Headache & Pain
Medications and substances causing headache
Aug. 12, 2023
Nearly 3,000 illustrations, including video clips of neurologic disorders.
Every article is reviewed by our esteemed Editorial Board for accuracy and currency.
Full spectrum of neurology in 1,200 comprehensive articles.
Listen to MedLink on the go with Audio versions of each article.
The bold arrows indicate the direction of causality. The thin crossed arrow indicates that there is no causal relationship. (Contributed by Dr. Douglas J Lanska.)