Definition. - The glandular trichomes separated from the fruit of Humulus Lupulus L.

Description and Properties. - Bright, brownish-yellow, becoming yellowish-brown, resinous, consisting of minute glands which under the microscope are seen to be subglobular, or, rather, hood-shaped, and reticulate - aromatic and bitter.

Dose of Lupulin. - 5-30 grains (0.3-2.0 Gm.).