Urivron Tablet is unsafe to use during pregnancy as there is definite evidence of risk to the developing baby.Urinary tract bacterial infections are treated and prevented with Urivron tablets. The way Urivron Tablets function is by preventing the germs that cause UTIs from growing in the urine. Usually, this medication helps you feel better quite soon. Even when you feel better, you should keep taking it as directed to ensure that all bacteria are eliminated and do not develop resistance.