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  • Acetaminophen

Acetaminophen

(TYLENOL, FEVERALL, TEMPRA)

WHAT IT’S USED FOR

Acetaminophen reduces fever and it relieves the pain of teething, earache, sunburn, cuts, bruises, headache, etc.

DOSAGE

7 mg per pound every 4 hours. The dosage we use is 7 milligrams per pound of bodyweight (for metric users, that’s 15mg per kilo). For example: a 22-pound child would get 154 mg (22×7=154). This is about one-teaspoon of children’s liquid. Don’t worry about giving 160mg instead of 154mg – the difference is minimal. This dose can be given every four hours, or realistically, five times a day.

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DR. SEARS HELPFUL HINTS

  • Acetaminophen starts taking effect within 45 to 60 minutes and should last four hours. If it wears- off too soon, then use a dose of Ibuprofen.
  • For very high or stubborn fevers, alternate between Acetaminophen and Ibuprofen every three hours (i.e., give a dose of acetaminophen then three hours later give ibuprofen then three hours later acetaminophen, etc.). These two medications are safe to use together like this.
  • 1 tsp (5ml) of children’s liquid contains 160 mg of acetaminophen.
  • Feverall brand suppositories are a good alternative if the child is vomiting, or is very resistant to take medicine by mouth. The suppositories can be cut-up to get the proper dose.
  • Some packages come with a cup that is “measured” in child’s weight or age – these cups will under dose so you should use your own dropper or cup that measures in teaspoons or milliliters.

SAFETY/SIDE EFFECTS

Acetaminophen has been safely used in children for many years. There are minimal side-effect concerns in a healthy child and it has a high safety margin. If given at the proper doses, it is safe to use “around the clock” for several days.

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INTERACTIONS

Acetaminophen can be used along with any antibiotic, cold or cough remedy (providing Acetaminophen is not one of the ingredients).

HOW SUPPLIED

(see dosing chart below)

  • Children’s liquid 160mg/5ml
  • Chewable tablets 80mg or 160mg
  • Junior strength caplets 160mg
  • Rectal suppository (Feverall brand) 80mg, 120mg, 325mg (may be cut for proper dose)

A study in 2001 has shown that giving an initial double dose of acetaminophen for high fevers is both safe and more effective to bring down that high fever fast. Only give a double dose if the fever is high. You can only give a double dose once every few days if needed. Any other doses should be the regular dose.

ACETAMINOPHEN ORAL DOSING CHART

Dose is every 4-6 hours. When treating fever or pain, I like to use a “strong but safe” dose so your child will feel better sooner. I have designed this chart with narrow weight ranges so you can give the best dose. Dosing chart for suppositories is below regular chart.

Weight:Milligram DosageInfant Drops 80mg/0.8mlChildren’s liquid 160mg/5mlChildren’s
soft chews
80mg each
Junior strength Caps or chews 160mg each
5-8 lbs40mg½ dropper
(.4ml)
¼ tsp
(1.25ml)
N/AN/A
9-10 lbs60mg¾ dropper
(.6ml)
1/3 tsp
(1.8ml)
N/AN/A
11-16 lbs80mg1 dropper
(.8ml)
½ tsp
(2.5ml)
N/AN/A
17-21 lbs120mg1 ½ droppers
(1.2ml)
¾ tsp
(3.75ml)
N/AN/A
22-26 lbs160mg2 droppers
(1.6ml)
1 tsp
(5ml)
2 tablets1 tablet
27-32 lbs200mg2 ½ dropper
(2ml)
1 ¼ tsp
(6.25ml)
2 ½ tablets
33-37 lbs240mg3 droppers
(2.4ml)
1 ½ tsp
(7.5ml)
3 tablets1 ½ tablet
38-42 lbs280mg3 ½ droppers
(2.8ml)
1 ¾ tsp
(8.75ml)
3 ½ tablets
43-53 lbs320mg4 droppers
(3.2ml)
2 tsp
(10ml)
4 tablets2 tablets
54-64 lbs400mgUse Liquid2 ½
tsp(12.5ml)
5 tablets2 ½ tablets
65-75 lbs480mg3 tsp
(15ml)
6 tablets3 tablets
76-86 lbs560mg3 ½ tsp
(17.5ml)
7 tablets3 ½ tablets
87-95 lbs640mg4 tsp
(20ml)
8 tablets4 tablets
>95 lbsGive Adult Dosage

DOSING CHART FOR ACETAMINOPHEN SUPPOSITORIES

You will notice these doses tend to be a little higher than if given orally. This is safe for two reasons:

  1. Suppositories are absorbed less consistently than an oral dose.
  2. Suppositories are meant for short-term use (just while your child can’t tolerate oral intake) and giving a little higher dose for one day will not be harmful.

Doses are every 4-6 hours

WeightSuppository
120mg each
Suppository
325mg each
12-17lbs1 suppository
18-23lbs1 ½ suppository
24-37lbs2 suppositories
38-60lbs1 suppository
61-90lbs1 ½ suppository
>90lbs2 suppositories
August 28, 2013 March 12, 2024 Dr. Bill Sears
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