Substances to avoid or monitor while on Sildenafil. Sildenafil may interact with nitrate medications, alpha-blockers, and certain antifungal or antibiotic drugs.

Dosage Instructions of Sildenafil

This causes relaxation of smooth muscle in blood vessels, allowing improved blood flow. This mechanism is central to how Sildenafil functions pharmacologically. Common and serious reactions reported with Sildenafil use. Common side effects include headache, flushing, indigestion, nasal congestion, and dizziness. Serious side effects are rare but can include sudden vision changes, prolonged erections, or severe allergic reactions. These interactions can affect blood pressure or drug levels, so inform your healthcare provider of all medications and supplements you are taking. How to keep Sildenafil tablets safe and effective. Store Sildenafil tablets at room temperature, between 15°C and 30°C, away from moisture and direct light.

Product	Dosage	Quantity + Bonus	Price
Viagra Generic	150mg	120 + 8 Pills	177.58€ 169.12€	Buy
Viagra Generic	150mg	90 + 6 Pills	147.18€ 140.17€	Buy
Viagra Generic	50mg	10 Pills	26.87€ 25.59€	Buy
Kamagra Polo	100mg	32 Pills	125.88€ 119.89€	Buy
Viagra Generic	150mg	180 + 10 Pills	236.46€ 225.20€	Buy
Viagra Generic	200mg	90 + 6 Pills	170.79€ 162.66€	Buy
Kamagra Soft Tabs	100mg	60 + 4 Pills	180.59€ 171.99€	Buy
Kamagra Oral Jelly	100mg	90 + 8 Sachets	303.56€ 289.10€	Buy
Kamagra	100mg	60 + 4 Pills	201.34€ 191.75€	Buy
Viagra Generic	150mg	10 Pills	36.73€ 34.98€	Buy
Kamagra Oral Jelly	100mg	63 + 7 Sachets	224.18€ 213.50€	Buy
Kamagra Polo	100mg	120 + 6 Pills	327.15€ 311.57€	Buy
Viagra Generic	25mg	360 + 10 Pills	213.68€ 203.50€	Buy
Viagra Generic	50mg	360 + 10 Pills	225.33€ 214.60€	Buy
Viagra Generic	150mg	30 + 2 Pills	72.32€ 68.88€	Buy

Do not use tablets past the expiration date indicated on the packaging. 1• Sildenafil is a PDE5 inhibitor available in Canada as Viagra® and Revatio®. 2• It works by relaxing blood vessels to improve blood flow.

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Contact your doctor promptly if any side effects are persistent, worsening, or concerning, or if you experience any other concerning symptoms. • Flushing (redness or warming of the face, neck, or chest) • Vision changes, which can include seeing a slight blue tinge to objects, blurred vision, or increased light sensitivity • Hypotension (low blood pressure), which may cause light-headedness or fainting Serious or rare side effects: These are rare but potentially severe side effects. Seek immediate medical attention or call emergency services if you experience any of the following: • A sudden decrease or loss of hearing, sometimes with ringing in the ears and dizziness. • A sudden decrease or loss of vision in one or both eyes. • Chest pain or other symptoms of a heart attack (like pain spreading to the jaw or shoulder) or stroke, especially during sexual activity.

Low blood pressure

• Priapism: An erection that is painful or lasts for more than four hours. This can cause permanent damage to the penis if not treated right away. • Temporary decreased blood flow to parts of the brain (transient ischemic attack) • Severe Allergic Reaction: Symptoms like swelling of the face, lips, tongue, or throat, or trouble breathing. Viagra should not be used under the following conditions: • A known hypersensitivity or allergic reaction to sildenafil or any of its ingredients. • The risk of severe, life-threatening hypotension (dangerously low blood pressure).

Raynaud's phenomenon

o Nitrates (e.g., nitroglycerin, isosorbide dinitrate, or isosorbide mononitrate) include: Recreational drugs known as "poppers" (alkyl nitrites). Tell your doctor about your medical conditions, past and present, before starting Viagra. This is crucial because certain conditions can affect whether Viagra is right for you. These conditions may include, but are not limited to: • Anatomical deformity of the penis (such as angulation, cavernosal fibrosis, or Peyronie's disease), as this increases the risk of a prolonged erection (priapism). • Any medical conditions that predispose you to priapism, such as leukemia, multiple myeloma, or sickle cell anemia. 3• Available in oral tablets in 25 mg, 50 mg, and 100 mg strengths.

