Safely and accurately calculate medication dosages based on patient weight.
Dosage Calculation
Enter the name of the medication.
Enter patient's weight in kilograms (kg).
Kilograms (kg)
Pounds (lb)
Select the unit for the patient's weight.
Enter the prescribed dosage amount per kg (e.g., 15 mg/kg).
Milligrams (mg)
Micrograms (mcg)
Milliliters (mL)
Units
Select the unit for the medication dosage.
e.g., '250mg/5mL' for liquid suspensions or strength for tablets. Leave blank if not applicable.
Typically 1, but can be more for certain regimens.
Recommended Dose:
—
Total Weight (kg): —
Calculated mg/kg: —
Volume to Administer (mL): —
Formula: (Patient Weight in kg × Dosage per kg) × Number of Doses = Total Dose
If applicable, Volume (mL) = (Total Dose / Concentration Numerator) × Concentration Denominator
Dosage Calculation Data
Chart showing the relationship between patient weight and total medication dosage.
Metric
Value
Unit
Patient Weight
—
kg
Dosage per kg
—
—
Total Dose
—
—
Volume to Administer
—
mL
Medication Name
—
–
What is Medication Dosage Calculation by Weight?
Medication dosage calculation by weight is a fundamental principle in pharmacology and healthcare, ensuring that patients receive the correct and safe amount of a prescribed medication. This method is particularly crucial for pediatric patients, elderly individuals, and those with conditions that affect drug metabolism or distribution, where precise dosing is paramount to efficacy and safety. The core idea behind calculating medication dosage by weight is to standardize the drug administration relative to the patient's physiological size, aiming for a consistent therapeutic effect across individuals of varying body mass. This approach helps prevent underdosing, which can lead to treatment failure, and overdosing, which can cause toxicity and adverse drug reactions.
Healthcare professionals, including doctors, nurses, pharmacists, and anesthesiologists, routinely use these calculations. Understanding this process is also vital for caregivers administering medication to children or dependents. Common misconceptions include assuming a standard dose applies to everyone regardless of size, or that weight alone dictates dosage without considering other factors like age, kidney/liver function, or the specific medication's therapeutic index. This calculator simplifies the complex task of finding the right medication dosage by weight, making it accessible to a wider audience while emphasizing the importance of professional medical guidance.
Medication Dosage Calculation by Weight Formula and Mathematical Explanation
The foundational formula for calculating medication dosage by weight is straightforward:
Total Dose = Patient Weight × Dosage Rate
This formula applies when the 'Dosage Rate' is expressed per unit of body weight, commonly in milligrams per kilogram (mg/kg) or micrograms per kilogram (mcg/kg). For liquid medications, an additional step is often required to determine the volume to administer based on the drug's concentration.
Step-by-Step Derivation and Explanation:
Determine Patient Weight in Kilograms: The first step is always to establish the patient's weight in kilograms. If the weight is provided in another unit (like pounds), it must be converted. 1 pound ≈ 0.453592 kilograms.
Identify the Prescribed Dosage Rate: This is the amount of medication specified per unit of the patient's weight. For example, a doctor might prescribe 10 mg of a drug for every kilogram of body weight (10 mg/kg). This rate is specific to the medication and the condition being treated.
Calculate the Total Dose: Multiply the patient's weight (in kg) by the dosage rate (e.g., mg/kg). This yields the total amount of medication the patient needs for a single administration or a specified period, depending on how the rate is defined.
*Example:* A 20 kg child needs a medication at a rate of 10 mg/kg.
Total Dose = 20 kg × 10 mg/kg = 200 mg.
Calculate Volume to Administer (for liquid formulations): If the medication is a liquid and has a known concentration (e.g., 250 mg of active drug in every 5 mL of suspension), you'll need to calculate the volume.
The formula for this is:
Volume to Administer (mL) = (Total Dose / Concentration Numerator) × Concentration Denominator
*Example:* If the Total Dose needed is 200 mg, and the concentration is 250 mg per 5 mL:
Volume (mL) = (200 mg / 250 mg) × 5 mL = 0.8 × 5 mL = 4 mL.
Variable Explanations:
Variable
Meaning
Unit
Typical Range
Patient Weight
The body mass of the individual requiring medication.
kg (or lb)
0.5 kg (premature infant) to 200+ kg (obese adult)
Dosage Rate
The prescribed amount of medication per unit of body weight.
mg/kg, mcg/kg, U/kg, etc.
