Herbs & Supplements

Viburnum opulus Scientific Name: Cramp Bark Other Names: Guelder Rose, Highbush Cranberry, Snowball Bush What side effects should I watch for? Side effects resulting from the use of cramp bark have not been reported in the medical literature. However, since few reliable studies involving the use of cramp bark have been conducted in humans, it may have side effects that are not yet known. Individuals who experience unexplained side effects while taking cramp bark should stop taking it and tell a doctor or pharmacist about the side effects. << Back What interactions should I watch for? >>

Note: The above information is not intended to replace the advice of your physician, pharmacist, or other healthcare professional. It is not meant to indicate that the use of the product is safe, appropriate, or effective for you.

In general, herbal products are not subject to review or approval by the U.S. Food and Drug Administration (FDA). They are not required to be standardized, meaning that the amounts of active ingredients or contaminants they contain may vary between brands or between different batches of the same brand. Not all of the risks, side effects, or interactions associated with the use of herbal products are known because few reliable studies of their use in humans have been done.

This information is provided for your education only. Please share this information with your healthcare provider and be sure that you talk to your doctor and pharmacist about all the prescription and non-prescription medicines you take before you begin to use any herbal product.