Why India has restricted chlorpheniramine, phenylephrine medicines for children under 4 | Explained

The Union Health Ministry recently tightened controls on fixed-dose combination (FDC) medicines containing chlorpheniramine maleate and phenylephrine hydrochloride for children under four years of age. Chlorpheniramine is an antihistamine that reduces allergy symptoms like runny nose and sneezing, while phenylephrine is a decongestant used to relieve a blocked nose.

These two ingredients are often combined in cold and allergy preparations. The government's action does not ban individual products containing either ingredient, but instead requires the warning to be added to labels, package inserts, and promotional materials. This rule expansion comes after India's Central Drugs Standard Control Organisation (CDSCO) directed manufacturers of a specific chlorpheniramine + phenylephrine formulation to include a warning for use below the age of four in 2023.

In April 2025, restrictions were imposed on certain FDCs, and now the warning requirement extends to all such formulations. Young children are more vulnerable to medication-related adverse effects due to their bodies processing medicines differently and dosing errors having larger consequences. The government's Expert Committee and Drugs Technical Advisory Board (DTAB) concluded that these combinations could pose risks to children under four and that safer alternatives exist.

International concerns also exist around giving young children multi-ingredient cough-and-cold medicines, with the US FDA warning about potential serious adverse effects and accidental overdose risks. While these drugs can relieve symptoms, they do not cure the underlying viral infection. For nasal congestion, simple measures like saline nasal drops, fluids, and a cool-mist humidifier can be helpful.

Parents should avoid self-medicating children under four with chlorpheniramine + phenylephrine combinations and instead use age-appropriate and medically advised medicines for fever or discomfort.