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.
A compounded ED formula is a personalized prescription preparation. Rather than a single off-the-shelf pill, a provider designs a custom combination — for example sildenafil plus tadalafil, sometimes with additional actives — in a single dose form, made for you individually by a 503A compounding pharmacy and tailored to your response and the timing you want.
Combining a faster-onset active with a longer-acting one can give you both a quicker start and a wider window — in a single dose form.
The exact combination and strengths are chosen for how your body responds, not a one-size-fits-all pill.
Everything is compounded into a single troche or tablet — no juggling separate medications or timing.
Your provider can refine the combination or strengths at follow-up as you learn how you respond.
A compounded ED formula works through the same PDE5 pathway as sildenafil and tadalafil — combining actives can broaden the onset and duration you feel from one dose.
The formula's active ingredients inhibit the PDE5 enzyme, which normally breaks down the signal that allows an erection to 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 — with natural arousal still required, and onset and duration tuned by the combination your provider selects.
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.
Start your visit →A compounded ED formula is a strong fit for men who haven't gotten their ideal result from a single medication, or who want one dose that blends fast onset with a longer window — chosen for how their own body responds.
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.
Getting a compounded ED formula through ForbiddenRx takes minutes. No insurance, no in-person appointment, no waiting room.
Answer a few private questions about your health and goals online — it takes just a few minutes, on your own time.
A licensed provider licensed in your state reviews your information and, if appropriate, designs the right compounded formula for you.
If prescribed, your compounded formula ships in unmarked packaging from a 503A pharmacy directly to your door — to all 50 states.
A compounded ED formula is built to your provider's specification. The exact combination, strengths, and schedule are selected for you — always confirm the details with your provider.
The exact combination, strengths, and dose form are provider-selected for you:
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.
Seek immediate care for an erection lasting more than 4 hours (priapism) or sudden vision/hearing changes.
A side-by-side look at the 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 | A provider-built custom combination of PDE5 actives | 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 | Peptide acting on desire and arousal | ~45 min | Varies | Injection | Yes |
Treatment shouldn't get in the way of intimacy. A compounded formula is designed around how you respond and when you want it to work — so it fits your life, not the other way around.
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.
Complete a quick online visit. A licensed provider reviews your information and, if appropriate, designs a compounded formula that ships discreetly to your door.
Start your visit →This page is educational and is not medical advice.