I have a sinus infection and prescribed prednisone 20 mg twice a day but idk how many hours apart to take it. doesn t say on the bottle.?

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answers:
Chihuahua Addict Adores Scooby say: If you take it 2 times a day, you take it every 12 hours.
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Jim Moor say: Twice a day means "about" 12 hours apart. I personally would do 8am & 8pm, but it could easily be 10am & 6PM if that's your awake hours.

Q12H means every 12 hours. This is not the same as twice-daily (bid or BD). <<< So just spread out over your waking hours!

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A more common problem is:
QID (Take 4 Times Daily) and Q6H (Take Every 6 Hours)

One distinction in medication instructions is when a medication is prescribed at a specific time interval, or instead, is written as a number of doses to be taken daily. An example would be a prescription that is prescribed QID (translated to mean take the medication four times a day,) and q6h, which would mean to take the medication every six hours. What is the difference?

When a medication is prescribed QID (4 times a day) it is most often assumed that the medication will be taken 4 times a day spread out over waking (AWAKE) hours. However, this is something to clarify with your physician or pharmacist if it isn't spelled out.
A prescription prescribed q6h (every 6 hours) is usually designed to be taken every 6 hours, even if you have to set an alarm and wake up to make sure you follow this schedule.
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R K say: 12 hours apart.
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say: Twice a day = 12 hours apart.

Ish.
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heather say: also would 3 days on this cause any long term side affects?
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say: once in the evening and once during the day I would think to be ok,but check with your'e doctor to be sure
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Doodle say: Call the pharmacy and ask them.
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