Highly variable; 0.01 to 1000+ mg/kg depending on drug potency.
Total Dose
The total quantity of the medication to be administered.
mg, mcg, mL, Units, etc.
Varies greatly; e.g., 50 mcg for potent drugs to 5000 mg for less potent ones.
Concentration
The ratio of active drug to the total volume or mass of the formulation.
e.g., mg/mL, mg/tab, mg/5mL
e.g., 10 mg/mL, 50 mg/tab, 250 mg/5mL
Volume to Administer
The volume of the liquid medication formulation to be measured and given.
mL
0.1 mL to 50+ mL
Practical Examples (Real-World Use Cases)
Example 1: Pediatric Antibiotic Dosing
A 12 kg toddler is prescribed Amoxicillin for an ear infection. The standard pediatric dosage for Amoxicillin is 15 mg/kg/dose, administered every 8 hours. The available liquid suspension is labeled as 250 mg of Amoxicillin in every 5 mL (250mg/5mL).
Inputs:
Patient Weight: 12 kg
Dosage Rate: 15 mg/kg
Concentration: 250 mg / 5 mL
Number of Doses (per administration): 1
Calculations:
Total Dose = 12 kg × 15 mg/kg = 180 mg
Volume to Administer = (180 mg / 250 mg) × 5 mL = 0.72 × 5 mL = 3.6 mL
Result Interpretation: The toddler needs 180 mg of Amoxicillin. To achieve this, administer 3.6 mL of the liquid suspension. This dosage will be given every 8 hours as prescribed. This calculation ensures the child receives an appropriate therapeutic level of the antibiotic without risking toxicity.
Example 2: Adult Analgesic Dosing (Weight-Based)
An adult patient weighing 90 kg requires a specific analgesic for post-operative pain. The physician has ordered the medication at a rate of 2 mg/kg, to be administered intravenously. The medication is supplied as a solution with a concentration of 10 mg/mL.
Inputs:
Patient Weight: 90 kg
Dosage Rate: 2 mg/kg
Concentration: 10 mg / 1 mL
Number of Doses (per administration): 1
Calculations:
Total Dose = 90 kg × 2 mg/kg = 180 mg
Volume to Administer = (180 mg / 10 mg) × 1 mL = 18 × 1 mL = 18 mL
Result Interpretation: The patient requires a total of 180 mg of the analgesic. This translates to administering 18 mL of the solution. This weight-based approach ensures that even with differing body masses, patients receive a dose proportional to their physiological needs, contributing to effective pain management and minimizing risks associated with standard dosing.
How to Use This Medication Dosage Calculator by Weight
Our Medication Dosage Calculator by Weight is designed for simplicity and accuracy. Follow these steps to get your dosage calculation:
Input Medication Name: Enter the name of the drug for reference.
Enter Patient Weight: Input the patient's weight. Select the correct unit (kilograms or pounds). If you enter pounds, the calculator will automatically convert it to kilograms for accuracy.
Specify Dosage Rate: Enter the prescribed dosage amount per unit of weight (e.g., 15) and select the corresponding unit (e.g., mg/kg). This is the most critical input provided by your healthcare provider.
Select Dosage Unit: Choose the unit for the dosage rate (mg, mcg, mL, etc.).
Enter Medication Concentration: If it's a liquid medication, input its concentration. This is typically expressed as 'amount of drug / volume', such as '250mg/5mL'. For tablets or injectables where concentration isn't needed for volume calculation, this can be left blank or entered in a format like 'Strength/Unit' (e.g., '500mg/tab').
Specify Number of Doses: Indicate how many units of the calculated dose are administered at one time (usually '1').
Click 'Calculate Dosage': The calculator will process your inputs.
Reading the Results:
Recommended Dose: This is the primary output, showing the total amount of medication to administer based on weight and the prescribed rate.
Total Weight (kg): Your input weight, converted to kilograms.
Calculated mg/kg (or equivalent): The dosage rate you entered, confirming the basis for calculation.
Volume to Administer (mL): If a concentration was provided, this shows the specific volume of the liquid preparation to measure and give. If not, this might show the total dose directly if the units were already volume-based (like mL).
Decision-Making Guidance:
This calculator is a tool to assist healthcare professionals and informed caregivers. Always double-check the calculated dose against the original prescription. If any result seems unusually high or low, or if you have any doubts, consult with a qualified healthcare provider immediately. Never adjust medication dosages without medical supervision. For critical care scenarios, always rely on established protocols and experienced medical personnel.
