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What Are OD, BD, And SOS In Medical Terms? Best Nephrologist In Delhi | Dr Rajesh Goel | Kidney Care Centre

These terms are used as frequency of dosage i.e. how many times a patient has to take medicine.

TDS Meaning In Prescription: TDS is an abbreviation that means “Three Times a Day.

HS Means In Medicine Dose:- HS is an abbreviation that means “At Bedtime.”

SOS means When it is needed as per say SOS Paracetamol is when patient feels like he is having fever.

Let’s Wrap It Up!

OD: Once a Day. You must take medicine once a day at the same time.

BD: Twice a Day. You must take medicine two times a day at the same time.

TDS: Three Times a Day. You must take medicine three times a day at regular intervals.

SOS: As Needed. You must take medicine only when you need it.

HS: At Bedtime. You must take medicine at night before bed.