Catuaba

It grows in northern Brazil in the Amazonian rainforest. The catuaba tree belongs to the family Erythroxylaceae, whose principal genus, Erythroxylum, contains several species that are sources of cocaine. Catuaba, however, contains none of the active cocaine alkaloids.
In herbal medicine catuaba has a long history of usage as an aphrodisiac. The Tupi Indians in Brazil first discovered the potency enhancing qualities of the plant and over the last few centuries they have composed many songs praising its wonders and abilities.
An infusion of the bark is used in traditional Brazilian medicine as an aphrodisiac and central nervous system stimulant. A bark decoction is commonly used for sexual impotency, agitation, nervousness, nerve pain and weakness, poor memory or forgetfulness, and sexual weakness.
Effect
Catuaba is an aphrodisiac. It stimulates sexual drive and increases libido in both men and women. It stimulates blood flow to the genitals, it can strengthen and prolong an erection, it enhances sexual excitement and gives more powerful orgasms.
Shortly after ingestion most people will feel a tingling sensation along the spine and a sensual feeling all over the body. The skin and genitals become more sensitive. It is very suitable for giving your love life a special impulse.
A group of three alkaloids dubbed catuabine A, B and C are believed to enhance sexual function by stimulating the nervous system.
In Brazil catuaba is also used to tone, balance, and calm the central nervous system.
Usage
In Brazil a standard infusion (bark tea) and an alcohol tincture are employed. Recommended usage is reported to be 1-3 cups of an infusion daily or 2-3 ml of a standard alcohol tincture twice daily.
Boil 1-2 tablespoons in half a liter of water for 15 minutes to get 2 cups of tea. When taken on an empty stomach the effects will occur in about half an hour.
For a stronger effect, mix 30 grams of catuaba with half a liter of liquor in a glass bottle. Leave it for 2 weeks, shaking it every day. A few sips should do the job.