Synephrine

stimulant · nervous · cardiovascular · Oral

Synephrine, a stimulant. β3-adrenergic agonist with weaker α1 activity. Naturally in bitter orange (Citrus aurantium). Mild sympathomimetic —… Oral half-life 2 h.

β3-adrenergic agonist with weaker α1 activity. Naturally in bitter orange (Citrus aurantium). Mild sympathomimetic — cardiovascular effect smaller than ephedrine because of the para-OH; thermogenic in supplement formulations.