# Certain Medications Increase Heat Illness Risk During Summer Months
Ten common medications raise the danger of heat-related illness, requiring parents and caregivers to take extra precautions during hot weather. These drugs interfere with the body's natural cooling systems or affect how it handles fluids and electrolytes.
Antihistamines like diphenhydramine (Benadryl) and cetirizine (Zyrtec) reduce sweating, which blocks the primary way bodies cool themselves. Stimulant medications used for ADHD, including amphetamines and methylphenidate (Ritalin), increase heart rate and metabolic heat production. Anticholinergic drugs like atropine and scopolamine also suppress sweating.
Decongestants such as pseudoephedrine (Sudafed) constrict blood vessels, limiting heat dissipation. Diuretics prescribed for high blood pressure increase urination and dehydration risk. Antipsychotics like haloperidol impair temperature regulation. Tricyclic antidepressants, some seizure medications, and certain asthma drugs round out the list.
Parents giving children these medications during summer should watch for warning signs: dizziness, nausea, rapid heartbeat, confusion, and loss of consciousness. Heat exhaustion progresses quickly to heat stroke, a medical emergency.
Protective steps include increasing water intake without waiting for thirst, scheduling outdoor activities for early morning or evening, dressing in lightweight clothing, and avoiding prolonged sun exposure. Keep children in air-conditioned spaces when possible. Never stop medications without consulting your pediatrician.
Talk with your doctor about timing doses strategically around cooler parts of the day. Share medication lists with camps, schools, and childcare providers so staff understand individual heat risks. Parents