headache medicine; headache pill
General term for medication taken to relieve a headache, including tablets, powders, and liquids.
After taking headache medicine, I felt better right away.
Over-the-counter headache pills are often enough.
風邪薬 is cold medicine, whereas 頭痛薬 is specifically for headaches.
Compound of 頭痛 (headache) and 薬 (medicine).