My 8 Month Old Has A Fever Of 100.7 I Have Been Giving Him Infants Tylenol

Posted on Thu, 31 Dec 2020

Medically reviewed by Ask A Doctor - 24x7 Medical Review Team

Thu, 31 Dec 2020 Answered on

Wed, 26 Mar 2025 Last reviewed on

Question : Hi. My 8 month old has a fever of 100.7 i have been giving him infants tylenol but would like to give him motrin but i do not have infants motrin only childrens motrin which is 100mg per 5ml he is 17 pounds or 7.7 kg which would make his dosage at 3.85 is ot ok for me to give that to him?

Answered by Dr. Muhammed Aslam TK (38 minutes later)

Brief Answer:
You can give 3.5 ml

Detailed Answer:
Hello dear,

A sudden onset fever without any other associated symptoms probably suggests a viral illness. If he is otherwise playful and feeding well, nothing to worry. All that is needed is an antipyretic for 48-72 hours. You can continue tylenol every 6-8 hours for 48-72 hours. Only if fever is not coming down in 1 hour of tylenol, you can give Motrin(Ibuprofen). As per his weight, you can give 3.5ml of Motrin suspension(100mg/5ml), maximum 3 times daily.

If fever is not coming down in 72 hours, he becomes dull, refuses to feed or fresh symptoms gets added up, kindly take him to doctor for further evaluation

I hope this answer will help
Regards, Dr Aslam

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Above answer was peer-reviewed by : Dr. Vaishalee Punj