rhodiola

Rhodiola (Rhodiola rosea) — also called arctic root, golden root, rose root, rosenroot, or king's crown — is a plant that grows in cold regions and at high altitudes in Europe, Asia, and North America. Its root has a history of traditional use (for purposes such as work performance, endurance, fatigue, and altitude sickness), and extracts are sold today as dietary supplements.

According to NCCIH, there isn't enough reliable evidence to determine whether rhodiola or its components are useful for any health-related purpose. Most of the research in people is of low-to-moderate quality, and NCCIH states it hasn't learned enough to say whether rhodiola is useful for any health-related purpose. The uses above reflect what rhodiola is traditionally used for or promoted for, not benefits that have been established.

There is no established standard dose; NCCIH does not specify a recommended amount. Safety data extend only to about 12 weeks of use (see Safety). Because the evidence is limited and product strength varies between brands, talk to your doctor or pharmacist before starting rhodiola — especially if you take medication, are pregnant or breastfeeding, or have a health condition.

NCCIH describes rhodiola as possibly safe when used for up to 12 weeks; its safety beyond that period has not been established. Little is known about whether rhodiola is safe to use during pregnancy or while breastfeeding.

According to NCCIH, possible side effects include dizziness, headache, and trouble sleeping, along with either a dry mouth or, conversely, excess saliva.

NCCIH notes that rhodiola has been reported to interact with losartan, a blood-pressure medication. Let your healthcare provider know about every supplement you take so they can check for possible interactions with your medicines.