Apomorphine's chemistry dictates its delivery. Because it's broken down in the gut and liver, a swallowed pill barely works — so every serious ED formulation is sublingual, dissolving under the tongue for fast absorption straight to the bloodstream and brain.1 The options below differ mainly in what apomorphine is combined with.
1
Combination sublingual
Sublingual apomorphine + PDE5
Compounded troches pair apomorphine with sildenafil and/or tadalafil, targeting both the central (brain) and peripheral (blood-flow) sides of an erection at once — a "coordinated action" single-ingredient pills can't offer.2
2
3
Historic branded tablets
Uprima / Ixense (apomorphine SL)
The first branded sublingual apomorphine tablets, approved in Europe in the early 2000s at 2 mg and 3 mg. Commercially withdrawn, but they set the dosing and safety profile still cited today.1
Side-by-side comparison
| Option | Delivery | Typical dose | Acts on | Status |
|---|---|---|---|---|
| Apomorphine + PDE5 | Sublingual | Compounded | Brain + penis | Compounded / off-label |
| Apomorphine SL (standalone) | Sublingual | 2–4 mg | Brain (central) | Compounded / off-label |
| Uprima / Ixense | Sublingual tablet | 2–3 mg | Brain (central) | Withdrawn |
| PDE5 inhibitors (reference) | Oral tablet | e.g. 50 mg | Penis (peripheral) | FDA-approved |
The pattern is simple: apomorphine brings the central mechanism, and modern formulas increasingly combine it with a peripheral PDE5 inhibitor rather than replace one with the other.
What to weigh when comparing options
- Mechanism fit. A central agent makes most sense when arousal — not just blood flow — is the bottleneck.1
- Dose & tolerability. Pooled trial data found 2 and 4 mg offered the most acceptable balance of effect and side effects, with nausea easing over the first weeks of use.4
- Delivery. Sublingual is essential; swallowed apomorphine is largely inactivated before it works.2
- Combination vs. standalone. Troches that add a PDE5 inhibitor aim to cover both pathways in one dose.2
Availability & safety. Apomorphine is FDA-approved in the U.S. only for Parkinson's disease; branded sublingual ED tablets are no longer marketed. Where used for ED it is typically compounded and prescribed off-label. It can lower blood pressure — use caution with antihypertensives and only under a clinician's supervision.3
Keep exploring
Sources
- Briganti A, et al. A comparative review of apomorphine formulations for erectile dysfunction. Drugs & Aging, 2006;23(4):309–319. pubmed.ncbi.nlm.nih.gov/16732690
- Rugiet. What is apomorphine ED medication? rugiet.com/blog/erectile-dysfunction/what-is-apomorphine-ed-medication
- Ro Health Guide. Apomorphine for ED: forms, dosing and FDA status. ro.co/erectile-dysfunction/apomorphine-for-ed
- Dula E, et al. Efficacy and safety of fixed-dose and dose-optimization regimens of sublingual apomorphine versus placebo (Apomorphine Study Group). pubmed.ncbi.nlm.nih.gov/10869641