Dose ladder: 10 mg start, 20 mg ceiling
| Plan | Strength | When it fits |
|---|---|---|
| PRN start | 10 mg | About 60 min ahead — max once daily |
| PRN ceiling | 20 mg | Titrate with a clinician |
| Age ≥65 | Consider 5 mg start | Higher exposure with age |
| Child-Pugh B | Start 5 mg, max 10 mg | Child-Pugh C — do not use |
| Dialysis | Do not use | Not a lower-dose workaround |
| Ritonavir / cobicistat | ≤2.5 mg / 72 h | Other strong CYP3A4 caps above |
| Staxyn ODT | 10 mg on the tongue | Different product — see Staxyn section |
Film Levitra strengths are 2.5, 5, 10, and 20 mg. Phosphodiesterase type-5 inhibitors slow the enzyme that breaks down the signal that boosts blood flow into the penis when you are aroused. Sexual stimulation is still required.
FDA Levitra dosing for most adults starts at 10 mg about sixty minutes before sexual activity. The labeled ceiling is 20 mg once daily. The dose may drop to 5 mg for effect or tolerability. Consider a 5 mg start at age 65 or older.
Moderate hepatic impairment (Child-Pugh B) starts at 5 mg and must not exceed 10 mg. Severe hepatic impairment (Child-Pugh C) is a do-not-use. Renal dialysis is also a do-not-use. Mild-to-moderate kidney impairment does not rewrite the usual ladder the way dialysis does.
Strong CYP3A4 inhibitors need hard caps from the same PI. With ritonavir or cobicistat, take no more than 2.5 mg in seventy-two hours. With indinavir, saquinavir, atazanavir, ketoconazole 400 mg daily, itraconazole 400 mg daily, or clarithromycin, take no more than 2.5 mg in twenty-four hours. With ketoconazole 200 mg daily, itraconazole 200 mg daily, or erythromycin, take no more than 5 mg in twenty-four hours. Those 200 mg and 400 mg azole tiers are the FDA Levitra CYP3A4 caps, not a home titration chart. If you are stable on an alpha-blocker for high blood pressure or prostate symptoms, start Levitra at 5 mg (or 2.5 mg when a CYP3A4 cap already applies) and keep the peaks from landing together.
High-fat meal: delayed peak, false failure
FDA Levitra dosing allows the film with or without food. A high-fat plate can still push absorption later and soften the first climb in practice. Judging the night at forty minutes after a heavy dinner often reads like a failed tablet when the peak is still arriving.
You finish a heavy dinner, swallow 20 mg, wait less than an hour, feel little, and reach for a spare. The spare is the wrong fix. Light plate, water, about a full hour, real stimulation — then judge the night. Grease is a frequent reason a first Levitra-class trial looks dead.
A modest alcohol drink with dinner is usually tolerated. A binge on top of a big meal adds hypotension and dulls the arousal the cascade needs. If you already ate, swallow earlier than you planned or accept a delayed window. For a kitchen-clock checklist, open the vardenafil what-to-know brief.
How long: hours, not a weekend
Plan the evening in hours. Levitra's terminal half-life is about four to five hours, so useful coverage stays on a short clock compared with tadalafil's longer stretch. If you climax early, the drug does not vanish on cue — the window is pharmacologic, not a stopwatch tied to orgasm. A second tablet the same night does not buy the next morning.
QT drugs, nitrates, and other absolute holds
Vardenafil's distinctive safety hold is the QT conversation. The FDA Levitra PI and Mayo interaction lists put class IA and III antiarrhythmics — amiodarone, sotalol, quinidine, procainamide, and related rhythm drugs — on the check-before-swallow pile. “May affect the heart” is too soft. Name the class, then stop until a clinician clears the mix.
Nitrates in any form stay absolutely off with vardenafil. That includes nitroglycerin tablets such as Nitrostat, isosorbide, patches, ointment, and inhaled nitrites. Stack them and systemic pressure can fall hard. Chest pain after a Levitra-class dose means the crew hears the tablet name and the hour — and whether a heart attack workup is already underway. Riociguat is a separate absolute stop (soluble guanylate cyclase stimulator), not “another nitrate.”
Alpha-blockers add hypotension risk on a stable schedule with a low start — again, not a homemade peak-split plan. Grapefruit and strong CYP3A4 inhibitors raise exposure. They change the dose conversation, not the nitrate rule.
