Viafil 150mg Tablet
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What is Viafil 150mg Used For?
- Viafil 150mg is a high-dose Sildenafil Citrate tablet by Weefsel Pharma, prescribed for:
- Resistant Erectile Dysfunction – For men with persistent ED not adequately controlled by standard 100mg sildenafil.
- Enhanced Vascular Support – Delivers stronger pharmacological action for significant underlying penile arterial compromise.
- Supervised Dose Escalation – Used only when 100mg has been tried, tolerated, and found clinically insufficient.
How Does Viafil 150mg Work?
- Viafil 150mg provides an elevated sildenafil dose that:
- Produces supra-maximum PDE-5 inhibition compared to the standard 100mg clinical dose.
- Delivers prolonged smooth muscle relaxation and maximised corporal blood flow during sexual stimulation.
- Remains arousal-dependent — sexual stimulation is necessary to initiate vascular response.
How to Use Viafil 150mg
Dosage: One 150mg tablet 30–60 minutes before sexual activity, under physician supervision only.
Timing: Onset 30–60 minutes; duration up to 6 hours.
Precaution: Above guideline dose requiring medical oversight. Contraindicated with nitrates and alpha-blockers. Avoid alcohol and grapefruit.
Side Effects of Viafil 150mg
Common Side Effects: Intense headache, significant flushing, nasal congestion, GI upset, pronounced visual disturbances, dizziness.
Serious Side Effects (seek medical help): Severe hypotension, priapism, sudden vision or hearing loss, chest pain.
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 | View → |
| 100 mg | Popular strength option | 30–60 min | 4–6 hrs | View → |
| 150 mg | Higher strength option | 30–60 min | 4–6 hrs | Current |
| 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 150mg used for?
Viafil 150mg contains Sildenafil Citrate 150mg, a high-dose formulation for men with severe or treatment-resistant erectile dysfunction who have not achieved adequate results with the standard 100mg dose.
Q2: Is 150mg sildenafil safe?
Viafil 150mg exceeds standard clinical dosing guidelines (maximum 100mg/day) and carries a higher risk of side effects. It should only be used under direct physician supervision after thorough cardiovascular assessment.
Q3: How long does Viafil 150mg take to work?
Onset is typically 30 to 60 minutes, consistent with standard doses. Higher plasma concentration from the 150mg dose may produce more rapid or intense vascular response.
Q4: How long do the effects of Viafil 150mg last?
Effects can last up to 6 hours, and may persist slightly longer than 100mg due to higher plasma drug levels. Always maintain a minimum 24-hour gap between doses.
Q5: What additional risks does Viafil 150mg carry compared to 100mg?
Risks of headache, flushing, hypotension, and priapism are proportionally higher at 150mg. Cardiovascular strain is significantly greater, making pre-treatment cardiac evaluation essential.
Q6: Who should not take Viafil 150mg?
Men taking nitrates, those with severe cardiovascular disease, significant hepatic or renal impairment, retinitis pigmentosa, recent cardiac events, or those without medical supervision must not take Viafil 150mg.
Q7: Can Viafil 150mg be split into a 75mg dose?
Splitting tablets to create 75mg doses is not recommended without physician advice. Both doses exceed the 50mg standard starting dose, and any dose above 100mg requires specialist oversight.
Q8: What should I do if I experience severe headache with Viafil 150mg?
Lie in a dark, quiet room. Stay hydrated. Contact your doctor about the severity. If accompanied by chest pain, vision changes, or extreme dizziness, seek emergency medical care immediately.
Q9: Does Viafil 150mg treat premature ejaculation?
No. Viafil 150mg is exclusively for erectile dysfunction. It has no action on ejaculation timing. Dapoxetine-containing products are used for premature ejaculation.
Q10: Can Viafil 150mg be combined with alcohol?
No. Alcohol is contraindicated with Viafil 150mg. The combination greatly amplifies hypotensive effects, creating serious risks of syncope and cardiovascular events.
Q11: Is priapism more likely with Viafil 150mg?
Yes. Higher sildenafil doses increase the risk of priapism proportionally. Any erection persisting beyond 4 hours requires immediate emergency treatment to prevent permanent penile damage.
Q12: Do I need a prescription for Viafil 150mg?
Yes. Viafil 150mg is an above-guideline dose requiring a prescription and active physician oversight throughout use.
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Customer Reviews
Nathan G.
Spain · 4 months ago
“Reasonable delivery to Spain — about 14 days. Product is exactly as described, tablets look and work authentic.”
Daniel F.
Australia · 3 weeks ago
“Good delivery time — 11 days to Sydney. Packaging was plain and discreet. Product quality matches the description exactly.”
Andrew P.
Netherlands · 6 weeks ago
“Delivery took about 13 days to the Netherlands. Tablets were in original sealed blisters. No issues with customs at all.”
Brian K.
Australia · 3 months ago
“Packaging was incredibly discreet. Tablets are sealed with lot number and manufacturing date visible. Genuine product.”
Luke H.
UK · 4 months ago
“Ordered Vidalista 20mg. Arrived in 9 days to London. Completely plain packaging with no indication of contents.”
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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.