Damiana

Although damiana has achieved some repute in the treatment of sexual impotence, it is worthy of note that it is always given in conjunction with strychnine, phosphorus or some other stimulant; it is probably nothing more than a feeble tonic. Dose, one-half to one drachm (2-4 Gm.) of the leaves, either in the form of infusion or fluid-extract.

The Dispensatory of the United States of America Twentieth Edition (1918)

Herbal Medicine

Damiana is conventionally made into a tea. In herbal medicine, damiana is used to treat conditions ranging from coughs to constipation to depression. The herbal supplement is reputed to help with Fibromyalgia, energy, emphysema, low estrogen, frigidity, hot flashes, impotency, infertility, menopause, Parkinson's disease, PMS, inflammation of prostate, Lou Gehrig's disease, and more dealing with reproductive organs in both males and females.