A provider-built custom combination — often sildenafil plus tadalafil, sometimes with other actives — compounded into one troche or tablet and tailored to how you respond and when you want it to work. Prescribed online by a licensed provider.
$50/mo Every dose. No price increases.
A few private questions, then a licensed provider reviews your answers.
A compounded ED formula is a personalized prescription preparation. Instead of a single standard tablet, a licensed provider designs a custom combination of active ingredients — commonly sildenafil and tadalafil, sometimes with other actives — and a 503A compounding pharmacy prepares it into one troche or tablet made specifically for you.
Its defining feature is personalization. Because the combination and strengths are chosen for how you respond and when you want the effect, a single formula can pair a faster start with a longer window. Like the individual PDE5 medications it's built from, it relies on natural arousal to work — supporting your body's own response rather than overriding it. The exact combination is always selected by your provider after reviewing your health history.
It's designed for two use patterns: taken as-needed before activity, or on a daily schedule — whichever fits your life and whichever your provider recommends.
Erectile dysfunction is most often a matter of blood flow — and it's one of the most common concerns men bring to a provider. An erection depends on healthy circulation to the penis, so anything that narrows or restricts those blood vessels can make erections harder to achieve or maintain. Common contributors include age, cardiovascular and metabolic health, certain medications, stress, and sleep — which is why a provider looks at the whole picture, not just the symptom.
ED becomes more common with age, but it affects men at every stage of adult life — you're far from alone, and it's nothing to be embarrassed about.
Most men respond well to PDE5-based treatment. If erections have become unreliable enough to bother you, that alone is reason enough to talk to a provider — it doesn't need to be "bad enough" to deserve attention.
The short answer: over-the-counter "enhancement" supplements are unregulated and unproven, a single generic tablet is one PDE5 medication at a fixed profile, and a compounded ED formula is a custom PDE5 combination a provider builds and tunes around how your body actually responds.
| OTC "enhancement" supplement | Single generic tablet (Rx) | Compounded ED formula (Rx) | |
|---|---|---|---|
| What it is | Unregulated over-the-counter pill | One PDE5 medication, fixed profile | Custom PDE5 combination, provider-built |
| Onset & duration | Unverified | Fixed to that drug | Tuned by the actives your provider selects |
| Formula | One-size-fits-all | One-size-fits-all | Prepared per prescription |
| Combines two mechanisms | No | No | Yes — in a single dose form |
| Provider involved | No | Yes | Yes — designs it around your response |
| Tailored to how you respond | No | No | Combination & strengths chosen for you |
Many men start with a single generic tablet and find the onset or duration isn't quite right. A compounded formula is the next step: the same PDE5 science, combined and tuned by a provider around how your body actually responds instead of the average patient's.
It works through the same PDE5 pathway as sildenafil and tadalafil — combining actives lets a provider broaden the onset and duration you feel from a single dose, with natural arousal still required.
The formula's active ingredients inhibit the PDE5 enzyme, which normally breaks down the signal that lets an erection form.
With PDE5 paused, blood vessels relax and circulation to the penis increases whenever you're aroused.
The result is a firmer erection that's easier to achieve and maintain — natural arousal still required, with onset and duration tuned by the combination your provider selects.
It's built for men who want a tailored fit — who haven't gotten their ideal result from a single medication, or who want one dose that blends a fast start with a longer window.
If sildenafil or tadalafil alone hasn't given you the result you want, a combination may be worth discussing with your provider.
Pairing a quicker-onset active with a longer-acting one aims to give you both in one dose.
One troche or tablet, built for your response, instead of managing separate medications and timing.
The formula is designed and adjusted by a licensed provider based on your health history and how you respond over time.
If your main goal is desire or arousal rather than blood flow, PT-141 works through a different pathway. And a compounded PDE5 formula should never be combined with nitrate medications, or used before a provider has reviewed your heart health and full medication list.
You complete a private online visit, a licensed provider reviews it, and — if appropriate — your compounded formula ships to your door. No insurance required, no in-person appointment, no waiting room.
A few private questions about your health and goals, on your own time.
A provider licensed in your state reviews your information and, if appropriate, designs the compounded formula that fits you.
Shipped from a U.S. 503A pharmacy in plain, unmarked packaging to all 50 states. Automatic refills available, and you can message your care team anytime.
