Viafil 25mg Tablet
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What is Viafil 25mg Used For?
- Viafil 25mg is a low-dose Sildenafil Citrate tablet by Weefsel Pharma, indicated for:
- Mild Erectile Dysfunction – Suitable for men with occasional or mild erection difficulties seeking a gentle introduction to sildenafil therapy.
- Elderly and Sensitive Patients – 25mg is the preferred starting dose for men over 65 or those with mild organ impairment.
- Dose-Finding Initiation – Used to establish individual sildenafil tolerance before considering dose escalation.
How Does Viafil 25mg Work?
- Viafil 25mg contains Sildenafil Citrate, a selective PDE-5 inhibitor that:
- Prevents degradation of cGMP in penile smooth muscle, allowing vasodilation to persist during sexual stimulation.
- Promotes increased arterial blood flow into the corpus cavernosum for firm, reliable erections.
- Requires sexual arousal to activate — will not produce erections without stimulation.
How to Use Viafil 25mg
Dosage: One 25mg tablet taken orally 30–60 minutes before sexual activity.
Timing: Onset within 30–60 minutes; effects last 4–6 hours.
Precaution: Do not exceed one tablet per 24 hours. Avoid high-fat meals, alcohol, and nitrates. Report all medications to your physician before use.
Side Effects of Viafil 25mg
Common Side Effects: Mild headache, facial flushing, nasal congestion, indigestion, dizziness.
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 | Current |
| 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 | 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 25mg used for?
Viafil 25mg contains Sildenafil Citrate 25mg and is used to treat mild to moderate erectile dysfunction. It is the recommended starting dose for older men, those with mild health conditions, or those new to sildenafil.
Q2: Who manufactures Viafil 25mg?
Viafil 25mg is manufactured by Weefsel Pharma, an Indian pharmaceutical company producing quality generic ED medications for international markets.
Q3: How long does Viafil 25mg take to work?
Viafil 25mg typically starts working within 30 to 60 minutes. Taking it on an empty stomach or after a light meal ensures the fastest and most reliable onset of effects.
Q4: How long do the effects of Viafil 25mg last?
Effects last approximately 4 to 6 hours, allowing for natural sexual activity within this window. The medication does not cause a continuous erection throughout the entire duration.
Q5: Is Viafil 25mg effective for first-time sildenafil users?
Yes. The 25mg dose is specifically recommended for first-time users to assess individual response and tolerability before considering dose escalation to 50mg or 100mg if needed.
Q6: Can Viafil 25mg be taken with food?
Yes, with or without food. For fastest absorption, a light or empty stomach is preferred. High-fat meals significantly delay sildenafil absorption and can reduce early-window effectiveness.
Q7: What side effects does Viafil 25mg cause?
At 25mg, side effects are typically mild: headache, flushing, nasal stuffiness, and indigestion. These usually resolve within a few hours without treatment.
Q8: Is Viafil 25mg safe with blood pressure medications?
Inform your doctor of all blood pressure medications before taking Viafil 25mg. Sildenafil can interact with alpha-blockers and antihypertensives, causing additive blood pressure lowering.
Q9: What if Viafil 25mg doesn't work?
If 25mg proves insufficient after several attempts, consult your doctor. They may recommend increasing to 50mg, or investigating whether underlying health conditions (diabetes, hormonal issues) are affecting response.
Q10: Can Viafil 25mg cause erections without sexual stimulation?
No. Viafil 25mg requires sexual arousal to produce erections. The drug enhances the body's natural erectile response but cannot initiate erections in the absence of stimulation.
Q11: How often can Viafil 25mg be taken?
No more than once every 24 hours. Regular use beyond this limit increases side effect risk without improving efficacy. If 25mg is consistently insufficient, speak to your doctor.
Q12: Do I need a prescription for Viafil 25mg?
Yes. Sildenafil is a prescription medicine. A medical consultation ensures the dose is appropriate and safe for your health profile, particularly regarding cardiovascular conditions.
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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.