Caverject vs Yaz: side-by-side comparison
Caverject (Erectile Dysfunction (ED)) and Yaz (Hormones and Birth Control) belong to different therapeutic classes and are rarely interchangeable. This page compares the medications' purposes, mechanisms and the situations where each is used.
| Property | Caverject | Yaz |
|---|---|---|
| Active ingredient | Alprostadil | Drospirenone |
| Manufacturer | Pfizer | Bayer |
| Class | Erectile Dysfunction (ED) | Hormones and Birth Control |
| Strengths | 10mcg, 20mcg, 40mcg | 3mg/0.02mg |
| Forms | injection | tablet |
What's the same
Caverject and Yaz 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
Caverject belongs to Erectile Dysfunction (ED) while Yaz belongs to Hormones and Birth Control. 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
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. Yaz: Yaz prevents pregnancy through three mechanisms: ovulation suppression (the dominant effect), thickening of cervical mucus to impede sperm transit, and changes in endometrial receptivity.
When Caverject is preferred
Caverject is approved for erectile dysfunction of vasculogenic, neurogenic, psychogenic or mixed aetiology in adult men.
When Yaz is preferred
Yaz is approved for contraception in adult women requesting an oral contraceptive, treatment of premenstrual dysphoric disorder (PMDD), and treatment of moderate acne in women aged ≥14 who are also requesting contraception.
Frequently asked questions
Is Caverject or Yaz better? ▾
Caverject and Yaz 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 Caverject to Yaz? ▾
Switching between Caverject and Yaz 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 Caverject and Yaz 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 Caverject comparisons
The information on this website is provided for reference and educational purposes only. It does not replace consultation with a qualified healthcare professional.