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Summit Pediatrics

Medicine Dosages Charts

Acetaminophen (Tylenol) Dosage
Weight Age Infant's Oral Suspension* 160 mg (in each 5 mL) Use included syringe Childrens's Oral Suspension 160 mg (in each 5 mL or 1 tsp) Teaspoon Children's Soft Chewable Tablets 80mg each Tablet Junior Strength Chewable Tablets 160mg each Tablet
6-11 lbs 0-3 mos 1.25 mL
12-17 lbs 4-11 mos 2.5 mL ½ tsp.
18-23 lbs 12-23 mos 3.75 mL ¾ tsp.
24-35 lbs 2-3 yrs 5 mL 5 mL (1 tsp) 2
36-47 lbs 4-5 yrs 7.5 mL (1½ tsp) 3
48-59 lbs 6-8 yrs 10 mL (2 tsp) 4 2
60-71 lbs 9-10 yrs 12.5 mL (2 ½ tsp) 5 2 ½
72-95 lbs 11 yrs 15 mL (3 tsp) 6 3
96 lbs & over 12 yrs 4

Please note: One dose lasts 4 hours. Do not give >5 doses in 24 hours.


* For single concentration. Be aware that there may be both the old and new concentrations of infants’ acetaminophen products available in stores and in medicine cabinets. The pediatric acetaminophen products currently on the market can continue to be used as labeled. Be sure to check the label or contact our office should you have questions.

Ibuprofen (Advil/Motrin) Dosage
Weight Age Infant's Ibuprofen Concentrated Drops 50 mg (in each 1.25mL) Dropperful (Use dropper) Children's Ibuprofen Suspension 100 mg (in each 5 mL) Teaspoon Children's Soft Chewable Tablets 50 mg each Tablet Junior Strength Chewable Tablets 100 mg each Tablet Junior Strength Ibupofen Caplets 100 mg each Caplet
12-17 lbs 6-11 mos 1.25 mL
18-23 lbs 12-23 mos 1.875 mL
24-35 lbs 2-3 yrs 2.5 mL 5 mL (1 tsp) 2
36-47 lbs 4-5 yrs 7.5 mL (1½ tsp) 3
48-59 lbs 6-8 yrs 10 mL (2 tsp) 4 2 2
60-71 lbs 9-10 yrs 12.5 mL (2 ½ tsp) 5 2 ½ 2 ½
72-95 lbs 11 yrs 15 mL (3 tsp) 6 3 3

Please Note: One dose lasts 6-8 hours. Not to be used under 6 months.


  • Milliliter is abbreviated as mL; 5mL equals one teaspoon (tsp).
  • Don't use household teaspoons, which can vary in size.
  • Aspirin should not be used in children to treat fever or pain.

Diphenhydramine (Benadryl) Dosage

Indications: Treatment of allergic reactions, nasal allergies, hives and itching.

Weight Benadryl Liquid 12.5 mg = 5 mL 5 mL = 1 teaspoon Benadryl Chewable 12.5 mg Benadryl Tablets 25 mg Benadryl Capsules 25 mg
20-24 pounds 3/4 teaspoon
25-37 pounds 1 teaspoon 1 chewable
38-49 pounds 1 1/2 teaspoons 1 1/2 chewable
50-99 pounds 2 teaspoons 2 chewable 1 tablet 1 capsule
100 pounds and up 4 chewable 2 tablets 2 capsules
  • Give every 4-6 hours, as needed, and not more than four times in 24 hours unless directed by a healthcare professional.
  • Benadryl comes in a liquid form, chewable form, or as a tablet or capsule.
  • MEASURING the DOSAGE: Syringes and droppers are more accurate than teaspoons. If possible, use the syringe or dropper that comes with the medication. If you use a teaspoon, it should be a measuring spoon. Regular spoons are not reliable. Also, remember that 1 level teaspoon equals 5 ml and that ½ teaspoon equals 2.5 ml.
  • ADULT DOSAGE: 50 mg
  • CHILDREN’S BENADRYL FASTMELTS: Each fastmelt tablet contains the equivalent of 12.5 mg of Diphenhydramine HCL and dosed the same as chewable tablets
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