Natural Health Research

Naturopathic Medicine
Health Quizzes
Sildenafil Citrate, Viagra, Revatio


Viagra was the first pill approved to treat erectile dysfunction in the United States.

Viagra inhibits phosphodiesterase type 5, PDE5, which is responsible for degradation of cGMP in the corpus cavernosum.


inhibits phosphodiesterase type 5, PDE5


Erectile dysfunction

Side Effects

carcinogenic, mutagenic
Serious cardiovascular events have occurred:
MI, TIA, HTN, ventricular arrythmia, sudden cardiac death
Dyspepsia 7%, flushing10%, headache16%, nasal congestion 4%

Drug-Vitamin-Herb Interactions




Fantastic new books!

Complementary and Alternative Medical Lab Testing is chock full of references for over 100 diseases.

Nutritional Genetics is also a referenced resource with sections on over 100 diseases.

Great Health Quotes has wonderful quotations about health, healing, disease, doctors, and medicine, and it's FREE.

A Brief Introduction to Naturopathy and Naturopathic Medicine describes the history and modalities. It's also FREE.



Natural Health







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