Birth Control Guide: Guide to Pills, IUDs & Side Effects

Choosing the right form of birth control involves weighing the advantages of IUDs against the pill, while managing side effects like nausea and spotting.

How Do AZO Pills Work?

Published Aug,14 2017 | By Heidi Wiesenfelder

Azo is the brand name for phenazopyridine hydrochloride. It is also available under other names including Uristat and Pyridium. Azo acts as an analgesic within the urinary tract, so it is commonly recommended for individuals with urinary discomfort from a urinary tract infection (UTI) or recent catheter use.

Heidi Wiesenfelder received her Ph.D. from Vanderbilt University, and since 1990 has published research papers in the Journal of Neuroscience, Visual Neuroscience, and Visual Perception. She is a certified Six Sigma Black Belt (process improvement expert) and a consultant to small businesses and nonprofits. She has held leadership roles in animal welfare organizations and educates people about animal health and nutrition.