Dendrobine is an alkaloid found in Dendrobium nobile at an average of 0.5% by weight.

[1] It possesses a molecular structure that attracted interest in its total synthesis by organic chemists.

The structure of dendrobine is intriguing due to its tetracyclic ring system with seven contiguous stereocenters.

The minimum lethal doses by intravenous injection are 20 mg/kg for mice and rats, 22 mg/kg in guinea pigs, and 17 mg/kg in rabbits.

[3] Dendrobine is a strongly selective competitive antagonist of β-alanine, taurine, and glycine.