Nexium vs Viagra Professional: side-by-side comparison
Nexium (Gastrointestinal Medications) and Viagra Professional (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 | Nexium | Viagra Professional |
|---|---|---|
| Active ingredient | Esomeprazole | Sildenafil Citrate |
| Manufacturer | AstraZeneca | Pfizer |
| Class | Gastrointestinal Medications | Erectile Dysfunction (ED) |
| Strengths | 20mg, 40mg | 100mg |
| Forms | delayed-release capsule, delayed-release tablet, oral suspension | sublingual tablet |
What's the same
Nexium and Viagra Professional 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
Nexium belongs to Gastrointestinal Medications while Viagra Professional 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
Nexium: Esomeprazole is a substituted benzimidazole prodrug that is activated in the acidic environment of the gastric parietal cell, where it irreversibly inhibits the H+/K+-ATPase enzyme — the proton pump responsible for the f… 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.
When Nexium is preferred
Nexium is approved in adults and children for the treatment of gastro-oesophageal reflux disease, including erosive oesophagitis healing and maintenance of healing, peptic ulcer disease, prevention of NSAID-induced ulcers, Zollinger-Ellison syndrome and as part of triple-therapy…
When Viagra Professional is preferred
Viagra Professional is intended for adult men with erectile dysfunction.
Frequently asked questions
Is Nexium or Viagra Professional better? ▾
Nexium and Viagra Professional 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 Nexium to Viagra Professional? ▾
Switching between Nexium and Viagra Professional 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 Nexium and Viagra Professional 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 Nexium comparisons
The information on this website is provided for reference and educational purposes only. It does not replace consultation with a qualified healthcare professional.