Viagra Professional vs Evista: side-by-side comparison
Viagra Professional (Erectile Dysfunction (ED)) and Evista (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 | Viagra Professional | Evista |
|---|---|---|
| Active ingredient | Sildenafil Citrate | Raloxifene |
| Manufacturer | Pfizer | Eli Lilly |
| Class | Erectile Dysfunction (ED) | Hormones and Birth Control |
| Strengths | 100mg | 60mg |
| Forms | sublingual tablet | tablet |
What's the same
Viagra Professional and Evista 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
Viagra Professional belongs to Erectile Dysfunction (ED) while Evista 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
Viagra Professional: Sildenafil citrate inhibits PDE5, allowing the cyclic GMP produced during sexual arousal to accumulate in penile tissue, which relaxes the smooth muscle of the penile arteries and increases blood inflow. Evista: Raloxifene binds estrogen receptors and produces tissue-selective effects: estrogen-agonist activity in bone (preserving bone mineral density) and on lipid metabolism (lowering LDL cholesterol), while exhibiting estrogen…
When Viagra Professional is preferred
Viagra Professional is intended for adult men with erectile dysfunction.
When Evista is preferred
Evista is approved for prevention and treatment of postmenopausal osteoporosis and for reduction of invasive breast cancer risk in postmenopausal women at increased risk.
Frequently asked questions
Is Viagra Professional or Evista better? ▾
Viagra Professional and Evista 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 Viagra Professional to Evista? ▾
Switching between Viagra Professional and Evista 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 Viagra Professional and Evista have the same side effects? ▾
No — they belong to different classes and have distinct side-effect profiles. Each medication has its own prescribing information.
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The information on this website is provided for reference and educational purposes only. It does not replace consultation with a qualified healthcare professional.