Medication overuse is more than just taking too much.
Diener
H-C
HC
D000700:Analgesics / Q000009:adverse effects*; D017408:Guidelines as Topic; D020773:Headache Disorders / Q000139:chemically induced* / Q000145:classification* / Q000175:diagnosis; D006801:Humans; D001523:Mental Disorders / Q000139:chemically induced* / Q000145:classification* / Q000175:diagnosis; D013577:Syndrome
D000700:Analgesics