Antagonism by caffeine of the respiratory effects of codeine and morphine.
D002110:Caffeine / Q000494:pharmacology*; D019069:Cell Respiration; D003061:Codeine / Q000037:antagonists & inhibitors*; D006801:Humans; D009020:Morphine / Q000037:antagonists & inhibitors*; D012119:Respiration / Q000494:pharmacology*
D002110:Caffeine; D009020:Morphine; D003061:Codeine
CAFFEINE/pharmacology; CODEINE/antagonists; MORPHINE/antagonists; RESPIRATION/pharmacology