Drug information of Yohimbine


Drug group:

Yohimbine increases the amount of blood that is allowed to flow into the penis and prevents blood from flowing out of the penis. It can cause an erection. Yohimbine is used to treat and diagnose some types of impotence.

Mechanism of effect

Yohimbine is a pre-synaptic alpha 2-adrenergic blocking agent. The exact mechanism for its use in impotence has not been fully elucidated.


Yohimbine blocks presynaptic alpha-2 adrenergic receptors.


Rapidly absorbed following oral administration. Bioavailability is highly variable, ranging from 7 to 87% (mean 33%).Yohimbine appears to undergo extensive metabolism in an organ of high flow such as the liver or kidney, however, the precise metabolic fate of yohimbine has not been fully determined. Elimination half-life is approximately 36 minutes.

Drug indications

Erectile Dysfunction


Usual Adult Dose for Erectile Dysfunction 5.4 mg orally 3 times a day. If side effects occur, reduce to 2.7 mg orally 3 times a day and titrate gradually up to 5.4 mg orally 3 times a day.

Side effects

Headache , dizziness , flushing , anxiety , Tremor


1-Yohimbine is contraindicated for use in patients with renal disease. 2-The manufacturer recommends against the use of yohimbine in geriatric patients, patients with a psychiatric diagnosis, or cardiorenal patients with a history of gastric or duodenal ulcer. 3-Safety and effectiveness have not been established in pediatric patients (less than 18 years of age)

Points of recommendation

1-Use caution when driving, operating machinery, or performing other hazardous activities. Yohimbine may cause dizziness. If you experience dizziness, avoid these activities 2-Use caution when rising from a sitting or lying position. Yohimbine may be more likely to cause dizziness when changing positions.

Pregnancy level


Ask a Pharmacist

User's questions
    No comments yet.