Acetaminophen is a pain reliever and fever reducer.
Dextromethorphan is a cough suppressant. It affects the cough reflex in the brain that triggers coughing.
Doxylamine is an antihistamine that reduces the effects of natural chemical histamine in the body. Histamine can produce symptoms of sneezing, itching, watery eyes, and runny nose.
Pseudoephedrine is a decongestant that shrinks blood vessels in the nasal passages. Dilated blood vessels can cause nasal congestion (stuffy nose).
Acetaminophen, dextromethorphan, doxylamine, and pseudoephedrine is a combination medicine used to treat headache, fever, body aches, cough, runny nose, sneezing, and sinus congestion caused by the common cold, or the flu.
This medicine will not treat a cough that is caused by smoking, asthma, or emphysema.
NyQuil D, Nyquil Hot Therapy, All-Nite Cold, Nyquil Cold Medicine, Nyquil Liquicap, Robitussin Night Cold, Tylenol Flu Night Time, Alka-Seltzer Plus Night Time Cold Liquigel, Tylenol Severe Cold & Flu Night Time, Night Time, Theraflu Nighttime Severe Cold (pseudoephedrine), All-Nite Multi-Symptom Cold/Flu Relief, Multi-Symptom Nighttime, NyCair
Constipation; diarrhea; dizziness; drowsiness; excitability; headache; loss of appetite; nausea; nervousness or anxiety; trouble sleeping; upset stomach; vomiting; weakness.
Seek medical attention right away if any of these SEVERE side effects occur while taking acetaminophen / dextromethorphan / doxylamine / pseudoephedrine:
Severe allergic reactions (rash; hives; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); difficulty urinating or inability to urinate; fast or irregular heartbeat; hallucinations; seizures; severe dizziness, lightheadedness, or headache; stomach pain; tremor; trouble sleeping; vision changes; yellowing of skin or eyes.
(oral capsule, oral liquid, oral powder for reconstitution)