Norpseudoephedrine may refer to:
- Cathine (or <small>D</small>-norpseudoephedrine), the (+)-enantiomer and most widely known form of the compound
- <small>L</small>-Norpseudoephedrine, the (-)-enantiomer of the compound
- , the racemic mixture of the compound
See also
- Pseudoephedrine