Key Factors That Affect Medication Dosage by Weight Results
While weight is a primary determinant in dosage calculations, several other critical factors influence the final prescribed dose and its effectiveness. Understanding these nuances is vital for safe and optimal medication management.
Age: Particularly in pediatrics and geriatrics, age significantly impacts how the body processes medications. Infants have immature metabolic systems, while older adults may have reduced kidney or liver function, affecting drug clearance. Dosage adjustments based on age, even for individuals of similar weight, are common.
Organ Function (Kidney and Liver): These organs are primarily responsible for metabolizing and excreting drugs. Impaired kidney function (renal insufficiency) can lead to drug accumulation, increasing the risk of toxicity. Similarly, liver disease can hinder the metabolism of many drugs. Dosage adjustments are almost always necessary in patients with compromised organ function, often exceeding weight-based considerations.
Disease Severity and Specific Condition: The seriousness of the illness being treated dictates the required drug concentration at the site of action. For life-threatening infections, higher loading doses might be necessary, while for chronic conditions, lower maintenance doses might suffice. The specific indication for the medication plays a crucial role in determining the appropriate dosage range.
Drug Potency and Therapeutic Index: Medications vary widely in their potency. Highly potent drugs (e.g., some chemotherapy agents, opioids) are prescribed in very small quantities (micrograms or low milligrams), even for adults, and have a narrow therapeutic index (the range between an effective dose and a toxic dose). Less potent drugs might be dosed in grams. The therapeutic index guides the safety margin for dosing.
Route of Administration: How a medication is given impacts its bioavailability and the speed of onset. Intravenous (IV) administration delivers the full dose directly into the bloodstream, often requiring lower doses than oral administration, where absorption can be variable. Topical or inhaled medications also have specific dosing considerations based on local versus systemic effects.
Patient Metabolism and Genetics: Individual variations in metabolic enzymes (like Cytochrome P450 enzymes) due to genetic factors can significantly alter drug processing. Some individuals are "poor metabolizers," while others are "ultra-rapid metabolizers," requiring dosage adjustments to achieve therapeutic levels safely.
Concurrent Medications: Interactions between different drugs can affect absorption, distribution, metabolism, or excretion, potentially altering the efficacy or toxicity of one or more medications. A thorough review of all concurrent medications is essential before finalizing a dose.
Hydration and Nutritional Status: Dehydration can concentrate drugs in the body, potentially leading to toxicity. Conversely, certain nutritional deficiencies might affect drug metabolism or protein binding. Proper hydration and adequate nutrition support normal physiological processes vital for drug disposition.
Frequently Asked Questions (FAQ)
What is the standard weight-based dosage formula?
The most common formula is: Total Dose = Patient Weight (in kg) × Dosage Rate (e.g., mg/kg). For liquid medications, you then calculate the volume to administer using the drug's concentration. Always confirm the specific formula and units with your healthcare provider.
Can I use pounds (lb) directly in the formula?
No, the standard formulas typically require weight in kilograms (kg). You must convert pounds to kilograms before using the dosage formula. The conversion factor is approximately 1 kg = 2.20462 lbs, or 1 lb ≈ 0.453592 kg. Our calculator handles this conversion automatically if you select 'Pounds' as the unit.
What does 'mg/kg/day' mean?
'mg/kg/day' signifies the total daily dose of a medication, expressed in milligrams (mg) per kilogram (kg) of body weight. For example, a dose of 20 mg/kg/day for a 50 kg patient means the total daily dosage is 1000 mg (50 kg × 20 mg/kg). This total daily dose is often divided into smaller, more frequent administrations throughout the day (e.g., every 8 hours or every 12 hours).
Is weight-based dosing used for all medications?
No, weight-based dosing is most common for medications where precise blood concentration is critical for efficacy and safety, especially in pediatrics, anesthesiology, and critical care. Many adult medications use fixed dosing based on the condition, age, or general patient population, as their therapeutic range is wider and less sensitive to minor weight variations.
What if the calculated volume is very small (e.g., less than 1 mL)?
Administering volumes less than 1 mL requires very precise measurement, often using specialized syringes (e.g., tuberculin syringes). It's crucial to use the most accurate measuring device available and to follow the prescription exactly. If the volume is extremely small (e.g., 0.1 mL), it might indicate a highly potent drug or a need for re-evaluation of the prescription or formulation. Always use appropriate measuring tools for small volumes.
