Amoxicillin Dosage Calculator for Pediatrics
Amoxicillin Dosage Calculator
How to Use Our Amoxicillin Dosage Calculator
Enter Age: Select the appropriate age of the child/patient using the dropdown menus provided. Choose the years and months separately for precise age determination.
Provide Weight: Input the weight of the patient in either kilograms or pounds. Type the weight into the designated input field.
Select Weight Unit: Choose the appropriate weight unit from the dropdown menu. Options include kilograms (kg) and pounds (lbs).
Calculate Dosage: Click on the “Calculate General Dosage” button after entering the required information. This triggers the calculator to process the data and determine the recommended dosage.
Review Output: Check the dosage recommendation displayed on the screen. The output is highlighted in bold blue text for easy identification.
Follow Dosage Instructions: Adhere to the dosage instructions provided by the calculator. Ensure that the prescribed dosage regimen is administered correctly based on the patient’s age, weight, and other relevant factors.
- Consult Healthcare Professional (Important): If there are any concerns or uncertainties regarding the dosage recommendation, consult a healthcare professional for further guidance and clarification.
How to Calculate Amoxicillin Dosage for Pediatrics (3 month old or less)?
Question: What is the recommended daily dosage of Amoxicillin for a 3-month-old child weighing 5 kilograms (11 lbs), following the standard dosage guideline of 30mg/kg/day?
Answer: Given:
- Age of the child: 3 months
- Weight of the child: 5 kilograms
- Standard dosage: 30mg/kg/day
First, let’s calculate the total dosage for a day:
Calculate the Total Dosage: Total Dosage = Weight of the child (in kg) × Dosage per kg (in mg/kg/day)
Total Dosage = 5 kg × 30 mg/kg/day
Total Dosage = 150 mg/day
So, the total recommended daily dosage of Amoxicillin for the 3-month-old child weighing 5 kilograms is 150 milligrams.
Now, let’s break down the dosage frequency based on the standard guideline of dividing the total daily dosage into multiple doses.
Determine Dosage Frequency:
- Since the total dosage needs to be divided evenly over the day, let’s consider dividing it into two doses.
- The standard dosage frequency for infants is typically every 12 hours.
Therefore, the recommended dosage regimen would be to administer 75 milligrams of Amoxicillin every 12 hours.
In summary:
- Total recommended daily dosage: 150 milligrams
- Dosage frequency: 75 milligrams every 12 hours
How to Calculate Amoxicillin Dosage for a child more than 3 months old but weight not exceeding 40 Kg or 88lbs?
Question: What is the recommended daily dosage of Amoxicillin for a 10-year-old patient weighing 39 kilograms, using the guideline of 20 mg/kg/day by mouth every 8 hours or 25 mg/kg/day every 12 hours? Max dose not to exceed 750 mg/day.
Answer:
Determine the Maximum Daily Dosage Limit: As per the guideline, the maximum daily dosage limit is 750 mg.
Calculate the Maximum Daily Dosage Based on Weight: We’ll first calculate the maximum dosage based on the weight of the patient. According to the guideline, the maximum dosage is 20 mg/kg/day or 25 mg/kg/day.
For 20 mg/kg/day: Maximum Dosage = Weight (kg) × 20 mg/kg/day = 39 kg × 20 mg/kg/day = 780 mg/day
For 25 mg/kg/day: Maximum Dosage = Weight (kg) × 25 mg/kg/day = 39 kg × 25 mg/kg/day = 975 mg/day
Select the Appropriate Dosage: Since the maximum dosage based on weight exceeds the maximum daily dosage limit of 750 mg/day, we’ll choose the lower dosage option to ensure it does not exceed the limit.
- The appropriate dosage would be 20 mg/kg/day.
Calculate the Dosage Frequency: The dosage should be administered every 8 hours. To calculate the dosage for each administration, we divide the daily dosage by the number of administrations.
- Dosage per Administration = Daily Dosage / Number of Administrations per Day = 780 mg / 3 administrations ≈ 260 mg per administration
Final Recommendation: Based on the calculation, the recommended dosage of Amoxicillin for the 10-year-old patient weighing 39 kilograms would be approximately 260 mg by mouth every 8 hours.
In summary, the recommended dosage of Amoxicillin is calculated based on the patient’s weight, ensuring it does not exceed the maximum daily dosage limit. The dosage is then divided to determine the appropriate dosage frequency, as per the guideline provided.
