Drug classification : P2

Paracetamol: P2

Phenylephrine: NP

Noscapine: NP

Bromhexine: NP

Caffeine: NP

Note how apart from paracetamol, the other drugs are NP. The main one to note is phenylephrine, which is related to ephedrine and pseudoephedrine which are P1, and phenylpropanolamine which is P1S1.

https://www.drugoffice.gov.hk/eps/drug/productDetail/en/pharmaceutical_trade/146295

https://www.drugoffice.gov.hk/eps/drug/productDetail/en/pharmaceutical_trade/130482