"A new consumer-friendly form ( is now available for making reports to MedWatch, the Food and Drug Administration's (FDA) on-line system for collecting information about serious problems with drugs, medical devices and other FDA-"...
Adverse effects of UREX (methenamine hippurate) have been reported in fewer than 3.5% of patients treated.
Children have received UREX (methenamine hippurate) at the recommended dosages as a prophylactic/suppressive regimen after initial treatment of acute episodes of pyuria. Side effects were encountered in only 1.1% of these children.
Read the Urex (methenamine hippurate) Side Effects Center for a complete guide to possible side effects
The concomitant administration of methenamine hippurate and sulfamethizole or sulfathiazole is liable to result in formation of a precipitate in the urine.
Last reviewed on RxList: 3/28/2008
Additional Urex Information
Urex - User Reviews
Urex User Reviews
Now you can gain knowledge and insight about a drug treatment with Patient Discussions.
Report Problems to the Food and Drug Administration
You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.
Find out what women really need.