Treatment of tension headache.
D006261:Headache / Q000628:therapy*; D006801:Humans; D009525:Niacin / Q000627:therapeutic use*; D009539:Nicotinic Acids; D018781:Tension-Type Headache
D009539:Nicotinic Acids; D009525:Niacin
HEADACHE/therapy; NICOTINIC ACID/therapeutic use