Cialis vs Xalatan: side-by-side comparison
Cialis (Erectile Dysfunction (ED)) 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 | Cialis | Xalatan |
|---|---|---|
| Active ingredient | Tadalafil | Latanoprost |
| Manufacturer | Eli Lilly | Pfizer |
| Class | Erectile Dysfunction (ED) | Eye Care and Ophthalmic Treatments |
| Strengths | 2.5mg, 5mg, 10mg, 20mg | 0.005% |
| Forms | tablet | ophthalmic solution |
What's the same
Cialis 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
Cialis belongs to Erectile Dysfunction (ED) 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
Cialis: During sexual stimulation, nitric oxide is released in the corpus cavernosum and activates an enzyme that produces cyclic GMP. Xalatan: Latanoprost is a prodrug ester hydrolysed by corneal esterases to its active free acid, which selectively binds the prostaglandin F (FP) receptor.
When Cialis is preferred
Cialis is indicated in adult men for the treatment of erectile dysfunction.
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 Cialis or Xalatan better? ▾
Cialis 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 Cialis to Xalatan? ▾
Switching between Cialis 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 Cialis 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 Cialis comparisons
The information on this website is provided for reference and educational purposes only. It does not replace consultation with a qualified healthcare professional.