Doxylamine succinate: The ingredient present in all NyQuil formulations is that of doxylamine succinate. Its elimination half-life is approximately 10 hours in healthy adults, meaning that at 10 hours post-ingestion, 50% of the doxylamine within NyQuil will have been eliminated from systemic circulation.
phlegmon (Noun) A solid mass formed by inflamed connective tissue, such as forms around an appendix in appendicitis. Origin: phlegmone, phlegmon, inflammation beneath the skin, from .
Phlebitis means inflammation of the veins, and can cause redness, itching, irritation, pain, and swelling. Pilonidal cyst. A pilonidal cyst forms under the skin at the tailbone, and usually contains skin debris and hair. Chickenpox (varicella) Chickenpox is an illness that causes a red, itchy rash, fever, headache, sore throat, and body aches.