Match the night to a labeled ladder, not a postcard

Why 100 mg, 2.5 mg daily, and 5 mg are three different online bets

A generic ED quote is not one product. It is a bet on a clock: a 100 mg night, a 2.5 mg morning habit, or a 5 mg vardenafil start.

Search pages flatten the class into one cheap ED pill. The labels do not. Sildenafil is an as-needed ladder from 25 to 100 mg. Tadalafil is a 2.5-20 mg ladder that splits into daily and PRN jobs. Vardenafil is a 2.5-20 mg as-needed ladder with a QT ink. Featuring 100, 2.5 daily, and 5 is how this desk keeps those jobs from collapsing into one postcard.

The 100 mg bet says: I will pick the night, swallow about an hour out, keep the meal honest, and live inside a four-hour window. The 2.5 mg daily bet says: I will swallow with breakfast and stop linking sex to a tablet. The 5 mg vardenafil bet says: I want the short clock with a conservative featured start and I have checked the rhythm-drug list.

None of those bets is stronger in head-to-head trials in a way that lets you skip the others. Efficacy is comparable when the dose is right and stimulation is present. Men switch because of food, backache, blue vision, a partner's schedule, or a QT line on the chart - not because one enzyme blocker is magic.

Price follows the tablet, not the enzyme. A bottle of 100 mg sildenafil, a month of 2.5 mg tadalafil, and a strip of 5 mg vardenafil are three different receipts. Compare them as schedules. Do not average them into one generic ED cost.

How to read a generic ED quote against the labeled ladder

If the quote hides the milligram, it is not a quote. It is a banner.

Ask four things of any online number: which INN, which milligram, daily or PRN, and whether the seller is a licensed US pharmacy. Then lay that milligram on the labeled ladder. 100 mg sildenafil is the ceiling, not a starter for everyone. 2.5 mg tadalafil is a daily rung, not a shy 20. 5 mg vardenafil is a common start, especially after 65, not a half-dose of a 10 mg habit you invented.

A quote for tadalafil 20 mg priced like a daily vitamin is a mismatch. That tablet is PRN. Taking it every morning is an off-script stack of side effects and a nitrate wait that lasts two days after the last swallow. A quote for sildenafil 20 mg may be the PAH product. Wrong job.

Count the tablets against the schedule. Thirty 2.5 mg tadalafil tablets is a month of mornings. Four 100 mg sildenafil tablets is four planned nights. Eight 5 mg vardenafil tablets is eight attempts, not a daily cover. People feel cheated when they bought the wrong calendar.

Then read the hold. Nitrates kill every rung. Riociguat too. Alpha-blockers need a stable baseline and a low start. CYP3A4 inhibitors drop the rung you should stand on. A price that cannot survive those sentences is not cheap. It is incomplete. Pathway refresher: the signal has to fire first.

The sildenafil 25-100 ladder, featuring 100

Labeled adult tablets: 25, 50, 100 mg. Recommended start for most men: 50 mg about one hour before sex, as early as 30 minutes, as late as four hours. Titrate to 100 mg if the night is honest and the effect is thin. Drop to 25 mg if flush, headache, or visual smear is too loud. Once per day. That is the whole ladder.

This desk features 100 mg because that is the tablet the price shoppers name. It is also the tablet that surprises men who skipped 50. More milligram is more PDE5 occupancy and more spillover. It is not more nitric oxide. If 50 mg failed after a heavy meal and no stimulation, 100 mg will fail the same way with a worse headache.

Food is the sildenafil tax. A high-fat meal delays absorption and can blunt Cmax. Couples who eat late do better if they swallow earlier on a lighter plate, or they leave this ladder. Alcohol is a separate tax on the tap. The sildenafil line keeps food next to the 100 mg tablet on purpose.

