Conversion Chart

It is also important to know how to convert teaspoons to milliliters. The following is a brief guide:
  • Teaspoon = tsp
  • Tablespoon = Tbsp
  • Milliliters = ml
  • Cubic Centimeter = cc
  • 1/2 tsp = 2.5 ml = 2.5 cc
  • 1 tsp = 5 ml = 5 cc = 1/3 Tbsp
  • 1 1/2 tsp = 7.5 ml = 7.5 cc = 1/2 Tbsp
  • 2 tsp = 10 ml = 10 cc
  • 3 tsp = 15 ml = 15 cc = 1 Tbsp = 1/2 ounce
  • 6 tsp = 30 ml = 30 cc = 2 Tbsp = 1 ounce = 1 oz
Below are recommended doses for several over the counter medications.
  • All doses are determined by weight not age.
  • Please remember these are guidelines, follow the manufacturer's label on all products.
  • Always check the label for the type of medicine you are giving as well as to check the dosage.
  • Make sure you do not mix medicines containing the same components (Tylenol & Feverall® for example).
  • Temperature should be measured rectally in infants under 6 months of age. Underarm (axillary) or ear (otic) thermometers should be reserved for children over the age of 6 months. An oral thermometer is not appropriate until your child can hold it under his or her tongue for several minutes without biting (usually around age 5).
  • Please remember that you are treating your child, not a number on the thermometer. Your goal in treating a fever is to make your child comfortable, not to make the number lower.
  • Please do not give any medication to infants less than 2 months old.
  • Please call the office immediately if your infant is under 2 months and has a fever of greater than 100.4 F rectally.
  • Ibuprofen (Motrin, Advil) cannot be given to infants less than 6 months old.
  • Acetaminophen may be given every 4 hours as needed.
  • Ibuprofen may be given every 6-8 hours as needed.
  • Please do not give these over the counter medications if your child has a history of liver or kidney failure.
  • Dr. Lancaster does not recommend the use of over the counter cold or cough medicines in children under 6 years old.
  • POISON CONTROL: (800) 222-1222.
Acetaminophen (Tylenol®)

Dosing frequency is every 4-6 hours. When treating fever or pain, the chart below can be a guideline:
Weight: Milligram Dosage Infant drops
80mg/0.8ml
1 dropper =
0.8ml

1/2dropper =
0.4ml
Children's liquid
160mg/5ml
Children's soft chews 80mg each Junior strength Caps or chews 160mg each
6-12 lbs 40mg 1/4 dropper (0.4ml) 1/4 tsp
(1.25ml)
N/A N/A
13-17 lbs 80mg 1 dropper (0.8ml) 1/2 tsp
(2.5ml)
N/A N/A
18-23 lbs 120mg 11/2dropper (1.2ml) 3/4 tsp
(3.75ml)
N/A N/A
24-35 lbs 160mg 2 droppers (1.6ml) 1 tsp
(5ml)
2 tablets 1 tablet
36-47 lbs 240mg 3 droppers (2.4ml) 11/2tsp
(7.5ml)
3 tablets 11/2tablet
48-59 lbs 320mg 4 droppers (3.2ml) 2 tsp
(10ml)
4 tablets 2 tablets
60-69 lbs 400mg N/A 21/2tsp
(12.5ml)
5 tablets 21/2tablets
70-79 lbs 480mg N/A 3 tsp
(15ml)
6 tablets 3 tablets
80-95 lbs 560mg N/A 31/2tsp
(17.5ml)
7 tablets 31/2tablets
>95 lbs 640mg N/A 4 tsp
(20ml)
8 tablets 4 tablets
>95 lbs Or Give Adult Dosage Of Adult Tablets

Acetaminophen suppositories (Feverall®).

Dosing frequency is every 4-6 hours. When using suppositories, petroleum jelly can be used to assist in the insertion of the suppository. Insertion of the suppositories is similar to using a rectal thermometer. When treating fever or pain, the chart below can be a guideline:

Weight: Milligram Dosage Children's Suppository
80mg each
Children's Suppository
120mg each
Junior Strength Suppository 325mg each
12-17 lbs 80mg 1 suppository N/A N/A
18-25 lbs 120mg 11/2suppository 1 suppository
N/A
26-35 lbs 180mg N/A 11/2 suppositories N/A
36-47 lbs 240mg N/A 2 suppositories N/A
48-74 lbs 325mg N/A N/A 1 suppository
75-95 lbs 500mg N/A N/A 11/2suppositories
>95lbs 650mg N/A N/A 2 suppositories

Ibuprofen (Advil® /Motrin®) doses

Please wait until your infant is at least 6 months old before using ibuprofen. Doses can be given every 6 hours. When treating fever or pain, the chart below can be a guideline:
Weight: Milligram Dosage Advil/Motrin
Drops 50mg/ 1.25ml
Children's liquid
100mg/5ml
Chewable Tablets 50mg each Junior strength Caps or chews 100mg each
12-17 lbs 50mg 1.25ml 1/2 tsp(2.5ml) N/A N/A
18-23 lbs 75mg 1.87ml 3/4 tsp(3.75ml) N/A N/A
24-35 lbs 100mg 2.5ml 1 tsp(5ml) 2 tablets 1 tablet
36-47 lbs 175mg 3.75ml 11/2tsp
(8.75ml)
3 tablets 11/2tablets
48-59 lbs 200mg N/A 2 tsp
(10ml)
4 tablets 2 tablets
60-71 lbs 250mg N/A 21/2tsp
(12.5ml)
5 tablets 21/2tablets
72-95 lbs 300mg N/A 3 tsp
(15ml)
6 tablets 3 tablets
>95 lbs 400mg N/A 4 tsp
(20ml)
8 tablets 4 tablets
> 95 lbs Or Give Adult Dosage Of Adult Tablets

Benadryl® (diphenhydramine) is used for hives and to reduce the itchiness associated with rashes such as with eczema or poison ivy.

Benadryl® can be given every 6-8 hours as needed. Most children become sleepy after taking Benadryl®. However, occasionally, a few children have the opposite response and get “hyper” with Benadryl®. A test dose during the day is advised.
Weight Milligram Dosage Benadryl Elixir (12.5mg/tsp.)
Benadryl Chewable (12.5 mg)

Benadryl Tabs
(25 mg) (Adult Strength)

13-20 lbs 6.25mg 1/2 tsp. N/A N/A
21-27 lbs 9.37mg 3/4 tsp. N/A N/A
28-41 lbs 12.5mg 1 tsp. 1 tab N/A
42-54 lbs 18.75mg 11/2tsp. 11/2tabs N/A
55-82 lbs 25mg 2 tsp. 2 tabs 1 tab
83-110 lbs 37.5mg 3 tsp. 3 tabs 11/2tabs
>110 lbs 50mg 4 tsp. 4 tabs 2 tabs