Addyi vs Caverject: side-by-side comparison
Addyi (Women's Sexual Health) and Caverject (Erectile Dysfunction (ED)) belong to different therapeutic classes and are rarely interchangeable. This page compares the medications' purposes, mechanisms and the situations where each is used.
| Property | Addyi | Caverject |
|---|---|---|
| Active ingredient | Flibanserin | Alprostadil |
| Manufacturer | Sprout Pharmaceuticals | Pfizer |
| Class | Women's Sexual Health | Erectile Dysfunction (ED) |
| Strengths | 100mg | 10mcg, 20mcg, 40mcg |
| Forms | tablet | injection |
What's the same
Addyi and Caverject are used in very different patients, and the points in common are limited. The main shared element is that both meet regulatory standards for efficacy and safety and benefit from pharmacist oversight.
Key differences
Addyi belongs to Women's Sexual Health while Caverject belongs to Erectile Dysfunction (ED). Indications, mechanisms and target populations differ. The comparison is most useful when a clinician has mentioned both medications and the patient wants to understand where each fits.
Mechanism and action
Addyi: Sexual desire is modulated by complex central nervous system pathways involving serotonin (generally inhibitory) and dopamine and norepinephrine (generally excitatory). Caverject: Alprostadil binds prostaglandin E receptors on smooth muscle of the corpus cavernosum, triggering cAMP-mediated relaxation of cavernosal smooth muscle independent of the nitric oxide pathway used by PDE5 inhibitors.
When Addyi is preferred
Addyi is indicated for the treatment of acquired, generalised hypoactive sexual desire disorder (HSDD) in premenopausal women.
When Caverject is preferred
Caverject is approved for erectile dysfunction of vasculogenic, neurogenic, psychogenic or mixed aetiology in adult men.
Frequently asked questions
Is Addyi or Caverject better? ▾
Addyi and Caverject are not interchangeable — they treat different conditions. Asking which is "better" is meaningful only when a clinician has weighed both for the same specific clinical scenario.
Can I switch from Addyi to Caverject? ▾
Switching between Addyi and Caverject is rarely an appropriate decision since they belong to different classes and treat different conditions. The real question is usually whether the diagnosis calls for one medication or the other — which the prescriber resolves.
Do Addyi and Caverject have the same side effects? ▾
No — they belong to different classes and have distinct side-effect profiles. Each medication has its own prescribing information.
More Addyi comparisons
The information on this website is provided for reference and educational purposes only. It does not replace consultation with a qualified healthcare professional.