Propecia vs Xalatan: side-by-side comparison
Propecia (Male and Female Pattern Hair Loss) and Xalatan (Eye Care and Ophthalmic Treatments) belong to different therapeutic classes and are rarely interchangeable. This page compares the medications' purposes, mechanisms and the situations where each is used.
| Property | Propecia | Xalatan |
|---|---|---|
| Active ingredient | Finasteride | Latanoprost |
| Manufacturer | Merck | Pfizer |
| Class | Male and Female Pattern Hair Loss | Eye Care and Ophthalmic Treatments |
| Strengths | 1mg | 0.005% |
| Forms | tablet | ophthalmic solution |
What's the same
Propecia and Xalatan 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
Propecia belongs to Male and Female Pattern Hair Loss while Xalatan belongs to Eye Care and Ophthalmic Treatments. 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
Propecia: DHT, produced from testosterone by 5-alpha-reductase, drives miniaturisation of scalp hair follicles in genetically susceptible men, gradually shortening anagen growth phases until follicles produce only fine vellus hair… Xalatan: Latanoprost is a prodrug ester hydrolysed by corneal esterases to its active free acid, which selectively binds the prostaglandin F (FP) receptor.
When Propecia is preferred
Propecia is approved for the treatment of male pattern hair loss (androgenetic alopecia) in men aged 18 to 41.
When Xalatan is preferred
Xalatan is approved in adults and children for the reduction of elevated intraocular pressure in patients with chronic open-angle glaucoma or ocular hypertension.
Frequently asked questions
Is Propecia or Xalatan better? ▾
Propecia and Xalatan 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 Propecia to Xalatan? ▾
Switching between Propecia and Xalatan 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 Propecia and Xalatan 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 Propecia comparisons
The information on this website is provided for reference and educational purposes only. It does not replace consultation with a qualified healthcare professional.