01Twenty milligrams is the labelled maximum, after a 10 mg start
Levitra film tablets come as 2.5, 5, 10, and 20 mg. Most men start at 10 mg, taken about an hour before sexual activity, not more than once a day. Twenty milligrams is the ceiling. Shop tiles that lead with 20 mg are selling the top rung as if it were the first night.
Age 65 years and older often start at 5 mg. Strong CYP3A4 inhibitors can force 2.5 mg. Moderate inhibitors pull the dose down as well. A 20 mg carton that never asks about those rows is a count, not a regimen.
This page prices generic vardenafil 20 mg x 10 because that is the SERP lock. The body still tells you 20 mg is not the automatic start. Dr. Mateo Ruiz reviewed the page on 2026-08-21. Corrections: [email protected]. This site does not dispense.
02Age, CYP3A4, and the 2.5 mg and 5 mg rows
Usual start: 10 mg. Maximum: 20 mg once daily. Age 65 and older: consider 5 mg. Ritonavir and other strong CYP3A4 inhibitors: 2.5 mg, with spacing the insert spells out. Moderate inhibitors also reduce the dose.
Liver impairment and some interacting antibiotics pull the milligram down. A 20 mg 'because that is what the ad showed' skip those rows. Bring the med list to the visit that writes the first script.
Grapefruit can raise exposure. Tell the prescriber if it is a daily habit before anyone prices ten ceiling tablets.
| Row | Labelled tablet | Do not |
|---|---|---|
| Usual adult start | 10 mg ~60 min before sex | Open at 20 mg from a coupon |
| Age ≥65 | Often 5 mg start | Copy a 20 mg holiday pack |
| Strong CYP3A4 inhibitor | 2.5 mg row | Stack sildenafil the same night |
| Staxyn ODT | Usually 10 mg ODT | Treat as cheap Levitra 20 |
03Nitrates, riociguat, and class emergencies
Organic nitrates in any form are contraindicated. So is riociguat. Alpha-blockers add orthostasis; stabilize that therapy before adding vardenafil. Two PDE5 tablets the same night is never the workaround.
Priapism past four hours, sudden monocular vision loss, and sudden hearing drop are stop-and-seek-care rows at 2.5 mg and at 20 mg. The stamp does not change the phone number.
Unstable angina, recent MI or stroke, and severe hypotension push the decision to cardiology. A coupon does not clear those charts.
Stops that survive a 20 mg coupon
- Nitrates and riociguat: contraindicated
- Class IA / III antiarrhythmics and congenital long QT: avoid
- Priapism >4 h: emergency
- NAION or sudden hearing loss: stop, same-day care
04Published cash for generic vardenafil 20 mg x 10
GoodRx Levitra table lists generic vardenafil 20 mg x 10 at $573.78 average retail and $44.21 with a coupon (06 July 2026). Daily 2.5 mg and 10 mg starts are other NDCs. Staxyn ODT is a different product.
This site does not dispense. Ask the pharmacist to price the strength on the prescription. A coupon that only exists for 20 mg does not make 20 mg the labelled start.
Generic vardenafil 20 mg x 10, GoodRx Levitra table, 06 July 2026.
Generic vardenafil 20 mg, ten tablets, the labelled maximum this page follows, October 2026. GoodRx Levitra table lists 20 mg x 10 at $573.78 average retail and $44.21 with a coupon (06 July 2026). Staxyn ODT is a different product. This site does not dispense.
05Peak near one hour, and what a heavy meal does
Median Tmax after 20 mg fasted is about 60 minutes, with a 30-to-120-minute range. Fifteen-minute party stories are early responders, not the plan. The onset note is the stopwatch page.
High-fat meals cut Cmax by 18 to 50 percent. A 20 mg swallow after a heavy plate is a poor speed test and a poor 'generic failed' review. Alcohol adds hypotension and steals psychogenic arousal. That is not a PK clash; it is two depressants on the same evening.
Tadalafil 10 mg is more food-forgiving and lasts longer. Sildenafil 25-50 mg shares a similar short clock and a clearer high-fat penalty. Pick one clock. Do not stack.
| Absorption | Median Tmax ~60 min fasted (30-120) |
|---|---|
| Distribution | High-fat Cmax −18% to −50% |
| Metabolism | CYP3A4 major; strong inhibitors force low mg |
| Excretion | Once-daily film tablet; shorter tail than tadalafil |
06Staxyn ODT is not a cheaper Levitra 20
Staxyn is vardenafil as an orally disintegrating tablet. Water and food rules differ from the film tablet. The usual ODT strength is 10 mg. Substituting Staxyn for a 20 mg film script, or the reverse, is a different fill.
This page does not invent a Staxyn cash figure. If the prescription says Levitra 20 mg film tablets, price that NDC. If it says Staxyn, price Staxyn.
| INN / brand | vardenafil / Levitra (Staxyn is ODT) |
|---|---|
| US film tablets | 2.5, 5, 10, 20 mg |
| Strength priced here | 20 mg (labelled maximum) |
| Usual start | 10 mg for most men |
07QT interval language before any 20 mg swallow
Vardenafil prolongs the QT interval. The insert tells clinicians to avoid Class IA and Class III antiarrhythmics and congenital long QT. Thorough QT work in healthy men showed small QTcF shifts; additive effect appeared when another QT-active drug sat beside vardenafil.
Splitting a 20 mg tablet does not create a safe micro-dose on amiodarone or sotalol. Cardiology review comes first. The QT note holds that list without turning this page into an ECG manual.
A clean QT list still leaves nitrates and riociguat as class contraindications. Passing the arrhythmia screen is not a nitrate waiver.
08When tadalafil 10 or sildenafil 25-50 is the better fit
Need a 36-hour tail and almost no food effect? Tadalafil 10 mg as needed. Need the usual Viagra start and a clear food warning? Sildenafil 25-50 mg. Need untimed weekdays? Daily tadalafil, not a 20 mg split.
A dirty QT list is a reason to leave vardenafil, not a reason to split 20 mg. Failed 10 mg after honest trials can go to 20 mg on the same INN. Failed 20 mg with a clean list is a workup, not a third brand from a cart.
09What a 20 mg coupon does not decide
Twenty milligrams is the labelled maximum. Ten milligrams is the usual start. QT drugs and nitrates are hard stops. GoodRx prices 20 mg x 10 at $573.78 retail and $44.21 with a coupon on the 06 July 2026 listing we cite.
Dr. Mateo Ruiz reviewed this page on 2026-08-21. Drafted from the Levitra insert, checked against DailyMed, then read by a clinician. Write [email protected] for corrections only.