrome (SJS) and Toxic Epidermal Necrolysis (TEN) have been reported during the post-marketing period VIAGRA is not recommended for use in children under 18 years of age and in women. VIAGRA does not protect against sexually transmitted diseases (STD), including Human Immunodeficiency Virus (HIV). Alcohol consumption may decrease the ability to get an erection. If after a few separate attempts, you do not get the results you expect, talk to your doctor.

• Sildenafil citrate may interact with certain medications.
• Always inform your doctor of all medicines being taken.
• Alcohol can diminish the effectiveness of sildenafil.
• Use with caution if you have heart conditions.
• Seek immediate medical help for allergic reactions.

If you have taken more VIAGRA than you should, contact your doctor or a poison control centre immediately As with most drugs, VIAGRA can cause some side effects. These effects are usually mild to moderate in nature and do not last for a long time. throat tightness, dry mouth, decreased sensitivity of the mouth pain in arms and legs, myalgia (muscle pain) If you notice any side effects not mentioned above, or any of the above-mentioned side effects persist or become bothersome, please contact your doctor or pharmacist. This is not a complete list of side effects. For any unexpected effects while taking VIAGRA, contact your doctor or pharmacist. Store between 15°C and 30°C, in the original package. Do not take VIAGRA after the expiry date shown on the package. Always keep VIAGRA out of reach and sight of children. You can report any suspected side effects associated with the use of health products to Health Canada by: Complete a Canada Vigilance Reporting Form and: Fax toll-free to 1-866-678-6789, or Mail to: Canada Vigilance ProgramHealth CanadaPostal Locator 1908COttawa, ON K1A 0K9 Fax toll-free to 1-866-678-6789, or Mail to: Canada Vigilance ProgramHealth CanadaPostal Locator 1908COttawa, ON K1A 0K9 Postage paid labels, Canada Vigilance Reporting Form and the adverse reaction reporting guidelines are available on the MedEffect™ Canada Web site at NOTE: Contact your health professional if you need information about how to manage your side effects. The Canada Vigilance Program does not provide medical advice. This document plus the full product monograph, prepared for health professionals can be found at: or by contacting the sponsor, Upjohn Canada ULC, at: 1-800- 463-6001 This leaflet was prepared by Upjohn Canada ULC. Upjohn Canada ULC Kirkland, Québec, H9J 2M5 ® Pfizer Products Inc. Upjohn Canada ULC, Licensee © Upjohn Canada ULC, 2020 Viagra prices might be different for each strength. You can buy Viagra for $58.00 per tablet while purchasing from US Pharmacies. However, Same brand and strength can be purchased a lot cheaper for between $11.00 and $15.00 per tablet when ordered from Canadian Pharmacy online. Let's see how much Viagra cost per tablet using our comparison table below: Did you know you can buy Viagra from Canada and save upto 80% compared to local pharmacies in USA? Erectile difficulty is one condition that most men won't be willing to overlook, and so many will ask 'how much is Viagra?'. For people in America the cost is always much higher. Being able to fill prescriptions and dispense medications like Viagra much more affordably is a big part of the appeal of these pharmacies.