How do I handle liquid medications with different concentrations?
If you have multiple concentrations of the same medication available, you must use the correct concentration value in the calculation. A higher concentration means a smaller volume is needed to achieve the same dose, while a lower concentration requires a larger volume. Always verify the concentration stated on the medication label.
Can this calculator be used for adults?
Yes, while weight-based dosing is often emphasized in pediatrics, it is also frequently used for adults, particularly for certain medications (like chemotherapy, anesthetics, or potent analgesics) or in specific situations like managing obesity or extreme underweight. Always follow your doctor's specific prescription.
What are the risks of incorrect dosage calculation?
Incorrect dosage calculation can lead to serious consequences. Underdosing may result in treatment failure, allowing the condition to worsen or leading to the development of drug resistance (e.g., in infections or cancer). Overdosing can cause toxicity, severe side effects, organ damage, or even be fatal. Accuracy is paramount in medication administration.
Related Tools and Internal Resources
BMI Calculator – Understand how your body mass index relates to health, which can indirectly influence medication considerations.
Medical Cost Estimator – Get an idea of potential healthcare expenses related to treatments.
Drug Interaction Checker – Before starting new medications, check for potential interactions with existing drugs.
Child Growth Charts – Track a child's growth percentiles, relevant for pediatric dosing considerations.
Renal Function Calculator – Assess kidney function (e.g., eGFR), a key factor in adjusting drug dosages.
Liver Function Tests Guide – Learn about common liver function tests and their implications for drug metabolism.
var weightUnitSelect = document.getElementById('weightUnit');
var dosageUnitSelect = document.getElementById('dosageUnit');
var patientWeightInput = document.getElementById('patientWeight');
var dosagePerWeightInput = document.getElementById('dosagePerWeight');
var concentrationInput = document.getElementById('concentration');
var numberOfDosesInput = document.getElementById('numberOfDoses');
var medicationNameInput = document.getElementById('medicationName');
var displayWeightKgSpan = document.getElementById('displayWeightKg');
var displayDosageMgKgSpan = document.getElementById('displayDosageMgKg');
var displayVolumeMlSpan = document.getElementById('displayVolumeMl');
var totalDosageDiv = document.getElementById('totalDosage');
var resultDiv = document.getElementById('result');
var tableWeightKgTd = document.getElementById('tableWeightKg');
var tableDosagePerKgTd = document.getElementById('tableDosagePerKg');
var tableDosageUnitTd = document.getElementById('tableDosageUnit');
var tableTotalDosageTd = document.getElementById('tableTotalDosage');
var tableTotalDosageUnitTd = document.getElementById('tableTotalDosageUnit');
var tableVolumeMlTd = document.getElementById('tableVolumeMl');
var tableNameTd = document.getElementById('tableName');
var patientWeightErrorDiv = document.getElementById('patientWeightError');
var dosagePerWeightErrorDiv = document.getElementById('dosagePerWeightError');
var concentrationErrorDiv = document.getElementById('concentrationError');
var numberOfDosesErrorDiv = document.getElementById('numberOfDosesError');
var chart;
var chartContext;
var dosageChartCanvas = document.getElementById('dosageChart');
function validateInput(inputId, errorId, minValue, maxValue, isRequired) {
var input = document.getElementById(inputId);
var errorDiv = document.getElementById(errorId);
var value = input.value.trim();
var numValue = parseFloat(value);
var isValid = true;
errorDiv.style.display = 'none';
input.style.borderColor = 'var(–border-color)';
if (isRequired && value === ") {
errorDiv.textContent = 'This field is required.';
errorDiv.style.display = 'block';
input.style.borderColor = 'var(–error-color)';
isValid = false;
} else if (value !== " && isNaN(numValue)) {
errorDiv.textContent = 'Please enter a valid number.';
