Will promethazine hydrochloride get somebody high or just sleepy?

It might.: Even though this is used to counteract postnarcotic nausea and remedy motion sickness, it is also used as an antihistamine for allergies. This might affect individuals with a feeling of stimulation before the aniti-allergenic, sedative, anesthetic, and other qualities take effect. Many medications can affect individuals in unusaul ways, so somethiong like this is possible. See dr. To be sure.