Uva Ursi Standardized Extract 60 CP Latin Name Arctostaphylos uva-ursi Description Nature's Way standardized Uva Ursi is a Scientifically advanced herbal extract standardized to 20% arbutin, the constituent which is the primary focus of the herbs therapeutic effects. Usage Uva Ursi leaves were officially a drug for urinary antiseptic in the U.S. Pharmacopoeia and the National Formulatory from 1820 until 1950. It was first used by Welsh physicians in the 13th century.* Recommended Daily Dosage Take two capsules two times daily with water at mealtimes. This product is not recommended for long term use.