On call. I have a long history of tension headaches and usually get relief by taking acetaminophen. Lately, the medication relieves the headache, but then the pain returns later in the day. Can acetaminophen lose its effectiveness, or could it be something else?
William
W
Kormos
D000082:Acetaminophen / Q000627:therapeutic use*; D018712:Analgesics, Non-Narcotic / Q000627:therapeutic use*; D004305:Dose-Response Relationship, Drug; D004361:Drug Tolerance; D015438:Health Behavior; D006801:Humans; D012008:Recurrence; D018781:Tension-Type Headache / Q000188:drug therapy*
D018712:Analgesics, Non-Narcotic; D000082:Acetaminophen