Recommended Dosage for Children's Liquid Advil (Ibuprofen Suspension)
Children's Liquid Advil (100 mg/5 mL concentration) dosing depends on the child's age and weight, not just age alone. Always use the provided dosing cup or syringe for accuracy, and consult a doctor or pharmacist first, especially for children under 6 months, those with medical conditions, or weighing under 24 lbs (11 kg). Maximum daily dose is 4 doses in 24 hours.
| Age Group | Weight Range | Dose per Administration (tsp or mL) | Frequency |
|-----------|--------------|-------------------------------------|-----------|
| 6-11 months | 12-17 lbs (5.5-8 kg) | 1.25 mL or ¼ tsp | Every 6-8 hours |
| 12-23 months | 18-23 lbs (8-11 kg) | 1.875 mL or ⅜ tsp | Every 6-8 hours |
| 2-3 years | 24-35 lbs (11-16 kg) | 5 mL or 1 tsp | Every 6-8 hours |
| 4-5 years | 36-47 lbs (16-22 kg) | 7.5 mL or 1½ tsp | Every 6-8 hours |
| 6-8 years | 48-59 lbs (22-27 kg) | 10 mL or 2 tsp | Every 6-8 hours |
| 9-10 years | 60-71 lbs (27-32 kg) | 12.5 mL or 2½ tsp | Every 6-8 hours |
| 11 years | 72-95 lbs (33-43 kg) | 15 mL or 3 tsp | Every 6-8 hours |
Shake well before use. Do not exceed recommended dose or give longer than 3 days for fever or 10 days for pain without medical advice.[1][2]
Adult Liquid Advil Dosage
For adults and children over 12 years (over 95 lbs or 43 kg), standard dose is 10-15 mL (2-3 tsp or 400-600 mg ibuprofen) every 4-6 hours as needed. Maximum 4 doses (3,200 mg) per day. Use only if directed by a doctor for those under 18 unless specified.[1][3]
What If My Child Weighs Outside These Ranges?
Measure by weight for precision: 5-10 mg/kg per dose (max 40 mg/kg/day). For example, a 20-lb child gets about 4.5-9 mg/kg, equating to 1.875-3.75 mL. Doctors often adjust for fever, pain, or conditions like chickenpox. Overdose risks liver/kidney damage—call poison control (1-800-222-1222) if suspected.[2][4]
Why Weight Matters More Than Age
Kids grow at different rates; age-based dosing can lead to under- or overdosing. FDA guidelines prioritize weight to match ibuprofen's pharmacokinetics, which clears faster in lighter children.[2][5]
Common Mistakes and When to Avoid It
Don't alternate with acetaminophen without doctor approval to prevent overdose. Skip if dehydrated, dehydrated, on other NSAIDs, or with stomach ulcers/asthma. Stop and seek care for rash, swelling, or persistent symptoms.[1][3]
Storage and Expiration
Store at room temperature (68-77°F). Discard after 6 months from opening or per expiration date. Unopened lasts until expiry if sealed.[1]
[1]: Advil.com Official Dosing Chart
[2]: FDA Label for Children's Advil
[3]: Pfizer Adult Ibuprofen Suspension Label
[4]: AAP Ibuprofen Dosing Guidelines
[5]: CDC Pain/Fever Management (references weight-based pediatric dosing)