Bilberry is available in various forms, including liquid extract, capsules, and jam. Dried bilberry fruit is made into a tea to treat diarrhea and to relieve inflammation of the mouth and throat. Follow the directions printed on the product label or given by your doctor. There are no known side effects of bilberry or interactions with other medicines. The effect of taking large amounts of bilberry is not known.
Some natural remedies have the same effects as prescription medicines.
This means there is a danger of being overmedicated. If you have any unusual effects while taking any natural remedy, get advice from a doctor right away. Natural remedies and prescription medicines may interact. Lack of standardization may result in products with different strengths and effects. Lack of quality control may allow contamination of products.