Possible Clues:

• Post-op dose
• Size between sm. and lge.
• ___ mal (tort reform topic, briefly)
• The 'M' of M.D.: Abbr
• Pre-__ major
• Doctor's order, for short
• 'Tullius' in Marcus Tullius Cicero
• Info on a script
• ___ school (doctor's training)
• Size below 79-Down: Abbr