errorDiv.style.display = 'block';
input.style.borderColor = 'var(–error-color)';
isValid = false;
} else if (numValue maxValue) {
errorDiv.textContent = 'Value exceeds the maximum allowed.';
errorDiv.style.display = 'block';
input.style.borderColor = 'var(–error-color)';
isValid = false;
}
return isValid;
}
function parseConcentration(concentrationString) {
var parts = concentrationString.match(/(\d+(\.\d+)?)\s*(\w+)\s*\/\s*(\d+(\.\d+)?)\s*(\w+)/);
if (parts && parts.length === 7) {
var numerator = parseFloat(parts[1]);
var numeratorUnit = parts[3].toLowerCase();
var denominator = parseFloat(parts[4]);
var denominatorUnit = parts[6].toLowerCase();
return { numerator: numerator, numeratorUnit: numeratorUnit, denominator: denominator, denominatorUnit: denominatorUnit };
}
return null;
}
function convertToKg(weight, unit) {
if (unit === 'lb') {
return weight * 0.45359237;
}
return weight;
}
function calculateDosage() {
var isValid = true;
isValid &= validateInput('patientWeight', 'patientWeightError', 0);
isValid &= validateInput('dosagePerWeight', 'dosagePerWeightError', 0);
isValid &= validateInput('numberOfDoses', 'numberOfDosesError', 0);
var concentration = concentrationInput.value.trim();
var parsedConcentration = null;
if (concentration !== ") {
parsedConcentration = parseConcentration(concentration);
if (!parsedConcentration) {
document.getElementById('concentrationError').textContent = 'Invalid concentration format. Use like "250mg/5mL".';
document.getElementById('concentrationError').style.display = 'block';
concentrationInput.style.borderColor = 'var(–error-color)';
isValid = false;
} else {
document.getElementById('concentrationError').style.display = 'none';
concentrationInput.style.borderColor = 'var(–border-color)';
}
}
if (!isValid) {
resultDiv.classList.add('error');
totalDosageDiv.textContent = 'Error';
displayWeightKgSpan.textContent = '–';
displayDosageMgKgSpan.textContent = '–';
displayVolumeMlSpan.textContent = '–';
return;
}
resultDiv.classList.remove('error');
var patientWeight = parseFloat(patientWeightInput.value);
var weightUnit = weightUnitSelect.value;
var dosagePerWeight = parseFloat(dosagePerWeightInput.value);
var dosageUnit = dosageUnitSelect.value;
var numberOfDoses = parseInt(numberOfDosesInput.value);
var medName = medicationNameInput.value.trim() || 'N/A';
var weightInKg = convertToKg(patientWeight, weightUnit);
var totalDose = weightInKg * dosagePerWeight;
var finalDosageUnit = dosageUnit;
var volumeToAdminister = '–';
if (parsedConcentration) {
if (parsedConcentration.denominatorUnit.toLowerCase() === 'ml' || parsedConcentration.denominatorUnit.toLowerCase() === 'l') {
if (dosageUnit.toLowerCase() === parsedConcentration.numeratorUnit.toLowerCase()) {
// Direct calculation if units match
var concentrationRatio = parsedConcentration.numerator / parsedConcentration.denominator;
volumeToAdminister = (totalDose / concentrationRatio);
// Adjust volume unit if necessary (e.g., if dose is in grams and concentration is mg/mL)
if (totalDose > 1000 && dosageUnit.toLowerCase() === 'mg') { // Heuristic for potential conversion
volumeToAdminister = volumeToAdminister / 1000; // Assume dose was in g, convert mL to L
// This part can get complex, simplify for general case
}
if (parsedConcentration.denominatorUnit.toLowerCase() === 'l') {
volumeToAdminister = volumeToAdminister * 1000; // Convert L to mL if desired output is mL
}
} else {
// Attempt unit conversion if possible, otherwise show error or a note
console.warn("Unit mismatch for concentration calculation. Dosage unit:", dosageUnit, "Numerator unit:", parsedConcentration.numeratorUnit);
volumeToAdminister = "Unit Mismatch"; // Indicate issue
}
} else {
volumeToAdminister = "Concentration Volume Unit Not mL/L";
}
} else {
// If no concentration is given, the "dose" might already be in volume units if dosageUnit is mL
if (dosageUnit.toLowerCase() === 'ml') {
volumeToAdminister = totalDose;
} else {
volumeToAdminister = "N/A (No Concentration Provided)";
}
}
var displayTotalDose = totalDose.toFixed(2);
var displayWeightKg = weightInKg.toFixed(2);
var displayDosageMgKg = dosagePerWeight.toFixed(2);
