noun
prescription drug; prescription medication
A drug that legally requires a doctor's prescription; contrasts with OTC (over-the-counter) drugs.
この薬は処方箋医薬品なので、医師の処方箋が必要です。
This medicine is a prescription drug, so you need a doctor's prescription.
Compound of 処方箋 (prescription) + 医薬品 (medical drug).