Norpseudoephedrine may refer to:
- Cathine (or D-norpseudoephedrine), the (+)-enantiomer and most widely known form of the compound
- L-Norpseudoephedrine, the (-)-enantiomer of the compound
- (±)-norpseudoephedrine , the racemic mixture of the compound
Norpseudoephedrine may refer to: