Viafil 50mg Tablet
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What is Viafil 50mg Used For?
- Viafil 50mg is a standard-dose Sildenafil Citrate tablet by Weefsel Pharma, prescribed for:
- Moderate Erectile Dysfunction – Most commonly used starting dose for men with reliable, moderate ED symptoms.
- Consistent Erectile Response – Balances efficacy and tolerability as the clinical first-line oral ED dose.
- Upgrade from 25mg – Recommended when 25mg provides insufficient erection quality or duration.
How Does Viafil 50mg Work?
- Viafil 50mg contains Sildenafil Citrate, a phosphodiesterase-5 (PDE-5) inhibitor that:
- Blocks PDE-5 activity in corpus cavernosum smooth muscle, maintaining elevated cGMP during arousal.
- Enhances penile arterial vasodilation and blood trapping for sustained, firm erections.
- Works exclusively during sexual stimulation — no arousal, no erection response.
How to Use Viafil 50mg
Dosage: One 50mg tablet taken orally 30–60 minutes before sexual activity.
Timing: Peak effect 60–90 minutes post-ingestion; duration 4–6 hours.
Precaution: One dose per 24 hours. Avoid nitrates, excessive alcohol, grapefruit, and high-fat meals. Inform physician of all concurrent medications.
Side Effects of Viafil 50mg
Common Side Effects: Headache, flushing, nasal congestion, indigestion, back pain, mild visual changes.
Serious Side Effects (seek medical help): Sudden vision or hearing loss, chest pain, severe hypotension, priapism (erection lasting more than 4 hours).
Viafil Dosage Comparison Guide
| Strength | Best For | Onset | Duration | Link |
|---|---|---|---|---|
| 25 mg | Lower strength option | 30–60 min | 4–6 hrs | View → |
| 50 mg | Standard strength option | 30–60 min | 4–6 hrs | Current |
| 100 mg | Popular strength option | 30–60 min | 4–6 hrs | View → |
| 150 mg | Higher strength option | 30–60 min | 4–6 hrs | View → |
| 200 mg | Maximum strength variant | 30–60 min | 4–6 hrs | View → |
* Always consult your doctor before changing your dosage. This information is for educational reference only.
Drug Interactions — Important Information
| Drug / Substance | Interaction Type | Risk Level | Action Required |
|---|---|---|---|
| Nitrates (e.g., GTN, isosorbide) | Severe hypotension | 🔴 Absolute Contraindication | Do NOT combine — risk of fatal BP drop |
| Other PDE-5 inhibitors | Additive vasodilation | 🔴 Contraindicated | Never combine two PDE-5 inhibitors |
| Alpha-blockers (e.g., tamsulosin) | Additive hypotension | 🟠 Serious | Use only under physician supervision |
| Ritonavir / HIV protease inhibitors | CYP3A4 inhibition — raises sildenafil plasma level | 🟠 Serious | Reduce sildenafil dose; physician supervision required |
| Ketoconazole / Itraconazole | CYP3A4 inhibition | 🟡 Moderate | Avoid or reduce dose |
| Alcohol (heavy use) | Enhances vasodilation | 🟡 Moderate | Limit alcohol consumption |
| Grapefruit juice | CYP3A4 inhibition — slows sildenafil clearance | 🟡 Moderate | Avoid grapefruit while taking sildenafil |
Always inform your doctor about all medications, supplements, and recreational substances you are taking before starting this medication. This list is not exhaustive.
Frequently Asked Questions
Q1: What is Viafil 50mg used for?
Viafil 50mg contains Sildenafil Citrate 50mg and is used to treat erectile dysfunction in men. The 50mg dose is typically the first prescribed dose for men with moderate ED, offering a balance of efficacy and tolerability.
Q2: How does Viafil 50mg work in the body?
Sildenafil in Viafil 50mg inhibits the PDE-5 enzyme, preventing breakdown of cGMP in penile smooth muscle. This sustains vasodilation during sexual stimulation, enabling blood flow sufficient for firm erections.
Q3: How quickly does Viafil 50mg work?
Viafil 50mg typically begins working within 30 to 60 minutes. An empty stomach or light meal speeds up absorption. Peak effects occur approximately 60 to 90 minutes after ingestion.
Q4: How long do the effects of Viafil 50mg last?
Effects generally last 4 to 6 hours. Within this window, multiple erections can be achieved with sexual stimulation. The medication wears off gradually as plasma sildenafil concentration declines.
Q5: Is Viafil 50mg suitable for occasional use?
Yes. Viafil 50mg is an on-demand medication taken only when sexual activity is anticipated. It does not need to be taken daily and is effective when used as needed.
Q6: What should I eat before taking Viafil 50mg?
A light meal or empty stomach is preferred. High-fat meals delay absorption and can reduce early effectiveness. Avoid grapefruit juice, which inhibits sildenafil's metabolism and can cause unpredictable effects.
Q7: What are the side effects of Viafil 50mg?
Common side effects include headache, facial flushing, nasal congestion, indigestion, back pain, and mild visual changes. Most are temporary and resolve within a few hours of taking the tablet.
Q8: Can I take Viafil 50mg if I have high cholesterol?
High cholesterol is an indirect risk factor for ED. Viafil 50mg can be used alongside cholesterol-lowering statins without significant interaction, but always confirm with your physician.
Q9: What happens if Viafil 50mg is not effective?
If 50mg provides insufficient results after several attempts under proper conditions, consult your doctor about increasing to 100mg or investigating underlying causes such as hormonal imbalances or arterial disease.
Q10: Can Viafil 50mg be taken with antidepressants?
Some antidepressants may cause sexual dysfunction themselves. Sildenafil interactions with SSRIs are generally limited, but inform your doctor of all medications for a complete safety assessment.
Q11: How often can Viafil 50mg be taken?
No more than once per 24 hours. If you require ED treatment more frequently, discuss daily tadalafil therapy with your physician as a more appropriate option.
Q12: Is a prescription required for Viafil 50mg?
Yes. Sildenafil requires a prescription in most countries. A medical evaluation ensures there are no cardiovascular or medication contraindications before starting treatment.
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Clinical References
This product information is supported by peer-reviewed clinical evidence:
- Goldstein I, et al. (1998). Oral sildenafil in the treatment of erectile dysfunction. New England Journal of Medicine, 338(20), 1397–1404. [PubMed: 9580646]
- Burnett AL, et al. (2018). Erectile Dysfunction: AUA Guideline. Journal of Urology, 200(3), 633–641. [PubMed: 29746858]
- Hatzimouratidis K, et al. (2010). EAU Guidelines on Male Sexual Dysfunction. European Urology, 57(5), 804–814. [PubMed: 20189712]
- Lue TF. (2000). Erectile Dysfunction. New England Journal of Medicine, 342(24), 1802–1813. [PubMed: 10853004]
Disclaimer
The information provided on Medionix Pharma is intended for general informational purposes only. It should not be considered as medical advice, diagnosis, or treatment. Always consult a qualified healthcare professional before using any medication or starting any treatment.
Medionix Pharma does not encourage self-medication. Customers are responsible for ensuring that purchases comply with local laws and prescription requirements in their country. If you have any questions or concerns regarding the content on our website, please contact us at sales@medionixpharma.com.