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Side Effects of Coleus Forskohlii

Coleus forskohlii is a perennial herb that grows in subtropical areas of Asia. The root extract, forskolin, is used for a variety of health conditions. Side effects are few and uncommon.

  1. Uses

    • Coleus forskohlii is increasingly included in weight-loss supplements, as it is claimed to stimulate metabolism and prevent development of fatty tissue. Forskolin also may inhibit histamine release, increase thyroid function and promote cardiovascular health.

    Expert Insight

    • Baylor University researchers found no clinically significant side effects from Coleus forskohlii supplementation in a study published in a 2005 issue of the Journal of the International Society of Sports Nutrition.

    Reported Side Effects

    • Low blood pressure (hypotension) and rapid heart rate (tachycardia) have been reported by some Coleus forskohlii users, according to the Memorial Sloan-Kettering Cancer Center.

    Contraindications

    • Some people may have allergic skin reactions to Coleus forskohlii. People with stomach ulcers should not take this herb because it can increase stomach-acid levels.

    Drug Interactions

    • Coleus forskohlii can interact with drugs used to treat certain health conditions. These include drugs for allergies, colds, asthma, heart disease and high blood pressure.

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