paracetamol acetaminophen analgesic drug molecule. non-steroidal anti-inflammatory drugs, structural chemical formulas

abstract acetaminophen ache analgesic antipyretic apap aromatic atom atomic background bond carbon chemical chemistry cold compound drug element fever flu formula formulation headache health hydrogen icon illustration medical medication medicine model molecular molecule nitrogen nsaid overdose pain paracetamol paracetamole science sign structural structure symbol tablet toxic treatment vector white