Dextrorphan
article-link
What links here
Noscapine
Natural product
article-link
Papaverine
article-link
Papaver somniferum
article-link
Promethazine
article-link
List of drugs: Nj–Nz
article-link
ATC code R05
article-link
Opioid
article-link
Depressant
article-link
Cold medicine
article-link
Laudanum
article-link
Opium
article-link