To give or not to give: Parental experience and adherence to the Food and Drug Administration warning about over-the-counter cough and cold medicine usage

The Food and Drug Administration (FDA) warned against administering over-the-counter cough and cold medicines to children under 2. This study evaluated whether experienced parents show poorer adherence to the FDA warning, as safe experiences are predicted to reduce the impact of warnings, and how adherence can be improved. Participants included 218 American parents (mean age: 29.98 (SD = 6.16), 82.9% female) with children age ≤ 2 who were aware of the FDA warning. We compared adherence among experienced (N=142; with other children > age 2) and inexperienced parents (N=76; only children ≤2). We also evaluated potential moderating variables (amount of warning-related information received, prevalence of side effects, trust in the FDA, frequency of coughs and colds, trust in drug packaging) and quantified the impact of amount of information. Logistic regression assessed the ability of experience alone, and experience combined with amount of information, to predict adherence. 53.3% of inexperienced but 28.4% of experienced parents were adherent (p = 0.0003). The groups did not differ on potential moderating variables. Adherence was 39.5% among experienced parents receiving "a lot of information", but 15.4% for those receiving less (p = 0.002); amount of information did not affect adherence in inexperienced parents (p = 0.22) but uniquely predicted adherence compared to a model with experience alone (p = 0.0005). Experienced parents were also less likely to mistrust drug packaging (p = 0.03). Targeting FDA information to experienced parents, particularly via drug packaging, may improve their adherence.