new concerns about using Viagra (sildenafil) in patients taking HIV protease inhibitors

August 1999

There are new concerns about using Viagra (sildenafil) in patients taking HIV protease inhibitors.

Protease inhibitors slow Viagra metabolism...leading to significantly higher and more prolonged levels.

Saquinavir (Invirase) can DOUBLE plasma levels of Viagra...ritonavir (Norvir) can cause a 4-fold increase.

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Table of Contents

spironolactone (Aldactone) is beneficial for heart failure has been all over the press
Asthma New precautions are being added to the patient information leaflets for Singulair (montelukast)
Asthma Oral prednisone is as effective as IV methylprednisolone for treating acute asthma
Osteoporosis Fosamax (alendronate) is now approved for the treatment and prevention of osteoporosis caused by chronic glucocorticoids
Women's Health Preven Emergency Contraceptive Kit will soon be available in both the U.S. and Canada
Infectious Diseases Cipro HC (ciprofloxacin/hydrocortisone) otic suspension
Infectious Diseases new drug for HIV, Ziagen (abacavir)
Infectious Diseases just two doses of nevirapine (Viramune) can reduce the risk of transmitting HIV
Angina new guidelines for treating chronic stable angina
Renal & Urology new concerns about using Viagra (sildenafil) in patients taking HIV protease inhibitors
Renal & Urology Natural products containing L-arginine are now being promoted for sexual dysfunction
new health claims for whole grain foods
potential interactions with HERBS in patients on digoxin
Pediatrics reduce or eliminate thimerosal as a preservative in pediatric vaccines
Dermatology Some commonly-used drugs can cause hair loss
Asthma Children with asthma tend to have a higher risk of cavities
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