2-minute questionnaire
A few questions about your health, prior ED history, and any current medications. Done from your phone, on your time.
InstalabTadalafil · 2.5-5mg · generic Cialis®
Back to spontaneous. Without the timing.
Other ED pills put you on a clock. Take it, wait, perform before the window closes. Tadalafil (generic Cialis®) stays in your system up to 36 hours, so sex happens on your timeline, not the pill's. From $7/month, delivered.
36 hrCoverage per dose
22,000+Men studied in global trials
From $7Per month
Tadalafil · once daily · food-independent
Licensed US physician review
FDA-approved generic
Discreet packaging
Free shipping
How it works
From questionnaire to first dose.
A 2-minute questionnaire, private physician review, and tadalafil shipped to your door in discreet packaging. No appointments, no in-person visit.
Private physician review
A licensed US physician reviews your case and confirms daily tadalafil is appropriate. If they have questions, they'll message you. Most reviews complete within 1 business day.
Discreet delivery
Generic tadalafil ships in plain, unmarked packaging. No clinical labels visible from the outside. Arrives in 3 to 5 business days.
Daily routine, full effect at 4 weeks
One tablet at roughly the same time each day. Steady blood levels build over the first 4 weeks — most men notice results by week 3.
Pricing
Pick your plan.
Subscribe for daily 2.5mg or 5mg with automatic refills shipped discreetly, or buy once to try it first. Physician review and free discreet shipping included.
TadalafilGeneric for Cialis®
Need something stronger for the moment?
10mg and 20mg on-demand are available with membership.
Most men do great on daily 2.5mg or 5mg. But if you want maximum strength for a specific moment, a date night, a weekend away, a milestone, 10mg and 20mg on-demand are available with membership.
Taken 30 to 60 minutes before sex. Still covers you up to 36 hours. Physician-reviewed dose selection, ongoing optimization, and the freedom to switch between daily and on-demand as your needs change.
Explore membership →Doses available
Everyone starts at 2.5mg. 5mg if you have taken tadalafil before.
Daily tadalafil comes in two doses, 2.5mg and 5mg. New patients start at 2.5mg, the gentlest effective daily dose. If you have already been on tadalafil, 5mg is available self-serve in the questionnaire. Both share the same safety profile and once-daily routine.
2.5 mg daily Starting dose
Gentlest effective daily dose · ready whenever you are · 36-hour coverage
$7/mo
5 mg daily Available for prior tadalafil users
Already been on tadalafil and need something more?
$7/mo
available self-serve
On-demand dosing requires more clinical tailoring, so we pair it with membership and physician follow-up. Daily 2.5mg and 5mg are offered self-serve because they share the same safety profile and simple once-daily routine.
About the medication
One small pill. 36 hours of readiness.
Take one tablet each day at about the same time. Full effect builds over the first four weeks as tadalafil reaches steady blood levels.
- One small tablet, once a dayTake it at the same time each day, with or without food. Compatible with moderate alcohol.
- Ready when you areDaily dosing means no timing a pill before sex. Spontaneity stays intact.
- Up to 36 hours of coverageTadalafil has a ~17.5-hour half-life, the longest in its class. One pill keeps you covered into the next day.
- Ongoing supportOur care team is a message away. We check in at 4 weeks to make sure the dose is working for you.
Why tadalafil
The longest coverage in ED medicine.
Tadalafil is the only ED medication with a daily dosing option, which means no pill to plan and no window to watch.
- Up to 36 hours of coverage per doseA 17.5-hour half-life, the longest in its class. Sildenafil and vardenafil last 4 to 6 hours. Tadalafil covers you into the next day.
- Works with food and moderate alcoholA fatty meal can cut sildenafil's effectiveness by up to 50%. Tadalafil absorbs reliably regardless of what you have eaten.
- One of the most-studied ED medications in historyStudied in 22,000+ men across global trials, with 70 to 80% response rates for mild to moderate ED. Long-term follow-ups show improvements hold for years with continued daily use.
Real results
What daily tadalafil looks like in practice.
Three Instalab patients, in their own words, on their own timelines.
No more performance pressure
“The mental loop of 'will it work this time' was half the problem. Knowing I'm covered all weekend broke that cycle.”
Back to how it used to be
“I tried Viagra (sildenafil) first but hated planning around it. Daily 2.5mg feels like nothing — I'm just back to how things used to be.”
Same routine, stronger result
“2.5mg worked but I wanted it to hit a bit harder. The 5mg step-up was seamless — same drug, same routine, better result.”
Tadalafil is a prescription medicine. Important safety information applies. Do not take tadalafil with nitrates. Common side effects include headache, back pain, flushing, and indigestion.
Common Questions
Everything people ask before starting.
Ready when you are
Spontaneity, on your timeline.
Answer a few questions. A physician reviews your case. If daily tadalafil is appropriate, your prescription goes out in discreet packaging.
No commitment to treatment.