Common side effects of Yohimbe include dizziness, anxiety, irritability and nervousness, according to Drugs.com. Some people may experience tremors after taking Yohimbe, and it can also cause headache and skin flushing.
Less common but serious side effects that are associated with Yohimbe include confusion, irregular behavior, and a fast or irregular heartbeat, notes Drugs.com. Some people may be allergic to Yohimbe. Signs of an allergic reaction include closing of the throat; struggling to breathe; hives; and swelling of the face, tongue or lips. If these or other side effects occur, it is important to seek immediate medical assistance.
It is possible to overdose on Yohimbe, notes Drugs.com. Signs of an overdose include confusion, abnormal behavior, poor coordination and a fast heart rate. Other signs of an overdose include numbness, tingling, tremors and runny nose. Someone overdosing on Yohimbe may have increased blood pressure, which is evidenced by blurred vision, flushing and a severe headache.
Yohimbe is usually taken three times daily, and it is important to take it exactly as directed by a doctor, according to Drugs.com. Each dose should be swallowed with a whole glass of water. If a dose of Yohimbe is missed, it should be skipped.
People with kidney disease or any type of heart disease should speak to a health care professional before taking Yohimbe, states Drugs.com. Those who are being treated for a psychiatric condition, have depression or have stomach ulcers should speak to a physician before using Yohimbe. Women and children should not take Yohimbe.