PrescriptionUsageandDosageinEnglishabbreviations:-TDS:Threetimesaday(terdiesumendum)-BD:Twiceaday(bisindie)-OD:Onceaday(omnidie)-QID:Fourtimesaday(quaterindie)-Q12h:Every12hours-SOS:Asneeded(siopussit
Prescription Usage and Dosage in English abbreviations:
- TDS: Three times a day (ter die sumendum)
- BD: Twice a day (bis in die)
- OD: Once a day (omni die)
- QID: Four times a day (quater in die)
- Q12h: Every 12 hours
- SOS: As needed (si opus sit)
- HS: At bedtime (hora somni)
- PRN: As needed (pro re nata)
- Q4h: Every 4 hours
- Q6h: Every 6 hours
- Q8h: Every 8 hours
