Tylenol with codeine crampsTylenol with codeine cramps. Acetaminophen (Tylenol) is the least effective . the possibility of withdrawal symptoms, such as abdominal or stomach cramps . It's a muscle relaxer. . . . . . . . . end up saving them and using them when I have bad menstrual cramps . you really should use ibuprofen. Is it normal having bad cramps when u are having a misca. . . I can't take Codeine . . . . . . Stop muscle pain and back pain with Robaxin, Robaxacet, Generic Tylenol with co... more