Use 25 mg when the chart is older, on a moderate CYP3A4 inhibitor, or already on an alpha-blocker that is newly stable. Use 50 mg as the default experiment. Use 100 mg when 50 mg was a true, well-timed try. Do not start at 100 mg to beat a quote that sold out of 50.

Visual blue tint is the sildenafil signature. Transient. Mention it once so nobody thinks they are stroking out. If it persists or vision drops in one eye, stop. That is no longer a PDE6 party trick.

The tadalafil 2.5-20 ladder, featuring 2.5 daily

Labeled tablets: 2.5, 5, 10, 20 mg. Two jobs. Daily 2.5 or 5 mg for ED (5 mg is also the BPH daily dose). PRN 10 mg, step to 20 or down to 5. Do not run both jobs at once. This desk features 2.5 mg daily because that is the lowest labeled daily ED rung and the one men under-quote when they only know the 20 mg weekend story.

Daily 2.5 mg is a habit, not a weaker 20. Steady plasma. Sex without a countdown. Side effects, if they appear, do not take Sunday off. Back and muscle ache are the tadalafil texture. Simple analgesia helps some men. Others switch back to a short window because they do not want a 36-hour reminder in their lumbar muscles.

PRN 20 mg is the long weekend. Half-life about 17.5 hours. Useful window up to about 36 hours. Food barely matters. That is the real reason couples pick it when dinner is the event. The nitrate wait after the last dose is 48 hours. Daily dosing means that wait is always in the background. Say that out loud if chest pain is in the history.

A 20 mg quote priced per tablet can look cheaper than a month of 2.5 mg until you count how you live. Four PRN nights a month is one math. Daily cover is another. The tadalafil line flags the do-not-stack-20 rule next to the 2.5 mg morning tablet.

Adcirca-style 20 mg once daily is a PAH regimen, not an ED bargain six-pack. Same molecule, different labeled life. Keep the bottles straight.

The vardenafil 2.5-20 ladder, featuring 5

Labeled tablets: 2.5, 5, 10, 20 mg. Classic Levitra start is 10 mg about 60 minutes before sex, then up to 20 or down to 5. Age 65 and up: consider 5 mg first. Strong CYP3A4 inhibitors: 2.5 mg. This desk features 5 mg so the online price talk starts on the conservative rung, not the 10 mg postcard every other site reprints.

Clock is sildenafil-like: plan the night, live in a four-to-six-hour window. Food is kinder than sildenafil but a heavy meal can still slow it. Staxyn, the orally disintegrating 10 mg tablet, is a different product with its own food and water notes. Do not assume a film-coated 5 mg quote is the ODT.

The extra hold is electrical. Vardenafil can prolong QT. Skip it with class IA or III antiarrhythmics and with congenital long QT. That sentence alone is why some men should never win this quote, no matter the price. The vardenafil line puts QT before the 5 mg tablet.

Visual effects are usually quieter than sildenafil. Backache is quieter than tadalafil. If you need a short window, a lower featured start, and a clean QT story, 5 mg is a rational first experiment. If you need food freedom or no planning, it is the wrong ladder.

Clock and kitchen, not brand loyalty

Three ladders. One featured tablet each. Not 50 vs 5 vs 10.

Ask how sex actually happens in the house. Planned Friday after a late meal points away from sildenafil 100 mg unless you move the swallow. Unpredictable nights point at tadalafil 2.5 mg daily. A man who wants a short, discrete window and already takes sotalol should not be shopping vardenafil at any milligram.

Brand names are identifiers. Viagra, Cialis, Levitra. The generic is the same INN if the pharmacy is real. Paying for a coat is a preference, not a potency upgrade. Paying for the wrong milligram is a schedule error.

Side-effect texture is the tie-break after clock and kitchen. Blue smear: leave sildenafil. Weekend lumbar ache: leave tadalafil, or drop from 20 PRN to 2.5 daily and reassess. Palpitations on a QT drug: leave vardenafil. Headache and flush are class noise. They often fade. They are not a reason to rotate molecules every Saturday.

