Home > Health > Pharmacy > Drugs and Medications > S > Sildenafil
http://www.aafp.org/afp/1999/0915/p1172.html
Describes the drug, its application, the side effects and who should not take it.
https://medlineplus.gov/druginfo/meds/a699015.html
Features information about dosage, usage, warnings, and side effects.
http://www.viagra.com/
Pfizer's official site for this drug, with information for both patients and medical professionals.
Home > Health > Pharmacy > Drugs and Medications > S > Sildenafil
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