Frequency and timing
q6h
every 6 hours
Every six hours, around the clock — four doses a day at fixed intervals. Not the same as QID, which means four times during waking hours.
How it gets tested
The classic pairing item: q6h versus QID. Both are four a day; only q6h spaces them evenly through the night.
Quick check: q6h
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What does q6h stand for?
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