Controlled substance and Methamphetamine hydrochloride

Controlled substance noun - A drug or chemical substance whose possession and use are controlled by law.

Methamphetamine hydrochloride and controlled substance are semantically related. In some cases you can replace phrase "Methamphetamine hydrochloride" with "Controlled substance", this phrases are similar.

Methamphetamine hydrochloride noun - An amphetamine derivative (trade name Methedrine) used in the form of a crystalline hydrochloride; used as a stimulant to the nervous system and as an appetite suppressant.

Controlled substance and methamphetamine hydrochloride are semantically related. Sometimes you can use "Controlled substance" instead a noun phrase "Methamphetamine hydrochloride".