Giving Medications to Children: Dosing, Safety & Tips

Giving medications to children requires special attention because children are not simply small adults — their bodies absorb, distribute, metabolize, and eliminate drugs differently at each stage of development [1]. Medication errors in children are three times more common than in adults, largely because of weight-based dosing calculations and the challenge of administering precise doses to uncooperative patients [2]. How Pediatric Dosing Differs Most pediatric drug doses are calculated based on the child's body weight (mg/kg) or body surface area (mg/m2), not by age alone [1][2]. This is because children of the same age can vary dramatically in size. A 5-year-old weighing 40 pounds needs a very different dose than a 5-year-old weighing 60 pounds. Some OTC medications provide age-based dosing on the label, but these are approximations — when in doubt, use the weight-based dose or ask your pharmacist [2]. Never use adult formulations or doses for children unless specifically directed by a pediatrician. Giving Liquid Medications Most pediatric medications come in liquid form for children who cannot swallow pills [1]. Always use the dosing device provided with the medication (oral syringe, dosing cup, or dropper) — never use a kitchen teaspoon or tablespoon, as these are inaccurate and can lead to significant over- or underdosing [2][3]. A kitchen teaspoon can hold anywhere from 2 to 9 mL, while a standard medical teaspoon is exactly 5 mL [3]. For infants, use an oral syringe and dispense the medication slowly into the side of the cheek to reduce gagging and spitting. Shake liquid medications well before each dose, as the active ingredient can settle. Common Pediatric Medication Safety Mistakes The most common errors include using the wrong measuring device, confusing milligrams with milliliters, giving an adult formulation to a child, and re-dosing too soon because the child spit out some medication [1][2]. Never give a child aspirin (risk of Reye's syndrome in children with viral illness) unless specifically prescribed by a doctor. Do not give honey to children under one year old, even as a remedy for cough (risk of infant botulism). Avoid cough and cold medications in children under 4 years old — the FDA warns against these due to serious potential side effects with minimal proven benefit in young children [4]. Acetaminophen and Ibuprofen in Children Acetaminophen (Tylenol) and ibuprofen (Motrin, Advil) are the most commonly used medications in children for fever and pain [1]. Acetaminophen can be given from birth; ibuprofen is approved from 6 months of age. Both require careful weight-based dosing. Acetaminophen is dosed every 4-6 hours (maximum 5 doses in 24 hours); ibuprofen is dosed every 6-8 hours. Alternating acetaminophen and ibuprofen for fever is sometimes recommended by pediatricians but increases the risk of dosing errors — only do this if your pediatrician specifically advises it and provides a written schedule [2]. Antibiotics in Children When antibiotics are prescribed, complete the full course even if your child feels better after a few days [1]. Stopping early can lead to antibiotic resistance and relapse of infection. If your child vomits within 30 minutes of a dose, give the full dose again. If they vomit more than 30 minutes after, do not redose — the medication has likely been absorbed [2]. Store liquid antibiotics as directed — some require refrigeration, which also improves the taste. When to Call Your Pediatrician Call immediately if your child develops an allergic reaction (hives, swelling, difficulty breathing) to any medication [1]. Also call if your child accidentally takes more than the recommended dose, refuses to take a critical medication (antibiotics, seizure medications), develops new or worsening symptoms after starting a medication, or has persistent vomiting that prevents keeping medication down [2].