But, well, there's almost nothing to worry about. Those patients who take 3-4 250 (350) mg pills a day usually don't develop tolerance, so if you take exactly as much as your doctor prescribed, you will most likely feel the advantages of the medicine, not the problems. bookerbest.co.uk/ Carisoprodol is a muscle relaxant that is used to treat various medical conditions. It is also used as a recreational drug. The dosage and uses of Carisoprodol are different for each condition or use.