Passion Flower Dosage
Since a safe and effective dosage has not been established for passion flower, it may be best to start with a reasonable dose and see how your body responds to the supplement. If you develop any side effects, you may want to try a lower dose. If the supplement appears to be working, but not well enough, you could try a higher dosage.
It is important to note that unlike medications (for which the standard doses have been well established), there is less information for determining the best dose for supplements, including passion flower.
Although passion flower was once used in over-the-counter insomnia medications in the United States, the FDA banned it from such products in 1978, due to lack of evidence to suggest that passion flower was safe or effective (at any dose). However, since herbal supplements are regulated differently (and less strictly), passion flower can still be found in many herbal remedies. However, it is important that the FDA still believes that there is no evidence to suggest that it is effective or safe at any dosage.
Passion flower comes in several different forms, such as liquid extracts, powders, or even teas. The "recommended" dosages for these products may differ, due to differing potencies or other factors.
Since there is little evidence to guide you in your choice of a passion flower dosage, a good plan is to start with a reasonable dosage and see how your body reacts to that amount. If you find that you are groggy or dizzy (or are experiencing other passion flower side effects), maybe a lower dose would be better. If it seems to be working a little, but not quite well enough, maybe a higher amount (but not more than recommended on the label) would be right for you. A maximum safe dosage for passion flower has not been established.