Canada Med Stop Prescription Required
IMPORTANT NOTE: A valid Prescription is required to be mailed or faxed to complete this order. I acknowledge that I will need to be contacted to complete a health profile before my order is shipped.
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Sildenafil under the brand name Viagra is used to treat erectile dysfunction. Sildenafil under the brand name Revatio is used to treat pulmonary arterial hypertension and improve exercise capacity in both sexes. Do not take both brands at once. Sildenafil relaxes muscles in blood vessels, increasing blood flow to areas of the body such as the penis. Do not give this medication to patients under 18 without medical approval.

Generally, Revatio is taken 3 times a day every 4-6 hours. Viagra is taken as-needed, 30 minutes to 1 hour before sexual activity, and up to 4 hours before sexual activity. Do not take Viagra more than once a day. 


Do not take sildenafil if you also take a nitrate drug, including recreational “poppers.” Alert your doctor to all other drugs you may be taking, as sildenafil can interact dangerously with them, especially riociguat, antifungals, HIV/AIDS medicine, prostate disorder medicine, and similar medicines like tadalafil. Tell your doctor your complete medical history prior to taking a new drug, especially if you smoke, if you’ve had heart or circulation problems, vision problems, blood cell disorders, or have been told not to have intercourse for other health reasons. Tell your doctor if you become pregnant or breast-feed. Avoid grapefruit products and other medications that treat impotence.

Side Effects

Find immediate emergency assistance if you experience serious side effects such as: allergic reaction, overdose, erection that lasts for more than 4 hours, painful erection, sudden vision loss, hearing problems, heart attack symptoms, convulsions, shortness of breath, and lightheadedness. If you notice a serious symptom such as the following during sexual activity, stop and contact your doctor: pain, numbness, dizziness, nausea, tingling. Additional side effects of sildenafil include: flushing, headache, abnormal vision, congestion, nosebleeds, insomnia, muscle or back pain.

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Sally D

March 14, 2023

Meds arrived quickly, probably because they came from Canada. In good shape.

Dwayne M

March 14, 2023


Pamela V

March 14, 2023

I am always very pleased with being able to order from Medicare will only cover half the year and then I am in the donut hole....Xarelto works very well for my A-Fib and because of you I can use all year long

Nancy M

March 14, 2023

The representatives are excellent in customer service. I have used this drug company for many years. The price of my prescription is the reason I use Canada Meds.

Carolyn W

March 14, 2023

good interaction and very helpful

Carol K

March 14, 2023

I have used Canada Med Stop for about 10 years. My orders have always been efficiently handled and approved by my doctors. Plus the cost of my prescription has been a 3rd of the cost in the US.

A valid Prescription is required to be mailed or faxed to complete this order. I acknowledge that I will need to be contacted to complete a health profile before my order is shipped.

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Our goal is to bring you the most affordable medication. If you find a lower price advertised by another website or your local pharmacy, we’ll match that price or beat it by 10% of the difference.* Call us at 1-877-202-1513 and a member of our CareTeam will be happy to assist you.

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* Some exceptions may apply
Some exceptions may apply. To qualify for price matching, competitors must meet our standards for patient safety. Advertised prices must be for medication of the same type, strength, quantity, and form.