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In medical terminology "q" means 'every'

So if a doc writes a prescription that reads 'take 2 tabs q 4 hrs"

he means for you to take 2 tablets of the medicine every 4 hours

Not sure if it is different in USA/UK/Australia etc but in UK terminology is generally as follows:

od - Once Daily

bd - twice a day

tds - three times a day

qds - four times a day

mane - in the morning

nocte - at night

prn - when required

In my pharmacy experience q does NOT mean 'every' but this may differ in other countries.

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13y ago

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