Answer
Jan 07, 2025 - 11:45 AM
NyQuil nighttime contains an antihistamine called doxylamine succinate, which is primarily responsible for its sedative effects, making you feel sleepy. In addition to doxylamine, NyQuil also typically includes ingredients like acetaminophen for pain and fever relief, and dextromethorphan as a cough suppressant. The combination of these ingredients helps alleviate cold symptoms and promotes restful sleep.
