Attached is a quick article with links to on-line drug interaction sites. These sites are designed to help you make sure that your prescription medications, over-the-counter remedies and herbs or supplements are safe to take together. When you read this remember to contact your prescriber or pharmacist if you have any concerns. Many medications will say there is a risk for interaction but the interactions are dose dependent. Additionally, many medications should not be stopped abruptly without the guidance of the prescriber.
http://news.consumerreports.org/health/2013/06/where-can-i-look-up-drug-interactions.html?EXTKEY=NB36S00H