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Calculations involved - ✔✔✔-- since controlled prescriptions have quantity and day supply
limitations, it is important to know how to calculate a prescription's days supply
-pharmacist ultimately responsible, but tech should know to catch inconsistencies before
reaching final check.
- most common opioids and MME conversion factors
-- morphine=1
--oxycodone=1.5
--hydrocodone=1
--codeine=0.15
- CDC website is a good resource
Calculations required - ✔✔✔-calculation relevant to CMEA of 2005:
a patient comes to the pharmacy counter to purchase psuedoephedrine HCl 30 mg(24.6 mg
base) tabs. each box consists of 24 tablets. What is the max number of boxes patient can legally
buy from pharmacy today?
3.6 gram daily limit = 3.6 grams= 3,600 mg
3600 mg/ 24.6 base mg per tablet = 146 tablets
each box contains 24 tablets, meaning this patient could legally purchase no more than 6 boxes
from your pharmacy today.
Controlled Substances - ✔✔✔-medications that carry a high risk for abuse and misuse
- highly regulated by the DEA and categorized into schedules based on level of potential abuse
- each pharmacy has a designated area (vault or locked cabinet) for certain controlled
medications are placed
DEA - ✔✔✔-comprehensive drug abuse prevention and control act of 1970 (controlled
substances act) -- handlers of all controlled substances need to maintain accurate and up to
, PTCB Federal Requirements Study Guide Exam with Questions and Answers –
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date records and inventory - helps keep pharmacy aligned with federal regulations as well and
prevent drug diversion and misuse
- Pharmacies and practitioners must be registered with the DEA for prescribing/dispensing a
controlled substance -- each given a unique DEA #
-- add first, third and fifth together
-- add second, fourth, and sixth together
-- multiply the sum in the second step by 2
-- add the total from steps 1 and 3 together
-- Verify that the second digit of the sum in step 4 is the same as the last digit in the DEA
number
- Prescription monitoring program to keep track of controlled substance history-- helps cut
down on polypharmacy doctor shopping and early fills
DEA controlled substance schedules - ✔✔✔-Schedule I drugs have the highest abuse potential
but are not on the market as they are not acceptable medical treatments and lack therapeutic
benefit
- Schedule II drugs have the highest abuse potential for medications currently on the market
- the risk for abuse and misuse lessens as the schedule number increases - schedule V drugs
have lowest risk
Dispensing - ✔✔✔-prescription only valid if written for legitimate medical purpose
- medication legally dispensed to the patient or member of household - if controlled substance
is dispensed to anyone else, it's called distribution
- federally issued identification is recorded at pharmacy
- no federal quantity limit on controlled prescriptions, but state law typically limits sII dispensing
to 30-day supply and sIII-V 90-day supply
- some states limit narcotic sII fills to a 7-day supply for acute pain and 30-day for chronic due to
opioid epidemic