aspirin combinations
drug mixtures that include aspirin as one of the components, the others commonly being other analgesics (e.g., acetaminophen, codeine, propoxyphene), stimulants (usually caffeine), or both. Aspirin combinations may also include a barbiturate (e.g., butalbital), a skeletal muscle relaxant (e.g., carisoprodol, orphenadrine), or other drugs. Because many of these preparations can be obtained without a doctor’s prescription, individuals with the habit of regular self-medication are at risk of developing gastrointestinal symptoms (e.g., peptic ulcer) and other toxic reactions (see salicylism; caffeine intoxication).