Wanted: fewer side effects.
D000368:Aged; D002211:Capsaicin / Q000009:adverse effects / Q000191:economics; D016861:Cyclooxygenase Inhibitors / Q000009:adverse effects / Q000191:economics; D005252:Fees, Pharmaceutical; D006801:Humans; D008875:Middle Aged; D020370:Osteoarthritis, Knee / Q000188:drug therapy*
D016861:Cyclooxygenase Inhibitors; D002211:Capsaicin