93 542 is 500 mg chlorzoxazone - generic Parafon Forte® DSC. It's a muscle relaxant.
More info:
http://chlorzoxazone.drugs.com/
And more info on interactions from Eckerd:
What drug(s) may interact with chlorzoxazone?
â¢alcohol and alcoholic beverages
â¢baclofen
â¢barbiturate medicines for inducing sleep or treating seizures (convulsions), such as phenobarbital
â¢disulfiram
â¢dronabinol, THC
â¢entacapone
â¢isoniazid, INH
â¢kava kava
â¢medicnes for hay fever and other allergies
â¢medicines for mental depression, anxiety or psychotic disturbances
â¢medicines to treat sleeping problems (insomnia)
â¢prescription medicines for pain
â¢simvastatin
â¢tolcapone
â¢valerian
Tell your prescriber or health care professional about all other medicines you are taking, including non-prescription medicines, nutritional supplements, or herbal products. Also tell your prescriber or health care professional if you are a frequent user of drinks with caffeine or alcohol, if you smoke, or if you use illegal drugs. These may affect the way your medicine works. Check with your health care professional before stopping or starting any of your medicines.