- Total recommended daily dosage: 250 milligrams divided every 8 hours or 375 milligrams divided every 12 hours
How to Calculate Amoxicillin Dosage for a 15 year old patient weighing 80kg?
Question: What is the recommended daily dosage of Amoxicillin for a 15-year-old patient weighing 80 kilograms, using the guideline of 250 mg every 8 hours, or 500 mg every 12 hours Max dose not to exceed 2gram/day or 2,000mg/day.
Answer:
- To calculate the appropriate dosage of Amoxicillin for a 15-year-old patient weighing 80 kilograms, we will use the guideline of 250 mg every 8 hours, or 500 mg every 12 hours. Additionally, we need to ensure that the maximum dose does not exceed 2,000 mg per day.First, let’s calculate the total daily dosage allowed:
- 250 mg every 8 hours = 3 doses per day, totaling 750 mg/day
- 500 mg every 12 hours = 2 doses per day, totaling 1000 mg/day
The maximum daily dose allowed is 2000 mg/day.
Given that the patient’s weight is 80 kilograms, we need to calculate the mg/kg/day dosage to ensure it is within safe limits.
- Both calculated dosages fall within safe limits as they are below the maximum recommended dose of 20 mg/kg/day. However, we need to ensure that the total daily dosage does not exceed 2000 mg/day.
Since the total daily dosage for the 500 mg every 12 hours option is 1000 mg/day, and it is already less than 2000 mg/day, we can safely choose this option.
Therefore, the recommended dosage for the 15-year-old patient weighing 80 kilograms is 500 mg of Amoxicillin every 12 hours.
Amoxicillin Dosage Chart
Amoxicillin Available Dosages
Amoxicillin Suspensions
- Amoxicillin 125mg/5ml
- Amoxicillin 200mg/5ml
- Amoxicillin 250mg/5ml
- Amoxicillin 400mg/5ml
Amoxicillin Tablets
- Amoxicillin 500mg Tab
- Amoxicillin 875mg Tab
Amoxicillin Capsules
- Amoxicillin 250mg Cap
- Amoxicillin 500mg Cap
Amoxicillin Chewable Tab
- Amoxicillin 125mg Tab
- Amoxicillin 250mg Tab
Amoxicillin Dosage for Different Health Conditions
Ear, Nose, and Throat Infections
- Adults: 250 mg every 8 hours or 500 mg every 12 hours for mild to moderate infections. For severe infections, 500 mg every 8 hours or 875 mg every 12 hours.
- Children (Sinusitis): Dose varies with age and weight, with specific recommendations for infants 3 months or younger and those older than 4 months.
Urinary Tract Infections (UTI)
- Adults: For mild to moderate infection, 250 mg every 8 hours or 500 mg every 12 hours. For severe infections, 500 mg every 8 hours or 875 mg every 12 hours.
- Children: Up to 30 mg/kg/day in divided doses every 12 hours for 3 months or younger. Older children’s doses vary with severity and weight.
Skin Infections
- Adults: 250 mg every 8 hours or 500 mg every 12 hours for mild to moderate infections, and 500 mg every 8 hours or 875 mg every 12 hours for severe infections.
- Children: Similar dosing strategy as adults, adjusted for weight and age.
Strep Throat
- Adults: For tonsillitis/pharyngitis, 775 mg once a day for 10 days if using extended-release, or 1000 mg once a day or 500 mg twice a day for immediate-release.
- Children’s doses vary, so it’s crucial to consult a healthcare provider.
Acute Otitis Media
- Adults: 250 to 500 mg three times a day for 10 to 14 days, or 500 to 875 mg twice a day.
Pediatric Dose for Bacterial Endocarditis Prophylaxis
- 50 mg/kg orally as a single dose 30 to 60 minutes before the procedure, with a maximum of 2 g/dose.
Anthrax Prophylaxis
- Adults: 1 g every 8 hours for 60 days as an alternative oral regimen for postexposure prophylaxis and cutaneous anthrax without systemic involvement.
Pneumonia
- Mild, moderate, or severe infection: 500 mg orally every 8 hours or 875 mg every 12 hours
Tonsillitis/Pharyngitis
- Extended-release: 775 mg orally once a day within 1 hour after a meal for 10 days