Drug Information by Gold Standard, www.goldstandard.com Written by pharmacists who have been formally trained in drug information, MedCounselor Consumer Drug Information content provides up-to-date, peer-reviewed consumer relevant information on all US prescription drugs, herbal supplements, nutritional and over-the-counter products. On this page: Kava kava o Piper methysticum en sus formas de dosificación oral to Kit de interferón alfa-2b y ribavirina.