Elbert: Could I take your name and number, please? 3 days bactrim enough treat uti On Tuesday, the Medicines and Healthcare products Regulatory Agency (MHRA) warned people not to use a number of unlicensed Chinese medicines, including a product called Bak Foong Pills, which are used to treat menstrual pain. The medicine has been recalled in Hong Kong after it was found to contain up to twice the level of lead permitted by the Hong Kong Government.