Sivextro – what you need to know about its generic
| | Sivextro (brand) | Generic |
|---|---|---|
| Active ingredient | Sildenafil citrate | Sildenafil citrate |
| Common brand names | Sivextro, Viagra, Revatio (for pulmonary arterial hypertension) | – |
| Typical dose (ED) | 25 mg, 50 mg, or 100 mg taken 30–60 min before sexual activity | Same – 25 mg, 50 mg, 100 mg tablets or capsules |
| Form | 25 mg, 50 mg, 100 mg tablets | Same – 25 mg, 50 mg, 100 mg tablets or capsules (also soft‑gel in some markets) |
| How it works | Blocks phosphodiesterase‑5 (PDE‑5) → increases blood flow to the penis during sexual stimulation | Same mechanism |
| Who should not use | • Severe liver or kidney impairment < 30 % predicted function
• Taking nitrates (nitroglycerin, isosorbide dinitrate, etc.)
• Severe hypotension, recent stroke or heart attack, certain heart conditions | Same contraindications |
| Side effects | Common: headache, flushing, indigestion, nasal congestion, dizziness, visual changes (blue‑tinted vision), back pain
Rare: priapism (prolonged erection >4 h), sudden vision loss, hearing loss | Same profile |
| Interactions | • Nitrates (nitroglycerin, isosorbide dinitrate, isosorbide mononitrate)
• Alcohol (may increase hypotensive effect)
• Some anti‑fungals, HIV protease inhibitors, rifampin | Same – avoid nitrates & be careful with alcohol; watch for CYP3A4‑interacting drugs |
| How it’s sold | In the U.S. and many other countries, it’s available under the brand name Sivextro as well as Viagra (US). | Generic sildenafil is sold under many brand names (Cialis‑Cialis? no, that's tadalafil; generic sildenafil is often called “Sildenafil” or “Viagra C” in some countries). In the U.S. the generic is usually just sold as “Sildenafil” (e.g., “Sildenafil 50 mg tablets”). |
| Price | Brand price varies: 25 mg tablets $25–$40; 50 mg $50–$70; 100 mg $75–$100 (per tablet). | Generic price is much lower: 25 mg $5–$10; 50 mg $10–$20; 100 mg $15–$25 (per tablet), depending on pharmacy and insurance coverage. |
| How to obtain | 1. Prescription: You’ll need a doctor’s prescription (online telehealth visits are common).
2. Dispense: Pharmacy fills the prescription with the brand or generic. | Same – prescription required. Many pharmacies will automatically dispense the generic version if no brand name is specified. |
| Why choose generic? | • Cheaper.
• Same therapeutic effect & safety profile.
• Available in many countries with local brand names. | • Cost‑effective.
• Same efficacy and safety.
• Often covered by insurance or generic substitution policies. |
| Special notes | 1. Revatio: Sildenafil 20 mg tablets used for pulmonary hypertension – different indications.
2. Over‑the‑counter: In some countries (e.g., UK, Canada) generic sildenafil may be available OTC, but still usually requires a prescription in the U.S. | Same – generic sildenafil is prescription‑only in most places, but some countries allow OTC. |
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Quick FAQ
| Question | Answer |
|---|---|
| Is the generic as safe as the brand? | Yes. Generics contain the same active ingredient, dosage, and pharmacokinetics as the brand. Regulatory agencies (FDA, EMA, etc.) require equivalence. |
| Can I mix the brand and generic? | Yes – both contain the same active ingredient, so you can switch between them. |
| Do I need a new prescription for the generic? | Usually not – if a prescription says “Sildenafil 50 mg, take 1 tablet as needed,” the pharmacy can fill it with the generic. |
| How long does the effect last? | Up to 4 hours after taking the dose, though the peak effect is usually around 1 hour. |
| What if I take too much? | Over‑dose is rare but can cause serious side effects like prolonged erections, hypotension, or vision changes. Seek medical help if you think you’ve taken too much. |
| Can I use it with alcohol? | Small amounts may be fine, but heavy drinking can increase side‑effects like dizziness, low blood pressure, or headache. |
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How to Get Your Generic
1. Visit a Doctor or Telehealth Provider
Discuss ED, medical history, and medication list.
Ask for a prescription specifying “Sildenafil 50 mg (generic).”
2. Check Your Pharmacy
Tell them you’d like the generic.
Many pharmacies will automatically dispense the generic if you’re not specifying a brand name.
3. Insurance & Cost
- Check coverage: Most insurance plans cover the generic at a lower co‑pay.
- Without insurance: Generic can be bought in bulk at $10–$25 per tablet.
4. Take as Directed
Take 30–60 min before sexual activity, no more than once daily.
Do not use if you’re taking nitrates or have severe heart disease without a doctor’s guidance.
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Bottom Line
- Sivextro and generic sildenafil are essentially the same medication.
- The generic is cheaper, just as effective, and covered by the same safety guidelines.
- Make sure to get a prescription, verify your medical conditions and drug interactions, and follow dosing instructions carefully.
If you have any more specific questions—like how it interacts with a particular medication you’re on, or how to handle a side‑effect—feel free to ask!