alimentary tract and metabolism drug pathway analgesic and/or antipyretic drug pathway acetylsalicylic acid drug pathway 2015-02-12T13:47:42Z PW:0001613 The pharmacokinetics and pharmacodynamics pathway of acetylasalicylic acid, known as aspirin. It is a non-steroidal anti-inflammatory drug (NSAID) used as analgesic, antipyretic and antitrombic agent. Genetic variations can result in changes in drug availability and can cause differences in the response of the organism to the drug. aspirin drug pathway pathway vpetri antiplatelet drug pathway