text: does chlorzoxazone contain aspirin? i am deathly allergic to aspirin, does chlorzoxazone contain it? no. chlorzoxazone does not contain asprin.   the clinical properties of chlorzoxazone are as under -  trade name - parafon® forte tablets  composition: each tablet contains chlorzoxazone 250 mg and paracetamol 300 mg  pharmacological classification: a2.8 analgesic combinations and a3 2 non-hormonal preparations.  indications: parafon forte tablets are indicated for the relief of severe skeletal muscle spasm and pain associated with such medical and orthopaedic problems as: sprains and strains, myalgias, torticollis, tension headaches, traumatic muscle injuries, low back pain, fibrositis, cervical root and disc syndromes.  the drug is prescribed mainly as muscle relaxation and for other analgesic therapies.-