Methods and compositions for reducing bladder spasms are disclosed. The methods comprise administering to a subject in need thereof a pharmaceutical composition comprising an effective amount of acetaminophen and an effective amount of at least one non-steroidal anti-inflammatory agent (NSAID). In another embodiment, a method for reducing bladder spasms comprising administering to a subject in need thereof a pharmaceutical composition comprising an effective amount of at least one prostaglandin (PG) pathway inhibitor, wherein the at least one PG pathway inhibitor is not acetaminophen or an NSAID.