Staxyn is not swallow-Levitra
Staxyn is vardenafil as an orally disintegrating 10 mg tablet. Mayo lists Staxyn beside Levitra as a US brand name for the same INN. That does not make the products interchangeable on the night. Film Levitra is swallowed with water. Staxyn dissolves on the tongue without water in many directions — still a 10 mg ODT product, not a free pass to treat it like a 20 mg film tablet or to ignore QT and nitrate holds.
If the bottle says Staxyn, follow Staxyn directions. If the bottle says vardenafil film or Levitra, swallow the film. Swapping them because both say vardenafil is how refill notes go wrong. Online shopping for “vardenafil online” still needs the same Rx and license match as any Levitra-class fill.
Is Levitra still available — brand vs generic
People still ask whether Levitra is discontinued. Brand Levitra can be hard to find at US counters while generic vardenafil remains on many wholesaler lists. What that means at the window: the orange film you remember may not be the brand pack. A valid prescription for vardenafil can still fill as generic when the pharmacy stocks it. “Still available” is not “buy without a prescription,” and this page will not quote a made-up cash coupon for a 20×10 bottle.
Side effects that change the next step
Flush, stuffy nose, headache, and dyspepsia are common vasodilation from the same phosphodiesterase pathway that helps blood flow. They often settle after a few honest uses. They don't call for a second tablet the same night.
Back pain or muscle ache shows up for some men on this class. Sudden vision loss, a curtain, or a field cut means stop the class and get care — the serious eye signal is non-arteritic anterior ischemic optic neuropathy (NAION), not a vague “vision problem.” Same urgency for a hearing drop that arrives with the dose. An erection past four hours is an emergency. Ice and hope waste tissue. In the US, Poison Control is 1-800-222-1222 for overdose questions.
Versus sildenafil and tadalafil — short pointer
If your question is the fasting peak and food delay on another molecule, read sildenafil. If you need a longer window and a different nitrate gap, read tadalafil. Stay here for Levitra-class QT checking, high-fat timing on film vardenafil, Staxyn versus swallow tablets, and brand-versus-generic availability.
Online / buy without a cart here
A USA online or mail-order fill still needs a valid prescription and a state-licensed pharmacy. FDA's BeSafeRx campaign is where you match the seller's name before you pay. Walk that check on the Pharmacy Online USA note. This page is education. There is no cart and no fill.
“Levitra online no prescription” tabs fail that gate on purpose. Close them. Price shopping is fine after the license matches — this page will not publish a made-up 20×10 cash number for a coupon month.
FAQ
What is Levitra?
Levitra is the film brand name for vardenafil, a prescription PDE5 inhibitor for erectile dysfunction. Generic vardenafil is the same molecule when the strength and schedule match.
How long does Levitra last?
Terminal half-life is about four to five hours, so the useful evening window stays short compared with tadalafil's longer stretch.
Is Levitra still available?
Brand Levitra may be hard to find at US counters. Generic vardenafil can still fill with a valid prescription when the pharmacy stocks it.
What is the difference between Staxyn and Levitra?
Both carry vardenafil. Staxyn is a 10 mg orally disintegrating tablet. Levitra / film vardenafil is swallowed. Follow the product on the bottle — they are not swap-ins.
Can I take Levitra with food?
A lighter plate is safer for timing. A high-fat meal can delay and soften the peak, which reads like a failed tablet if you judge too early.
Which drugs conflict with Levitra QT concerns?
Class IA and III antiarrhythmics such as amiodarone, sotalol, quinidine, and procainamide belong on the check-before-swallow list with FDA Levitra language and Mayo interaction notes. Ask before mixing.
Can I take Levitra with nitrates?
No. Any nitric oxide donor with vardenafil — including Nitrostat-style nitroglycerin — can crash blood pressure. Riociguat is a separate absolute stop.
Is Levitra better than Viagra or Cialis?
Same class, different clocks and holds. Pick by timing and your safety list — not a single “best” slogan.
Where can I buy Levitra online?
Only through a valid prescription and a state-licensed pharmacy. Match the name on BeSafeRx via the Pharmacy Online USA note. This site does not sell tablets.
Does this site fill vardenafil?
No. The Drug Brief publishes education briefs. Fills stay at a licensed pharmacy after a clinician writes the script.
Next step
If you need the kitchen order-after-food checklist, open vardenafil what to know. Match any online seller on Pharmacy Online USA before you pay.
Formulary note · Sources: Mayo Clinic vardenafil oral route, SingleCare Levitra vs Cialis comparison, FDA Levitra PI for QT and nitrate language. Full text also on DailyMed.
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