var displayVolumeMl = (typeof volumeToAdminister === 'number') ? volumeToAdminister.toFixed(2) : volumeToAdminister;
totalDosageDiv.textContent = displayTotalDose + ' ' + finalDosageUnit;
displayWeightKgSpan.textContent = displayWeightKg + ' kg';
displayDosageMgKgSpan.textContent = displayDosageMgKg + ' ' + dosageUnit + '/kg';
displayVolumeMlSpan.textContent = displayVolumeMl;
// Update Table
tableWeightKgTd.textContent = displayWeightKg;
tableDosagePerKgTd.textContent = dosagePerWeight.toFixed(2);
tableDosageUnitTd.textContent = dosageUnit;
tableTotalDosageTd.textContent = displayTotalDose;
tableTotalDosageUnitTd.textContent = finalDosageUnit;
tableVolumeMlTd.textContent = displayVolumeMl;
tableNameTd.textContent = medName;
updateChart(weightInKg, totalDose, dosagePerWeight);
}
function resetCalculator() {
document.getElementById('medicationName').value = 'Amoxicillin';
document.getElementById('patientWeight').value = '70';
document.getElementById('weightUnit').value = 'kg';
document.getElementById('dosagePerWeight').value = '15';
document.getElementById('dosageUnit').value = 'mg';
document.getElementById('concentration').value = '250mg/5mL';
document.getElementById('numberOfDoses').value = '1';
// Clear errors
patientWeightErrorDiv.style.display = 'none';
dosagePerWeightErrorDiv.style.display = 'none';
concentrationErrorDiv.style.display = 'none';
numberOfDosesErrorDiv.style.display = 'none';
patientWeightInput.style.borderColor = 'var(–border-color)';
dosagePerWeightInput.style.borderColor = 'var(–border-color)';
concentrationInput.style.borderColor = 'var(–border-color)';
numberOfDosesInput.style.borderColor = 'var(–border-color)';
calculateDosage(); // Recalculate with default values
}
function updateChart(baseWeight, dose, rate) {
if (!chartContext) {
chartContext = dosageChartCanvas.getContext('2d');
chart = new Chart(chartContext, {
type: 'line',
data: {
labels: [],
datasets: [{
label: 'Total Dose (mg)',
data: [],
borderColor: 'var(–primary-color)',
backgroundColor: 'rgba(0, 74, 153, 0.1)',
fill: true,
tension: 0.1
}, {
label: 'Dosage Rate (mg/kg)',
data: [],
borderColor: 'var(–success-color)',
backgroundColor: 'rgba(40, 167, 69, 0.1)',
fill: true,
tension: 0.1
}]
},
options: {
responsive: true,
maintainAspectRatio: false,
scales: {
x: {
title: {
display: true,
text: 'Patient Weight (kg)'
}
},
y: {
title: {
display: true,
text: 'Dosage Amount / Rate'
}
}
},
plugins: {
legend: {
display: true,
position: 'top',
},
title: {
display: true,
text: 'Dosage Relationship with Weight'
}
}
}
});
}
var weights = [];
var doses = [];
var rates = [];
var currentWeight = baseWeight;
var weightIncrement = Math.max(1, Math.round(baseWeight / 5)); // Increment to show ~5 points
for (var i = 0; i < 6; i++) { // Generate 6 data points
var w = currentWeight + (i * weightIncrement);
var calculatedDose = w * rate;
weights.push(w.toFixed(1));
doses.push(calculatedDose.toFixed(1));
rates.push(rate.toFixed(1)); // Rate stays constant for this purpose
}
chart.data.labels = weights;
chart.data.datasets[0].data = doses;
chart.data.datasets[1].data = rates; // Showing rate as a flat line relative to weight change
chart.update();
}
function toggleFaq(element) {
var parent = element.parentElement;
parent.classList.toggle('active');
}
// Initial calculation on page load
document.addEventListener('DOMContentLoaded', function() {
calculateDosage();
// Initialize chart context
chartContext = dosageChartCanvas.getContext('2d');
chart = new Chart(chartContext, {
type: 'line',
data: {
labels: [],
datasets: [{
label: 'Total Dose (mg)',
data: [],
borderColor: 'var(–primary-color)',
backgroundColor: 'rgba(0, 74, 153, 0.1)',
fill: true,
tension: 0.1
}, {
label: 'Dosage Rate (mg/kg)',
data: [],
borderColor: 'var(–success-color)',
backgroundColor: 'rgba(40, 167, 69, 0.1)',
fill: true,
tension: 0.1
}]
},
options: {
responsive: true,
maintainAspectRatio: false,
scales: {
x: {
title: {
display: true,
text: 'Patient Weight (kg)'
}
},
y: {
title: {
display: true,
text: 'Dosage Amount / Rate'
}
}
},
plugins: {
legend: {
display: true,
position: 'top',
},
title: {
display: true,
text: 'Dosage Relationship with Weight'
}
}
}
});
});