Notice: Images are for illustration only and may not reflect the exact product you receive. Brand-name medications may look different depending on their country of origin—Canadian versions, for example, often include a "PR" symbol on the packaging. Rest assured, the medication, dosage, and active ingredients will be exactly as prescribed. Canada Pharmacy Store is committed to your health and safety, and we work only with licensed pharmacies to ensure you receive trusted, high-quality medication every time.
Viagra (Sildenafil)
| Sildenafil (Generic) Sildenafil (Sildenafil Citrate) | ||||||
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Shipped from Canada | ||||||
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| Select product strength & quantity:
Who is the product for? YouOtherAdd Family Member/PetYou must be logged in to add additional members to the order. Don't have an account? or Add Family Member/PetSign inTo continue, please enter your email address and password that you use for your account. | ||||||
| Select product strength & quantity:
Who is the product for? YouOtherAdd Family Member/PetYou must be logged in to add additional members to the order. Don't have an account? or Add Family Member/PetSign inTo continue, please enter your email address and password that you use for your account. | ||||||
| Select product strength & quantity:
Who is the product for? YouOtherAdd Family Member/PetYou must be logged in to add additional members to the order. Don't have an account? or Add Family Member/PetSign inTo continue, please enter your email address and password that you use for your account. | ||||||
| Sildenafil (Generic) Sildenafil (Sildenafil Citrate) | ||||||
Shipped from United Kingdom | ||||||
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| Select product strength & quantity:
Who is the product for? YouOtherAdd Family Member/PetYou must be logged in to add additional members to the order. Don't have an account? or Add Family Member/PetSign inTo continue, please enter your email address and password that you use for your account. | ||||||
| Select product strength & quantity:
Who is the product for? YouOtherAdd Family Member/PetYou must be logged in to add additional members to the order. Don't have an account? or Add Family Member/PetSign inTo continue, please enter your email address and password that you use for your account. | ||||||
| Select product strength & quantity:
Who is the product for? YouOtherAdd Family Member/PetYou must be logged in to add additional members to the order. Don't have an account? or Add Family Member/PetSign inTo continue, please enter your email address and password that you use for your account. | ||||||
| Sildenafil R (Generic) Sildenafil Citrate | ||||||
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Shipped from Canada | ||||||
| | ||||||
| Select product strength & quantity:
Who is the product for? YouOtherAdd Family Member/PetYou must be logged in to add additional members to the order. Don't have an account? or Add Family Member/PetSign inTo continue, please enter your email address and password that you use for your account. | ||||||
General Medication Fact Sheet for Viagra
| Field | Information |
|---|---|
| Medication Name | Viagra |
| Generic Name | Sildenafil |
| Purpose | Treatment of erectile dysfunction (ED) |
| Mechanism of Action | Inhibits phosphodiesterase type 5 (PDE5), increasing blood flow to the penis during sexual stimulation |
| Dosage Forms | Oral tablets |
| Available Strengths | 25 mg, 50 mg, 100 mg |
| Dosage Frequency | As needed, approximately 1 hour before sexual activity; do not exceed one dose per day |
| Common Side Effects | Headache, flushing, nasal congestion, abnormal vision (blurred vision, changes in color vision), back pain |
| Serious Side Effects | Sudden vision loss, sudden hearing loss, chest pain, prolonged erection (priapism) lasting more than 4 hours |
| Drug Interactions | Nitrates (e.g., nitroglycerin), alpha-blockers (e.g., terazosin), other PDE5 inhibitors (e.g., tadalafil), some antifungal medications (e.g., ketoconazole), some antibiotics (e.g., erythromycin) |
| Important Notes | Do not take with nitrates due to risk of severe hypotension. Seek immediate medical attention if you experience sudden vision or hearing loss, or an erection lasting longer than 4 hours. Use with caution if you have heart conditions. |
| Storage | Store at room temperature away from moisture and light |
| Missed Dose | Viagra is taken as needed, so there is no “missed dose” to worry about. |
| Alternatives | Cialis (tadalafil), Levitra (vardenafil), Stendra (avanafil) |
Viagra Alternatives
| Medication | Mechanism of Action | Notes |
|---|---|---|
| Cialis (tadalafil) | PDE5 inhibitor | Longer duration of action (up to 36 hours); available in daily and as-needed formulations. |
| Levitra (vardenafil) | PDE5 inhibitor | Similar to Viagra, but may have slightly faster onset of action. |
| Stendra (avanafil) | PDE5 inhibitor | May have a faster onset of action and fewer side effects compared to Viagra. |
| Sildenafil(Generic) | PDE5 inhibitor | The generic version of Viagra, offering the same efficacy at a potentially lower cost. |
Viagra Side Effects
| Common Side Effects | Serious Side Effects |
|---|---|
| Headache | Sudden vision loss (NAION) |
| Flushing | Sudden hearing loss |
| Nasal congestion | Chest pain (angina) |
| Abnormal vision (blurred vision, changes in color vision) | Prolonged erection (priapism) – lasting more than 4 hours |
| Back pain | Seizures |
Viagra Dosage Guide
| Condition | Starting Dose | Maintenance Dose | Administration Notes |
|---|---|---|---|
| Erectile Dysfunction | 50 mg | 25 mg – 100 mg (adjust based on effectiveness and tolerance) | Take approximately 1 hour before sexual activity. Do not exceed one dose per day. |
Viagra Price With And Without Insurance
| Purchase Context | Estimated Price |
|---|---|
| With Insurance | $5 – $10 Per Pill |
| Without Insurance (U.S.) | $65 – $140 Per Pill |
| From Canada | $14 Per Pill |
