Tylenol 3 is known generically as acetaminophen with codeine phosphate. It delivers 300 mg of Tylenol and 30 mg of codeine in a tablet form. Tylenol 3 is indicated for the relief of mild to moderate pain and is a C-II controlled substance. Many foods can cause symptoms such as hives, acid reflux and migraines. Those suffering from such symptoms could be dealing with histamine intolerance. Acetaminophen is the generic name for Tylenol, a pain reliever and fever reducer. It's one of the most widely used pain medications in the world. Feel Better For Less. OTC Cold Medicine, Pain Relievers, Cough Drops & Cough Syrup. Get Cases of OTC Flu Medicine And More From Dollar General. Warnings. This medication contains acetaminophen. Do not take Tylenol, Tylenol Arthritis Pain, Tylenol Ext, Little Fevers Children's Fever/Pain Reliever, Little Fevers Infant Fever/Pain Reliever, or PediaCare Single Dose Acetaminophen Fever Reducer/Pain Reliever if you are allergic to acetaminophen or any ingredients contained in this drug. Pictures of Tylenol (Acetaminophen), drug imprint information, side effects for the patient. Tylenol Cold & Flu Severe. Generic Name: acetaminophen, dextromethorphan, guaifenesin, and phenylephrine (a SEET oh MIN oh fen, DEX troe me THOR fan, gwye FEN e sin, FEN il EFF rin) Hives vs Rash. Urticaria which is more commonly termed as hives is a particular kind of skin condition characterizing visible deep red bumps that are raised and very itchy. Diphenhydramine is an antihistamine mainly used to treat allergies. It is also used for insomnia, symptoms of the common cold, tremor in parkinsonism, and nausea. It is used by mouth, injection into a vein, and injection into a muscle. Maximal effect is typically around two hours after a dose, and effects can last for up to seven hours. Easy-to-read patient leaflet for Tylenol Cold. Includes indications, proper use, special instructions, precautions, and possible side effects.