I recently started taking Harvoni medication 4th day now. The doctors assistant advised me no to drink Herbal tea due to the fact that Herbal Tea has not been approved by the FDA. My question is it ok to drink Lipton tea I'm almost sure Lipton is approved by the FDA but haven't checked that out I know tea is a herb I'm waiting for a response from the doctors office I did ask them but the assistant wasn't in today so I thought I'd ask this question at drugs.com. Simple question and my guess is it's ok but will wait for a answer from someone who knows any help will be appreciated thanks for your time and help Enzo1956.