
Viagra (Sildenafil) from Canada Drugs









Comprehensive Overview
Viagra Indications:
Chemical Classification: SILDENAFIL (sil-DEN-a-fil)
Viagra is a widely recognized prescription drug intended to treat erectile dysfunction (ED) in men. The condition of ED is prevalent amongst countless men and can impose challenges in personal relationships. The mechanism of Viagra involves enhancing blood circulation to the penis, facilitating the maintenance of an erection after stimulation. It's crucial to recognize that while Viagra promotes the physical response, it does not independently trigger an erection; it only enhances the body's natural reaction to sexual arousal.
In Canada, Viagra is an approved medication, enabling men to procure it through lawful prescriptions. Opting for generic Viagra online usually streamlines the process and presents a budget-friendly option compared to brand-name Viagra.
Comparing Generic Viagra and Brand Viagra
Generic Viagra serves as a valid and effective alternative for men experiencing erectile dysfunction. Studies have indicated that it shares equivalent efficacy with the branded version while being more cost-effective. Like its branded equivalent, generic Viagra adheres to the guidelines established by Health Canada and must be prescribed by a qualified healthcare provider.
Product Information Table |
|
Chemical Composition |
C22H30N6O4S |
Regulatory Approval |
US FDA Approved |
Bioavailability |
41% |
Prescription Status |
Prescription-Only |
Chemical Name |
Sildenafil |
Half-Life |
3–4 hours |
Available Dosages |
25mg, 50mg, 100mg |
Pregnancy Safety |
Consult Your Doctor |
Brand Name |
Viagra |
Protein Binding |
96% |
PubChem ID |
5212 |
MedlinePlus Identifier |
a699015 |
ChEBI ID |
9139 |
ATC Code |
G04BE03 |
DrugBank ID |
DB00203 |
KEGG Database ID |
D08514 |
Administration Route |
Oral |
Using Viagra Safely
Research shows that over 80% of men who utilize Viagra, whether sourced from a physical pharmacy or online marketplace, achieve the expected results. When considering to purchase Viagra, it is important to remember that the appropriate dosage and usage instructions may vary depending on personal health conditions and individual responses to the medication.
The ideal way to take Viagra is to consume it roughly one hour before planned sexual activity. It should be taken whole with a full glass of water. It is vital not to exceed the prescribed dosage, as doing so could lead to severe health complications, including dangerously low blood pressure.
Generally, the effects begin within 30 minutes to an hour, although it might be delayed if taken after consuming a heavy meal. For best results, it is advisable to take Viagra on an empty stomach.
Dosage Guidance for Viagra
The most common dosage of Viagra prescribed is 50mg and typically taken about an hour before engaging in sexual activity. Some patients may find the lower dosage of 25mg effective, while others may need to increase the dose to the maximum of 100mg. It is crucial to stick to the guideline of not exceeding one dose in a 24-hour period.
If you have any doubts concerning your dosage or whether Viagra is suitable for your condition, please discuss your concerns with your healthcare professional to receive tailored advice.
Precautions Before Taking Viagra
Prior to using Viagra, it’s essential to communicate any pre-existing medical conditions with your healthcare provider. Conditions that may prohibit the use of Viagra encompass:
- Concurrent use of nitrates or guanylate cyclase stimulators
- Significant cardiovascular issues
- HIV/AIDS
- Irregular heart rhythms
- History of heart attacks or strokes
- Significant fluctuations in blood pressure
- Peyronie’s disease and penile deformities
- Liver or renal dysfunctions
Always seek guidance from your doctor before modifying your dosage or treatment plan.
Potential Side Effects of Viagra
Viagra is generally well-tolerated, yet there is a chance of experiencing side effects. Most side effects are mild and temporary; however, they should be monitored closely. If you encounter severe or persistent side effects, seek immediate help from your healthcare provider. Common side effects associated with Viagra include:
- Headaches
- Flushing (redness and warmth)
- Nasal congestion
- Upset stomach
- Changes in vision (like a bluish tint or increased sensitivity to light)
- Chest pain
- Dizziness or lightheadedness
- Prolonged erections (a condition known as priapism)
Drug interactions may alter the efficacy or elevate the risks associated with Viagra usage. Always refer to the informational materials provided with your medication for detailed interaction guidance.
When used correctly, Viagra can effectively assist men in overcoming challenges related to ED. Always consult your healthcare provider to determine if this medication is appropriate for your individual needs.
Dr. Conor Sheehy
About Dr. Conor Sheehy (Page Author)
Dr. Sheehy (BSc Molecular Biology, PharmD) is a clinical pharmacist with expertise in cardiology, oncology, and patient care management. His extensive knowledge in customizing medication therapies ensures that patients achieve optimal health outcomes. Read More...
IMPORTANT NOTE: The content provided above is purely informational and educational. It should not be utilized for self-diagnosis or self-treatment, nor is it a substitute for professional medical advice. Always consult a healthcare professional regarding the safety, suitability, and correct usage of any medication for yourself or your pet.