: Only purchase from reputable, licensed pharmacies. Be cautious of websites making "miracle" claims or selling medications without a prescription, as these are often counterfeit.

Check the NHS guide on sildenafil for advice on how to discuss treatment with a pharmacist.

: Avoid "herbal" alternatives that claim to be "natural Viagra," as these often contain undeclared and unregulated chemicals. Where to Find More Information

: Genuine Pfizer Viagra tablets are blue, film-coated, and rounded diamond-shaped. They are marked with "PFIZER" on one side and "VGR" followed by the dosage (25, 50, or 100) on the other. Important Considerations

Review official Patient Information from Pfizer for detailed usage and safety data.

: You must speak with a doctor or pharmacist. They will evaluate your medical history to ensure the medication is safe for you.

: It is intended for men with ED and is not for use by women or children.