Who starts where

Healthy, first try, planned evenings: many clinicians still start sildenafil 50 mg even though this page features 100. That is correct. Feature is a SERP lock, not an order to skip the middle rung. After a fair 50, 100 is the labeled ceiling.

Older, on a CYP3A4 inhibitor, or newly stable on an alpha-blocker: start at the floor of whichever ladder you chose - sildenafil 25, tadalafil 2.5 daily or 5 PRN, vardenafil 2.5 or 5. Do not let a sold-out 100 mg strip talk you out of a safe first rung.

BPH symptoms plus ED: tadalafil 5 mg daily is the labeled overlap. This desk still features 2.5 mg daily for the pure ED habit. If the prostate is the second target, the clinician may step to 5. That is a different sentence than buying 20 mg and hoping the prostate notices.

Prior NAION, unstable angina, a nitrate bottle in the drawer, or riociguat: no ladder. The class is closed. Shop a different conversation.

Switching without stacking

One PDE5 at a time. Tadalafil's tail is the one that bites men who add a Saturday sildenafil because the daily 2.5 felt quiet. The enzyme is already occupied. You bought extra hypotension and no new mechanism.

Give a fair trial: several attempts, honest stimulation, correct food, correct rung. Then switch. A single dead night is not a comparative study. Two or three nights with the same mistake is not one either.

When you switch, restart the holds. A nitrate wait after tadalafil is still 48 hours from the last tablet, including the last 2.5 mg morning. Alpha-blocker timing resets with the new molecule's label, not with your memory of the old one.

Do not split a 20 mg tadalafil into mystery eighths to fake a 2.5 mg daily. Scored or not, that is how doses drift. Ask for the labeled 2.5 mg tablet if daily is the job.

Alpha-blockers sit on a different shelf from nitrates. You can often use a PDE5 after the blood pressure on the alpha-blocker is quiet, starting at the floor of the ladder you chose. You cannot use a nitrate at all. Men collapse those two sentences into one fear and then refuse a useful 2.5 mg daily, or they ignore both and stack. Ink them separately.

If BPH symptoms are half the visit, tadalafil 5 mg daily is the labeled overlap. This page still features 2.5 mg daily for the pure ED habit. Stepping from 2.5 to 5 is a clinician move when the prostate is the second target, not a cart upgrade because 5 looked like a rounder price.

What the old 50 vs 5 vs 10 postcard got wrong

That graphic picked one middle rung from each label and called it a comparison. Sildenafil's middle is 50. Tadalafil's daily middle is 5. Vardenafil's classic start is 10. Fine as a memory trick. Terrible as a shopping list. It hid sildenafil 100, hid tadalafil 2.5 daily, and hid vardenafil 5 for older or QT-adjacent charts.

It also hid jobs. 5 mg tadalafil daily is not the same object as 5 mg vardenafil PRN. One is a morning habit that may also help prostate symptoms. The other is a planned-night tablet with a QT ink. Printing both as 5 made them look interchangeable. They are not.

This desk reprints the full ladders and locks one featured tablet each - 100, 2.5 daily, 5 - so a generic ED quote has to name a rung. If a banner still shows 50 vs 5 vs 10, treat it as a neighbor's leftover, not as this site's line.

What a quote never answers

It never answers whether you can climb a flight of stairs without chest pressure. It never answers whether that old spray is a nitrate. It never answers whether the 5 mg vardenafil is safe next to your antiarrhythmic. It never answers whether the 100 mg sildenafil will survive the anniversary dinner.

Those answers live on a chart and in a room. This page exists so the milligram in the cart matches a labeled ladder instead of a recycled 50-versus-5-versus-10 graphic. For the enzyme story, stay on the signal page. For the individual lines, open sildenafil, tadalafil, or vardenafil.

Educational only. Your clinician picks the rung. Talk to them before you change molecule, milligram, or schedule.