NOTHING LASTS LONGER POWERFUL COUGH RELIEF LEARN MORE *Among OTC Cough Liquids. Use as directed. COUGH RELIEF JUST FOR KIDS Children’s Delsym® provides fast-acting, long lasting cough relief so your child can get back to feeling themselves. LEARN MORE Previous Next OUR PRODUCTS Delsym® has a full line of cough medicine products for both adults and children. This includes 12 hour products which provide long lasting cough relief with every dose, and Cough+ products which relieve cough as well as other cold symptoms.