Answer
Yes, ephedrine hydrochloride is contraindicated in combination with pseudoephedrine or methylphenidate, which are indirect sympathomimetic agents.
Sources for this answer
- Ephedrine Hydrochloride 3 mg/ml Solution for Injection in Pre-filled SyringeAguettant Ltd · emc · SmPC §4.3 Contraindications · Version 4Document updated
Sources checked