Passion flower is an herbal supplement most often used to treat
anxiety and
insomnia, although it is sometimes claimed to be helpful for other purposes as well. Passion flower was once a common ingredient in over-the-counter (OTC) insomnia medications, but the FDA banned it from OTC medications in 1978 due to lack of evidence that it was safe and effective. Because herbal supplements are regulated differently (and less strictly), passion flower can still be used in herbal supplements in the United States.
(Click Benefits of Passion Flower for more information on what passion flower is used for, including additional passion flower uses.)
How Does Passion Flower Work?
It is not exactly clear how passion flower works. It seems that there are numerous different active compounds in passion flower, and researchers are not sure which of these compounds are responsible for the sedative-like properties of passion flower. Some of the compounds may act like benzodiazepines, a group of prescription anxiety and insomnia medications, such as
Valium® (
diazepam). Research also suggests that some of the passion flower compound may also act like opiates (medications like morphine). Passion flower appears to have the following benzodiazepine- or opiate-like properties:
- Reducing anxiety
- Causing sleepiness
- Relaxing muscles
- Stopping seizures
- Relieving pain.
Is Passion Flower Effective?
Passion flower might be effective for
anxiety or for limiting the symptoms of opiate withdrawal, although further research is needed to confirm the findings of early studies. There is not enough evidence to rate the effectiveness of passionflower for other uses.
Passion Flower Dosing Information
Passion flower is available in several different forms (extracts, powder, tea, etc.), and the dosing directions may vary for different products. Be sure to follow the specific instructions on your particular passion flower product.
Side Effects of Passion Flower
Many people believe that natural products, such as passion flower, have no side effects. However, many natural products cause side effects, some of which can be quite serious. Passion flower can cause side effects, such as:
- Dizziness
- Confusion
- Drowsiness
- Coordination problems.
(Click Passion Flower Side Effects to learn more, including potentially serious side effects that you should report immediately to your healthcare provider.)
Drug Interactions With Passion Flower
Some people may be more likely to experience problems due to passion flower. Therefore, you should talk with your healthcare provider before taking passion flower if you have:
- Liver disease, such as liver failure, cirrhosis, or hepatitis
- Kidney disease, such as kidney failure (renal failure)
- Seizures or epilepsy
- Any allergies, including allergies to food, dyes, or preservatives.
Also, let your healthcare provider know if you are:
Make sure to tell your healthcare provider about all other medicines you are taking, including prescription and non-prescription medicines, vitamins, and herbal supplements.
(Click Passion Flower Safety for more information, including any available passion flower warnings and precautions.)
What If I Take a Passion Flower Overdose?
It is not known exactly what to expect from a passion flower overdose. If you think you may have taken too much passion flower, seek medical attention immediately.
Passion Flower: Storage Methods
Refer to the label of your individual passion flower product for information on how to best store the supplement. Keep passion flower and all other medications or supplements out of the reach of children.
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