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Product Information

Brand names:

Sildenafil is the generic name of Viagra or Revatio. It is also known as “the little blue pill”. This medicine relaxes muscles of the blood vessels and increases blood flow to areas of the body including the penis.

Sildenafil under the name Viagra is used to treat erectile dysfunction (impotence) in men.

Another brand of sildenafil is Revatio, which is used to treat pulmonary arterial hypertension and improve exercise capacity in men and women.

Do not take Viagra while also taking Revatio, unless your doctor tells you to.

Sildenafil may also be used for purposes not listed in this medication guide.

Viagra Online Canada

The active ingredient in Viagra is sildenafil and is used to treat erectile dysfunction. Many men prefer Viagra to other options such as Cialis (tadalafil) and Levitra(vardenafil).

Dosage forms & Strengths:

Tablet (Revatio)

  • 20mg

Tablet (Viagra)

  • 25mg

  • 50mg

  • 100mg

Injectable solution (Revatio)

  • 10mg/12.5mL

Oral suspension (Revatio)

  • 10mg/mL (when reconstituted) How should you take sildenafil?

Follow all directions on your prescription label and read all medication guides or instruction sheets. Use sildenafil exactly as directed. The brand sildenafil known as Viagra should be taken 30-60 minutes before sexual activity. It’s important to take it without a meal because fat in a meal can decrease and delay its absorption, which can lower sildenafil’s effectiveness. You may take it up to four hours before sexual activity. Do not take Viagra more than once per day. Revatio is usually taken three times each day, about four to six hours apart. If you are taking the oral suspension (liquid), shake well before you measure a dose. If you miss a dose of Revatio, take the medicine as soon as you can, but skip the missed dose if it is almost time for your next dose. Do not take two doses at one time. Store at room temperature away from moisture and heat.

How long does sildenafil take to work?

Sildenafil (Viagra) is a short acting medication with a rapid onset. It reaches peak blood levels in 60 minutes on average. However, consuming a fatty meal immediately prior to taking Viagra can slow absorption and effectiveness.

Viagra can help you have an erection when sexual stimulation occurs. An erection will not occur just by taking a pill.

How long does sildenafil last?

Sildenafil is a short acting drug and usually lasts 4–5 hours but this does not mean you will maintain an erection for this long.

The time that it takes to eliminate sildenafil may be prolonged in older people and people with liver or kidney disease.

What happens if I overdose?

Seek emergency medical attention.

If you have any questions about buying discount Cialis online or Adcirca, Alyq, tadalafil or any other prescription products online, you can contact us.

What should I tell my healthcare provider before taking Sildenafil?

It is important to tell your healthcare provider your complete medical history before taking any medication.

Tell your doctor if you have ever had or may be:

  • heart problems; high or low blood pressure; blood circulation problems; retinitis pigmentosa ;

  • blindness in one or both eyes;

  • bleeding problems;

  • a stomach ulcer;

  • pulmonary veno-occlusive disease (PVOD);

  • liver or kidney disease;

  • a blood cell disorder such as sickle cell

  • anemia, multiple myeloma, or leukemia;

  • a physical deformity of the penis;

  • if you have been told you should not have sexual intercourse for health reasons

  • pregnant or breastfeeding

Do not give this medication to anyone under 18 years old without medical advice.

What other drugs interact with Sildenafil?

Tell your doctor about all your current medicines and any you start or stop using, especially:

  • drugs to treat high blood pressure or a prostate disorder;

  • antifungal medicine–ketoconazole or itraconazole; or

  • medicine to treat HIV/AIDS–ritonavir and others. This list is not complete. Other drugs may interact with this medication, including prescription and over-the-counter medicines, vitamins, and herbal products. Too much alcohol may affect the effectiveness of Viagra. Moderate amounts of alcohol while taking Viagra seems to be safe.

What are the possible side effects of sildenafil?

Get emergency medical help if you have signs of an allergic reaction to drug: hives; difficulty breathing; swelling of your face, lips, tongue, or throat. Stop taking sildenafil and get emergency medical help if you have:

  • heart attack symptoms–chest pain or pressure, pain spreading to your jaw or shoulder, nausea, sweating;

  • vision changes or sudden vision loss; or

  • erection is painful or lasts longer than 4 hours (prolonged erection can damage the penis).

Common side effects may include:

  • flushing (warmth, redness, or tingly feeling);

  • headache, dizziness;

  • abnormal vision (blurred vision, changes in color vision)

  • runny or stuffy nose, nosebleeds;

  • sleep problems (insomnia);

  • muscle pain, back pain; or

  • upset stomach.

This is not a complete list of side effects and others may occur.

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For many products we offer a lower per unit cost when you purchase larger quantities. If your quantity is larger than what is available on this website, please contact us directly.


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Brand-name and generic products are therapeutically equivalent.


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Whatever source country you choose, your product will take about the same number of days to arrive.

Discreet Packaging

Your order for Viagra will be shipped in discreet packaging so whether the item is shipped to your home or work no one will know the contents of the shipment until opened.


Delivery Timetable

Average regular delivery time:
10 days from our Canadian online pharmacy.

Delivery times for Viagra do vary depending on the location of the dispensary. The reason deliveries take time is primarily due to customs procedures that need to be completed prior to allowing our packages to enter the United States. Expedited and tracked delivery services are available from our Canadian online dispensary. Please speak to one of our online pharmacy service representatives if you have any questions about delivery times for your order.

The prescription medications you have requested were lawfully prescribed by a qualified and licensed physician. You have attended, have had a physical examination, and have received a prescription from a duly licensed practitioner within the last year, and do not require an additional physical examination. You have not altered your prescription in any way. The duty of care with respect to the prescribing of your medications is and shall remain the responsibility of your physician. You will consult with your physician for any appropriate monitoring and testing. You will use your medication only as directed by your physician and will remain under the care of your physician while taking your medication. Except as specifically authorized by law (and further clarified herein), you are not purchasing medications for anyone else, and you will be the only person using the medications prescribed for you. In the event that you are unable to personally place your order with CheapoMeds due to age or infirmity, you can authorize someone else to place your order and assist you in acquiring your medications, so long as they have power of attorney over your affairs, and provide a copy of their legal authorization to act on your behalf to CheapoMeds.

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