1. Pre-Lab Instructions, Chapter 3 Filling and Labeling the Prescription

2. Prescription Filing Systems Three-file system –Schedule IIs separately –Schedule III–Vs in a second file –Noncontrolled drugs in third file Two-file system –Schedule IIs in one file –Scheduled III–Vs in second file –Alternative two-file system: place all Schedules II–V in one file and all noncontrolled drugs in another

3. Prescription Filling Concerns Regulations for schedule drugs –Schedule II—no refill –Schedule III–V—max refill 5 times in 6 months Auxiliary labels –Take with food –May cause drowsiness OBRA 98—offer to counsel Expiration dates—12/07 expires 12/31/07 Read label three times

4. DEA Number Verification Add first, third, and fifth digits Add second, fourth, and sixth digits & multiply by 2 Add the above two results together The last digit of the resulting sum should be the same as the last number in the DEA number The second letter of the DEA should be the first letter of the prescriber’s last name If the number does not pass these checks, notify pharmacist

5. Dosage Calculation Check for reasonable dose –Manufacturer recommendations Pediatric dosing –Clark’s rule –Fried’s rule –Young’s rule –BSA Maximum recommended dose Minimum dose Dosage range

6. Locating Package Insert Information Black box warning NDC number Dosage forms Manufacturer recommended doses Contraindications Route of elimination Pregnancy category