Viagra Professional vs Neurontin: side-by-side comparison
Viagra Professional (Erectile Dysfunction (ED)) and Neurontin (Neurological Medications) 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 | Neurontin |
|---|---|---|
| Active ingredient | Sildenafil Citrate | Gabapentin |
| Manufacturer | Pfizer | Pfizer |
| Class | Erectile Dysfunction (ED) | Neurological Medications |
| Strengths | 100mg | 100mg, 300mg, 400mg, 600mg, 800mg |
| Forms | sublingual tablet | capsule, tablet, oral solution |
What's the same
Viagra Professional and Neurontin 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 Neurontin belongs to Neurological Medications. 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. Neurontin: Gabapentin binds the alpha-2-delta auxiliary subunit of voltage-gated calcium channels in the central nervous system, reducing presynaptic calcium influx and the release of excitatory neurotransmitters such as glutamate…
When Viagra Professional is preferred
Viagra Professional is intended for adult men with erectile dysfunction.
When Neurontin is preferred
Neurontin is approved in adults and children aged 3 years and older as adjunctive therapy for partial-onset seizures, and in adults for post-herpetic neuralgia.
Frequently asked questions
Is Viagra Professional or Neurontin better? ▾
Viagra Professional and Neurontin 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 Neurontin? ▾
Switching between Viagra Professional and Neurontin 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 Neurontin 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 Viagra Professional comparisons
The information on this website is provided for reference and educational purposes only. It does not replace consultation with a qualified healthcare professional.