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This calculator provides general guidance only. Claritin dosing is based on age, not weight. Always read product labels. Consult a healthcare provider for children under 2 or those with liver conditions.
Calculate the appropriate loratadine dose for your child based on age
Weight is for reference - Claritin is dosed by age
| Age | Dose (mg) | Syrup (5mg/5mL) | Chewables | Frequency |
|---|---|---|---|---|
| Under 2 years | Ask Doctor - Not Recommended OTC | |||
| 2-5 years | 5 mg | 5 mL (1 tsp) | 1 chewable | Once daily |
| 6+ years | 10 mg | 10 mL (2 tsp) | 2 chewables | Once daily |
Do not give more than the recommended dose. Exceeding the dose does not improve effectiveness.
Never give Claritin-D to young children!
Both are effective second-generation antihistamines. Claritin (loratadine) is less likely to cause drowsiness, making it better for school days. Zyrtec (cetirizine) may be slightly more potent and faster-acting but causes more drowsiness. Many pediatricians suggest trying both to see which works better for your child.
Yes, Claritin is designed for daily use and is safe for long-term daily use in children 2 years and older. It's a second-generation antihistamine that doesn't lose effectiveness over time (no 'tolerance' develops). Many children take it daily throughout allergy season.
Give the missed dose as soon as you remember. However, if it's close to the next scheduled dose, skip the missed one and continue with the regular schedule. Don't double up doses. Since Claritin works for 24 hours, missing one dose isn't usually a big problem.
Claritin can generally be given with pain relievers like Tylenol or Motrin. However, don't combine it with other antihistamines (like Benadryl or Zyrtec). Some medications can interact with Claritin—check with a pharmacist if your child takes other prescriptions.
Claritin is an antihistamine that helps with runny nose, sneezing, and itching, but it doesn't relieve nasal congestion (stuffiness). For stuffiness, you'd need a decongestant, saline rinse, or nasal steroid spray. Talk to your pediatrician about adding these for congestion.
Children's Claritin syrup contains artificial colors and flavors. If your child is sensitive to dyes, look for the 'dye-free' version of Children's Claritin, or ask about RediTabs which may have fewer additives. Always check ingredient labels.
Claritin typically takes 1-3 hours to start working, which is slower than some antihistamines. For seasonal allergies, it works best when taken daily before symptoms start—begin 1-2 weeks before allergy season for best results.