• Canada has strict laws governing the import and export of pharmaceuticals.
• Travelers can bring a 90-day supply for personal use with a prescription.
• Shipping prescription drugs from Canada to other countries is often illegal.
• U.S. citizens can personally import a limited supply under FDA guidance.
• Mail-order imports by individuals may be detained by customs.
• Laws are complex and subject to change; verify before traveling or ordering.
• The CBSA (Canada Border Services Agency) enforces import rules.

4• Common side effects include headache and flushing; serious effects are rare. 5• Not to be combined with nitrates or certain other drugs. 7• Store at room temperature, away from moisture and light.

Brand Name	Manufacturer	Dosage Forms	Price Range (CAD)
Viagra	Pfizer	Tablets 25 mg, 50 mg, 100 mg	20–60 per tablet
Sildenafil Accord	Accord Healthcare	Tablets 50 mg	15–45 per tablet
Sildenafil Sandoz	Sandoz	Tablets 20 mg, 50 mg	18–50 per tablet
Kamagra	Ajanta Pharma (imported)	Tablets 100 mg	Varies, often unlicensed

Through Jack Health, you can get clinician-prescribed ED treatments—like Sildenafil—delivered discreetly to your door, with licensed Canadian healthcare providers overseeing your care Dosage: 25mg, 50mg, or 100mg tablets / pills * A prescription will only be written if deemed appropriate after digital consultation with a licensed medical provider.

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Any unexpected symptoms should prompt immediate medical attention. Health Canada warnings and precautions for Sildenafil users. Health Canada advises caution when using Sildenafil in patients with cardiovascular conditions, low blood pressure, or those taking nitrates. It is contraindicated with nitrate medications due to risk of severe hypotension. Always disclose your full medical history to your doctor before use. Connect with a licensed practitioner in minutes and get your Sildenafil prescription approved and delivered - no clinic visits, no waiting rooms.

Drug Class	Common Drugs	Effect	Notes
Nitrates	Nitroglycerin	Severe hypotension	Contraindicated
Alpha-blockers	Tamsulosin, Doxazosin	Increased hypotensive effect	Use with caution, start at lowest dose
CYP3A4 inhibitors	Ketoconazole, Itraconazole	Increased sildenafil levels	May increase side effect risk
Other ED medications	Tadalafil, Vardenafil	Enhanced effect	Risk of hypotension

Chat with a licensed practitioner online to assess if Sildenafil is right for you. If approved, receive a tailored Sildenafil prescription with clear usage instructions.

Medical Condition	Description	Typical Dosage	Approved Age Range
Erectile Dysfunction	Improves blood flow for erections	50 mg	18+
Pulmonary Arterial Hypertension	Lowers blood pressure in lungs	20 mg, 40 mg	18+
Raynaud's Phenomenon	Treats blood vessel spasms	Under study	18+
Altitude Sickness	Off-label use for high altitude	Off-label	Adults only

Pharmacy delivers Sildenafil at your doorstep in plain packaging.

• Sildenafil is also researched for potential use in pulmonary hypertension treatment.
• Canadian clinical trials have contributed to understanding sildenafil’s safety.
• Sildenafil’s use is contraindicated in individuals with certain heart conditions in Canada.
• Canadian health agencies monitor adverse reactions related to sildenafil usage.
• Education campaigns in Canada promote safe use of erectile dysfunction medications.

Sildenafil is a medication used to treat erectile dysfunction. Sildenafil comes in 25 mg, 50 mg or 100 mg strengths. Sildenafil works for 4 hours after taking it. Sildenafil works by relaxing muscles and promoting blood flow in the body, particularly to the penis.

What is Sildenafil used for?

The information on this page is sourced from independent third parties contracted by CanadaPharmacyOnline. While we cannot guarantee its medical accuracy, we strongly recommend consulting a healthcare professional for personalized advice regarding medications or medical conditions. Prescriptions Dispensed from Canada are Dispensed by Candrug Pharmacy #18985. 202A 8322-130th Street, Surrey, British Columbia, Canada V3W 8J9, 604-543-8711. This pharmacy is duly licensed in the province of British Columbia, Canada by the College of Pharmacists of BC.

Recreational use

If you have any questions or concerns you can contact the college at: 200-1765 West 8th Ave Vancouver, BC V6J 5C6 Canada. Disclaimer: This article is for informational purposes only and does not constitute medical advice. It is not intended to be a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of a physician or other qualified health provider with any questions you may have regarding a medical condition. A summary of Sildenafil’s pharmaceutical identity and competing brands in Canada.

