noun
A drug that is equivalent to a brand-name drug in dosage, strength, and performance, but is typically sold under its chemical name.
後発医薬品は先発医薬品より安いことが多い。
Generic drugs are often cheaper than brand-name drugs.
Compound of 後発 (こうはつ, 'late launch') + 医薬品 (いやくひん, 'medical drug'), referring to a drug that enters the market after the original brand-name drug's patent expires.