Antiviral drug and Medicinal drug

Antiviral drug noun - Any drug that destroys viruses.

Medicinal drug and antiviral drug are semantically related. In some cases you can use "Medicinal drug" instead a noun phrase "Antiviral drug".

Medicinal drug noun - (medicine) something that treats or prevents or alleviates the symptoms of disease.

Antiviral drug and medicinal drug are semantically related. Sometimes you can replace phrase "Antiviral drug" with "Medicinal drug", this phrases are similar.