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Jul 14

# Dosage of pen v for 6 year old boy with Tonsillitis? How to calculate the dosage? ?

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Jul 14
The usual dosage of penicillin V for a 6-year-old boy with tonsillitis is 250 mg to 500 mg every 6 to 8 hours for 10 days.

To calculate the exact dosage for the boy, you will need to know his weight in kilograms. The typical dosage for penicillin V is 25 to 50 mg/kg per day, divided into 3 or 4 doses.

For example, if the boy weighs 20 kg, the dosage would be:
- Low end: 25 mg/kg x 20 kg = 500 mg per day
- High end: 50 mg/kg x 20 kg = 1000 mg per day

Divide the total daily dosage by the number of doses per day to get the amount to give at each dose.

Always consult with a healthcare provider before giving any medication to a child.
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Jul 14
Calculating the Dosage of Penicillin V for Tonsillitis in a 6-Year-Old Boy

Standard Dosage:

For tonsillitis caused by Streptococcus pyogenes (group A streptococcus), the recommended dosage of penicillin V for a child weighing 20-40 kg (44-88 lbs) is:

- 125-250 mg every 6-8 hours

Steps for Calculating the Individual Dosage:

1. Determine the child's weight in pounds: Let's say your son weighs 50 lbs.
2. Calculate the daily dosage range: 50 lbs x 2.5 mg/lb (higher end of the dosage range) = 125 mg
3. Divide by the frequency of administration: 125 mg / 4 (4 times a day) = 31.25 mg
4. Round up to the nearest standard dose: 31.25 mg rounded up to 32 mg
5. Double the dose for the first 24 hours: 32 mg x 2 = 64 mg

Therefore, the recommended dosage for your 6-year-old boy weighing 50 lbs with tonsillitis caused by Streptococcus pyogenes is:

- 64 mg (2 tablets of 32 mg) every 6 hours for the first 24 hours
- 32 mg (1 tablet of 32 mg) every 6 hours thereafter for 7-10 days

Important Notes:

- Complete the entire course of treatment as prescribed, even if symptoms improve.
- If the child experiences any adverse reactions, stop the medication and contact your doctor immediately.
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