Pricing is shown at checkout — no insurance needed, no hidden fees.
You take it as your provider directs — as-needed before activity or on a daily schedule — using the exact combination, strengths, and timing they select for you. Natural arousal is still required for it to work.
Because a compounded ED formula is built on PDE5 inhibitors, taking it with nitrate medications (often prescribed for chest pain or heart conditions) can cause a dangerous, life-threatening drop in blood pressure. Tell your provider about every medication you take.
Because the formula is built on PDE5 inhibitors, its effects mirror those of sildenafil and tadalafil — most reactions are mild and short-lived. Possible side effects include:
It may not be appropriate for men with certain cardiovascular conditions or very low or uncontrolled blood pressure — disclose every medication and condition so your provider can decide whether it's safe for you. Seek immediate care for an erection lasting more than 4 hours (priapism) or sudden vision or hearing changes.
A side-by-side look at the men's ED options available through ForbiddenRx. Your provider helps you choose what's right.
| Treatment | What it is | Onset | Duration | Form | Rx required |
|---|---|---|---|---|---|
| Compounded ED Formula Popular | A provider-built custom PDE5 combination | Tuned by provider | Tuned by provider | Troche / Tablet | Yes |
| Sildenafil | Generic Viagra®, a PDE5 inhibitor | 30–60 min | 4–6 hours | Tablet | Yes |
| Tadalafil | Generic Cialis®, a long-acting PDE5 inhibitor | 30–60 min | Up to 36 hours | Tablet | Yes |
| PT-141 | A peptide acting on desire and arousal | ~45 min | Varies | Injection | Yes |
A compounded ED formula is a personalized prescription preparation. Instead of a single off-the-shelf pill, a licensed provider designs a custom combination of active ingredients — often sildenafil and tadalafil, sometimes with other actives — and a 503A compounding pharmacy prepares it into one troche or tablet made specifically for you. It's built around how you respond and the timing you want, and it's only prescribed after a provider reviews your health history.
Sildenafil and tadalafil are single medications with fixed profiles — sildenafil lasts about 4–6 hours, tadalafil up to 36. A compounded formula combines actives into one dose form, so a provider can pair a faster onset with a longer window and choose strengths tailored to your response. It's the same underlying PDE5 science, delivered as a personalized combination rather than a one-size-fits-all pill.
When a compounded formula is designed and prescribed by a licensed provider and prepared by a 503A pharmacy, the combination and strengths are selected specifically for you and your health history — that's the point of the provider review. It should never be combined with nitrate medications, and it may not be appropriate for men with certain cardiovascular conditions or very low or uncontrolled blood pressure. Disclose every medication and condition so your provider can determine whether a compounded formula is safe for you.
Both onset and duration depend on the specific combination your provider selects. A formula built with a faster-onset active is designed to start working sooner, while a longer-acting component extends the window. Natural sexual stimulation is still required for it to work. Your provider explains the expected onset and duration for your particular formula.
A compounded PDE5 formula should never be taken with nitrate medications (used for chest pain or certain heart conditions) — the combination can cause a dangerous drop in blood pressure. It may not be appropriate for men with certain cardiovascular conditions, very low or uncontrolled blood pressure, or those taking specific other medications. This is exactly what the provider review is for: disclose all your medications and conditions, and a licensed provider will determine whether a compounded formula is safe for you.
No. There's no insurance required and no in-person appointment. You complete a short online visit, a licensed provider reviews your information, and if appropriate, your compounded formula ships discreetly to your door. A prescription is not guaranteed and is subject to provider review of your health history.
U.S. board-certified clinicians
U.S.-based compounding partners
Nationwide telehealth coverage
Complete a private online visit and a licensed provider takes it from there — designing a compounded formula, if appropriate, that ships discreetly to your door.
Medically reviewed by ForbiddenRx Medical Affairs — Independent, licensed medical providers · Last reviewed July 2026. This page was written and is periodically reviewed for medical accuracy in line with clinical guidance followed by the independent, licensed medical providers in the ForbiddenRx network. It is provided for general educational purposes and is not a substitute for professional medical advice, diagnosis, or treatment. Always talk with a licensed provider about your individual health.
This page is educational and is not medical advice.