Quick answer: Rodeo and MangoRx both state onset as fast as 10–15 minutes, using sublingual delivery rather than a swallowed pill. Here's the ranked list of every provider on this page with a stated onset time, fastest first.

  1. Rodeo — as fast as 10 minutes

    Sublingual chew, 4-in-1 formula (apomorphine, vardenafil, sildenafil, tadalafil). $69/month subscription.

  2. MangoRx — as little as 10 minutes

    Sublingual dissolving tablet, compounded (PDE5 inhibitor + L-arginine + oxytocin). $12.50/tablet, no subscription required.

  3. Strut Health (Super Strut) — onset not specified

    Sublingual dissolving tablet, 4-in-1 formula (tadalafil, vardenafil, apomorphine, oxytocin). $79–$99/month. Same sublingual mechanism as the above two, but Strut Health doesn't publish a specific onset time.

  4. FeelGood (QUAD®) — onset not specified

    Sublingual liquid, same 4-in-1 formula as Rodeo. $114/month. Sublingual delivery, no specific onset time published.

  5. Standard swallowed pills (most providers on this page)

    Generic and brand-name sildenafil or tadalafil taken as a standard tablet typically takes 30 minutes to an hour to work, and can be slowed further by a heavy meal, since it has to pass through the digestive system first.

Compounded medication notice: Rodeo, MangoRx, Super Strut, and QUAD® are all compounded medications, not FDA-approved as combined products. Onset times listed are as stated by each provider, not independently verified by EdClinic.co.

Why Sublingual Is Faster, Mechanically

A swallowed pill has to survive digestion and pass through the liver before reaching your bloodstream — a process that takes time and can be slowed by food. Sublingual delivery, dissolved under the tongue, absorbs directly into the bloodstream through the tissue there, skipping that route. That's the actual mechanism behind every "fast-acting" claim on this list.

4-in-1 Sublingual Chew

Rodeo

Apomorphine, vardenafil, sildenafil, and tadalafil in one sublingual chew. $69/month subscription, cancel anytime.

Compounded medication notice: not FDA-approved.

View Rodeo
Bottom Line

If a specific, published onset time matters to you, Rodeo and MangoRx are the only two providers on this page stating a number — both around 10 minutes. Strut Health and FeelGood use the same sublingual mechanism but don't publish a specific figure.

Which ED medication works the fastest?
Among providers on this page that publish a specific number, Rodeo and MangoRx both state onset as fast as 10 minutes, using sublingual (under-the-tongue) delivery rather than a swallowed pill.
Does food slow down sublingual ED medication?
Providers using sublingual delivery generally state it isn't blocked by food the way a swallowed pill can be, since it doesn't pass through the digestive tract. Confirm specifics with the prescribing clinician.
Related on EdClinic
Advertising disclosure: EdClinic.co is an independent comparison site. We may earn a commission when you visit a provider through a link on this page — this does not affect the price you pay. Compounded medications referenced on this page are not FDA-approved; compounding pharmacies prepare medications under a licensed clinician's prescription. Nothing on this page is medical advice. Talk to a licensed healthcare provider about your specific situation.