医薬|いやくiyaku[1]atamadaka (head-high)

1. nounmedicine; (pharmaceutical) drug; medical treatment
2. nounmedical practice and dispensing of drugs

• Synonym薬剤やくざいWrittenWritten-style word for a prepared or compounded medicine; also covers chemical agents like pesticides. Seen in professional settings such as 「薬剤師」.
• Synonym医薬品いやくひんFormalFormal legal and industry term for drugs used to treat or prevent illness; in official documents it is more common than 「医薬」.
• Synonym薬品やくひんNeutralCovers medicines but also chemical reagents, so its range is wider than 「医薬」 and includes chemicals used in experiments.
• Synonym薬くすりNeutralThe everyday word for medicine. 「医薬」 leans written and usually appears in compounds like 「医薬分業」.
• RelatedメディスンNeutralLoanword for medicine, but rare in daily conversation; people normally say 「薬」, and 「医薬」 itself mostly turns up in compounds.

Everyday speech calls for 「薬」; formal and legal writing uses 「医薬品」. 「医薬」 itself is mostly a compound element, while 「薬品」 and 「薬剤」 serve for chemical agents and reagents.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

1. 病気びょうきを治療ちりょうするための薬品やくひん。
2. 医術いじゅつと薬品やくひん。