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Opioids Dosage Conversion

Opioids by Norris Vivatrat and Chris Marcellino is an opioid analgesic dosage conversion calculator for use by trained medical professionals. The application supports conversion to and from opioids commonly prescribed and used in U.S. hospitals orally, parenterally, or transdermally, including morphine, codeine, hydromorphone, hydrocodone, fentanyl, methadone, oxycodone and oxymorphone. The application is intended to help and instruct in the process of conversion of opioid regimens.
Category Price Seller Device
Medical Free Chris Marcellino MD LLC iPhone, iPad, iPod

• Native support for iPhone, iPad and iPod touch
• Choose between SCVMC and EPEC conversion models (see about tab)
• Multiple route support
• Multiple drug support
• Incomplete cross tolerance option
• Breakthrough dosing calculator
• Provides instructional details about each calculation
• Saves last calculation on exit
• Supports landscape and portrait modes
• Reference guide

By Professor EBM, the Internal Medicine Residency Teaching Resource for Evidence-Based Medicine: http://www.professorebm.com/, a resource of the Santa Clara Valley Medical Center.

While effort has been made to ensure that calculations are accurate and that conversion factors are in accordance with current accepted medical practices, use of this application is entirely at your own risk. This application should only be used by trained medical professionals and all results should be double checked by hand. Use of the app requires acceptance of the terms of use that are included with the application.

Please send support requests and feedback using the link in the About tab of the app.

Chris Marcellino, MD — Mayo Clinic
Norris Vivatrat, MD — UCSD Medical Center

Reviews

Excellent
Em md

This is a simple to use conversion system. Sure, I'd love to have this "in my head", but having it accessible on my IPad gives me an added measure of comfort knowing that I did it right, and covered all the factors in conversion, as well as keeping in mind renal and liver precautions. It is very doctor- friendly which is saying a lot; I'm not computer savvy. This is EASY! It will also probably be helpful to all the nurses in our hospice program as well. Many thanks for your good efforts! emc md


great app!
Sam md

this app is very easy to use and helpful. the explanations and reference chart are very informative.


MD
ctshu

Highly recommended! Very user friendly and tremendously useful for inpatient care.


Great, accurate, fast, useful, cool logo
mbokoch

Used this almost daily on the Medicine wards. Far superior to the one in MedCalc. Fast, accurate, and useful. It's clear that the authors spent a lot of thought and had expertise in this area. In particular, the links to the Reference material give you all the details you need to have confidence in dosing opiates. I was particularly impressed by the Methadone dosing, which is not easy to do, and not done accurately in MedCalc. Check out the "Rule of 15's" in the reference material


Missing some meds...
rachaelmua

And that's a problem. Period.


Prof. of anesthesia and pediatrics
Pedsanes

Nice interface design but limited drugs and (worse) limited dozing route (no iv fentanyl choice??) reduce the usefulness of this for inpatients.


Conversion
JGMD27

The oxycodone to morphine conversion is incorrect. It should be 2:3, not 1:1.


Dangerous conversion errors!
Frequent Travler

This conversion app is REALLY SCARY! I'm not sure where the table/reference is from but highly inaccurate! I truly hope no one is using this though the idea is great and a similar tool used to be on Epocrates. Most pain management prescribers know Morphine is half a potent as Oxycodone, Oxycodone 1/2-2/3 as potent as oxymorphone and it 1/2-2/3 as potent as hydomorphone.. ie morphine 60 mg=hydrocodone 60mg= Oxycodone 30mg=Oxymorphone 20=Hydromorphone 12= Fentanyl patch 25 mcg Patients will suffer and have major complications including death if anyone uses the current app for equal analgesic dosing! Please DON'T!


I use this app daily...
Pallimed Doc

and I tell all the residents and fellows who rotate with me to download it, with the caveat that the oxycodone conversion is wrong. My only wish is that the oxycodone to morphine ratio would be corrected to 2:3 so I don't have to manually recalculate it. Otherwise the opioid conversion are perfect for palliative medicine.


Easy to use conversion calculator - based on equianalgesic doses many docs use
Suzanakm

This calculator is easy to use, and references a commonly used equianalgesic dosing table. I recommend checking with your health-system to see whether this is the ratio card your institution uses. *it includes ratio options taught through EPEC - which is what major academic institutions use, including Institute for Palliative Care at San Diego Hospice. I disagree with the previous commentator suggesting it uses dangerous conversions.