3 times a day medication schedule

Three times a day vs. every 8 hours

Both labels mean three doses. Two hospital pharmacies that publish their default times treat them differently, though. Three times a day lands at 9 AM, 2 PM and 9 PM, with all three doses between 9 AM and 9 PM. Every 8 hours lands at 8 AM, 4 PM and midnight, so one of those doses falls in the night.

UF Health's pharmacy bulletin says it plainly: "3 times a day" is not the same as "every 8 hours." Giving an oral medicine every 8 hours means waking the patient, which may or may not be necessary depending on the medicine. UF's bulletin says it uses these times whenever the prescriber doesn't write specific ones. So if a midnight dose turned up on hospital paperwork, check whether the order said every 8 hours, then ask whether that night dose has to come home with you.

Pick a first dose, get the other two

Medical News Today's pharmacists give 7 to 8 hours apart for three times a day (7 AM, 2 PM, 9 PM). This table uses 7. Start whenever your day starts:

When the gaps need to be even

For most medicines, three times a day means while you're awake. In their guide to giving a child medicine, AAFP's family doctors say "take every 8 hours" generally means three times a day too. The exceptions are the medicines that need a steady level in the blood. UConn's pharmacy names antibiotics, pain medicines and seizure medicines as the ones that work better at evenly spaced intervals. Medical News Today's pharmacists say some antibiotics may need a dose overnight.

If the bottle says three times a day and the medicine is one of those, ask the pharmacist one question: does this one need the night dose? If it does, use the every-8-hours chart instead.

Fitting it in with everything else

Three-times-a-day medicines are rarely the only ones in the house. In a 2011 study, Michael Wolf and colleagues handed 464 adults aged 55 to 74 a hypothetical seven-medicine regimen that fit into four dosing times. On average, they spread it across six times a day, and only 14.9% got it down to four or fewer.

The printout gives every medicine the same four times, the ones the Universal Medication Schedule uses: morning, noon, evening and bedtime. A three-times-a-day pill takes the morning, noon and evening spots. A once-a-day pill shares the morning spot, so nothing runs on a separate clock.

Questions about dosing 3 times a day

How many hours apart is 3 times a day?

About 7 to 8 hours while you're awake, for example 7 AM, 2 PM and 9 PM. Exactly 8 hours apart all the way around the clock is the stricter "every 8 hours" instruction.

Do I have to wake up at night for a 3 times a day medicine?

Usually not. Three times a day is normally given while you're awake. If the label says every 8 hours, or the medicine is an antibiotic or seizure medicine, ask the pharmacist whether the gaps have to stay even overnight.

What does TID mean on a prescription?

TID means three times a day. Like BID and QID, it comes from Latin, and pharmacists turn it into plain words on the bottle's label. You're more likely to see it on hospital papers than on a pharmacy label.

Can I take a 3 times a day medicine with meals?

Often, yes. Breakfast, lunch and dinner is a common way to keep three doses on track, and UF Health's pharmacy table gives doses with meals at 8 AM, noon and 5 PM. Some medicines have to be taken on an empty stomach, so check the label or ask the pharmacist.