yohimbine presumed aphrodisiac molecule.

yohimbine presumed aphrodisiac molecule chemical chemistry science scientific structure atoms atomic compound molecular computer model yohimbin stimulant impotence sexual dysfunction libido sex drive erectile post traumatic stress disorder ptsd pausinystalia yohimbe corynanthe rauwolfia serpentina indian snakeroot alkaloid are represented as spheres conventional color coding hydrogen white carbon grey oxygen red nitrogen blue