Pharmacy Times – October 2007


Drug Interactions: Insights and Observations


DIPS: A Tool to Evaluate Causation in Potential Drug Interactions


John R. Horn, PharmD, FCCP and Philip D. Hansten, PharmD




  1. Horn JR, et al. How to Assess Drug Interaction Case Reports. Pharmacy Times. 2006;72(August):26.
  2. Naranjo CA, et al. A method for estimating the probability of adverse drug reactions. Clin Pharmacol Ther. 1981;30:239-45.
  3. Hansten PD, Horn JR. The top 100 drug interactions; a guide to patient management. 2006 Edition. Freeland, WA: H&H Publications, LLP, 2007:235-6.
  4. Horn JR, et al. Proposal for a new tool to evaluate drug interaction cases. Ann Pharmacother. 2007;41:674-80.