Hawthorn berry extract concentrates the active flavonoids and proanthocyanidins of the hawthorn plant into a standardized dose. Capsules and liquid extracts deliver higher potency and more consistent active compounds than the raw herb. Taking it with a meal helps the body absorb it.
Hawthorn can interact with blood pressure medications, beta-blockers, and digitalis. Combined with antihypertensives, it may drop blood pressure further. Anyone with a heart condition or who takes prescription medications should talk to a doctor before using it.