Get your treatment plan

Sildenafil is the active ingredient in Canadian brands Viagra® and Revatio®. Viagra® is widely recognized for its role as a PDE5 inhibitor. Revatio® contains the same active component but is marketed for different dosing and indications. Other Canadian brands with the same active ingredient may be available as generics, offering similar pharmaceutical effects. Available Sildenafil formats in Canada for patient use. This can lead to an erection when sexually stimulated.

Adverse effects

In Canada, Sildenafil is available in oral tablet form. Tablets typically come in strengths such as 25 mg, 50 mg, and 100 mg. These tablets are designed for oral administration and are intended to be swallowed whole. Key safety tips for taking Sildenafil properly. Sildenafil tablets should be taken exactly as prescribed by a healthcare professional.

Product Details

It is important not to exceed the recommended dose. Taking it with or without food is acceptable, but high-fat meals may delay absorption. Always consult a doctor before starting or 50 mg sildenafil price changing dosage. How Sildenafil works at the biological level to affect blood flow. Sildenafil blocks the enzyme phosphodiesterase type 5 (PDE5), which leads to increased levels of cyclic guanosine monophosphate (cGMP). Sildenafil is used to treat erectile dysfunction (ED), which is the inability to get or keep an erection firm enough for sexual activity.

• The patent expiration allowed multiple companies to produce generics.
• This increased competition, leading to lower prices for consumers.
• Generic drug approval in Canada requires proof of bioequivalence.
• The Patented Medicine Prices Review Board (PMPRB) regulates brand-name prices.
• Generic substitution by pharmacists is a common, accepted practice.
• Patients can request either the brand or generic, subject to coverage.
• The market is consistently supplied by numerous manufacturers.

Take sildenafil about 30 to 60 minutes before sexual activity, as needed.

Warnings & Precautions

• Bleeding disorders or an active peptic ulcer. • Cardiovascular disease, including a history of stroke, heart attack, life-threatening irregular heartbeat, or severe heart failure within the last six months • Certain severe eye conditions, such as non-arteritic anterior ischemic optic neuropathy (NAION) or retinitis pigmentosa. • High or low blood pressure that is uncontrolled. Provide your doctor with a complete list of all your medications, including prescriptions, over-the-counter drugs, vitamins, and herbal supplements. • Alpha-Blockers (used for high blood pressure or enlarged prostate, e.g., prazosin, doxazosin, tamsulosin): This combination can increase the risk of low blood pressure (hypotension), dizziness, or fainting.

Customer Support & Pharmacy Information

Sildenafil should typically be initiated at a low dose after stable alpha-blocker therapy is established. • Antifungals (e.g., ketoconazole, itraconazole): These medications inhibit the enzyme that breaks down sildenafil, leading to increased drug concentration in the body and a higher risk of side effects. • Blood Pressure Medications (other classes, e.g., ACE inhibitors, ARBs, Calcium Channel Blockers): Sildenafil's effect of widening blood vessels may be additive with these drugs, potentially causing a greater drop in blood pressure. • CYP3A4 Inhibitors (e.g., the antibiotic erythromycin, the HIV medication ritonavir): These potent enzyme inhibitors slow the metabolism of sildenafil, raising its levels in the bloodstream and increasing the risk and severity of side effects. A lower dose of sildenafil is often required.

Licensed practitioner consultation

• Grapefruit Juice: This beverage can inhibit the enzyme that processes sildenafil, increasing the drug's concentration in the body and raising the risk of side effects. It is generally advised to avoid or limit consumption. • Nitrates (e.g., nitroglycerin, isosorbide dinitrate, or isosorbide mononitrate, including street drugs known as "poppers"): This combination is strictly contraindicated (must never be used) because it can cause a severe, life-threatening drop in blood pressure. • Other PDE5 Inhibitors (e.g., tadalafil, vardenafil, avanafil): Combining these medications can dangerously amplify their effects, leading to a higher risk of severe side effects like profound low blood pressure and prolonged erection (priapism). • Soluble Guanylate Cyclase (sGC) Stimulators (e.g., riociguat): This combination is strictly contraindicated (must never be used) as it can lead to a dangerously severe drop in blood pressure. It can be taken with or without food, but if taken with a high-fat meal, it may take longer to start working.