Minor tranquillizer and Tranquilizer

Minor tranquillizer noun - A tranquilizer used to relieve anxiety and reduce tension and irritability.

Tranquilizer and minor tranquillizer are semantically related. In some cases you can use "Tranquilizer" instead a noun phrase "Minor tranquillizer".

Tranquilizer noun - A drug used to reduce stress or tension without reducing mental clarity.

Minor tranquillizer and tranquilizer are semantically related. Sometimes you can replace phrase "Minor tranquillizer" with "Tranquilizer", this terms are similar.