YA guide. World in our photo voltaic system. Two teens sealed in a very plant with flashlight. Oxygen from photosynthesis will save their lifeThe chemical composition of xylazine carefully resembles that of phenothiazines, tricyclic antidepressants, and clonidine. Xylazine is in the same drug class as clonidine, lofexidine, and dexmedetomidine and