I am hoping someone can help me. Due to the lovely weather we have been having in the midwest, I only received a very very brief description on how to calculate approximate equivalent dosages of medications allowed for a hospice client. ex: My client has taken 14 Lortab 5/325 in the past 24 hours The Rn needs to call the doctor and request an order for MS Contin--MSIR. I have been asked to calculate approximate equivalent dosages of oxycodone and morphine in an equianalgesic table. Please help! I am not sure how to correctly convert. What would be a good teaching plan for 24 hour administration? Thanks for any help or advice!