Passion Flower Herb Extract Side Effects

Passion flower extract has traditionally been used as a sedative and for gastrointestinal problems. And according to the National Institutes of Health, there is preliminary scientific evidence that passion flower extract may be effective in treating the symptoms associated with congestive heart failure, agitation, anxiety and insomnia. In most of the population, passion flower extract has few side effects but some may experience the following side effects.

Heartbeat

• Passion flower herb extract may cause rapid heartbeat.

Nausea

• Passion flower herb extract may cause certain users to feel nauseous or vomit.

Drowsiness

• Passion flower herb extract causes some users to feel drowsy or sedated, and can cause mental slowing. Do not operate heavy machinery if you experience these symptoms.

Bleeding

• Passion flower herb extract may reduce your body's clotting ability. It may also affect a blood test that measures clotting (international normalized ration - INR). Inform your doctor of your use of passion flower herb extract before this test is conducted.

Liver Failure and Death

• According to Medline Plus, a service of the U.S. National Library of Medicine and the National Institutes of Health, there has only been one reported case of liver failure and death. In this case, the patient used passion flower herb extract in conjunction with kava, which has been associated with liver damage.