This combination medication is used to temporarily treat cough, chest congestion, fever, body aches, and stuffy nose symptoms caused by the common cold, flu, or other breathing illnesses (such as sinusitis, bronchitis).

It blocks chemicals in your body to help relieve pain and lower fever. Dextromethorphan is a cough suppressant that works in the brain to lower your urge to cough. Phenylephrine is a decongestant that clears your sinuses to relieve stuffy nose and sinus pressure.

Vicks is an American brand of over-the-counter medications owned by the American companies Procter & Gamble and Helen of Troy Limited. Vicks manufactures NyQuil and its sister medication, DayQuil as well as other medications in the "Quil" line.

Active ingredients (in each LiquiCap) Purpose - Acetaminophen 325 mgPain reliever/fever reducer - Dextromethorphan HBr 10 mgCough suppressant - Phenylephrine HCl 5 mgNasal temporarily relieves common cold/flu symptoms: nasal congestion. cough due to minor throat & bronchial irritation.

You can take DayQuil every four hours, with no more than six doses in 24 hours. Will DayQuil make you tired? Even though it is marketed for daytime use, some people who take DayQuil report it makes them tired. Common side effects of DayQuil include nervousness, dizziness, or sleepiness.

Common side effects of DayQuil Severe Cold and Flu may include:

• dizziness, weakness;
• mild headache;
• mild nausea, diarrhea, upset stomach;
• dry mouth, nose, or throat;
• feeling nervous, restless, irritable, or anxious; or.
• sleep problems (insomnia).

Dizziness, drowsiness, headache, nausea, nervousness, or trouble sleeping may occur. If any of these effects last or get worse, contact your doctor or pharmacist promptly.

DayQuil is available in several formulations. DayQuil was introduced in 1974 under the name "DayCare" and is currently advertised for daytime use because of its non-drowsy active ingredients. The brand name was reintroduced as "DayQuil" in 1992.

Generally, DayQuil is a safe drug to use. However, it can cause harmful effects if you have certain medical conditions, use too much of it, or misuse it.

Common side effects of DayQuil Severe Cold and Flu may include:

• dizziness, weakness;
• mild headache;
• mild nausea, diarrhea, upset stomach;
• dry mouth, nose, or throat;
• feeling nervous, restless, irritable, or anxious; or.
• sleep problems (insomnia).

Common side effects of DayQuil Severe Cold and Flu may include:

• dizziness, weakness;
• mild headache;
• mild nausea, diarrhea, upset stomach;
• dry mouth, nose, or throat;
• feeling nervous, restless, irritable, or anxious; or.
• sleep problems (insomnia).

They reduce coughing, fever, pain, and congestion. The DayQuil product line includes several medications, such as capsules and liquid products. These can help treat mild to severe symptoms during the day or night. Most people who take DayQuil do not experience serious side effects.

Dizziness, drowsiness, headache, nausea, nervousness, or trouble sleeping may occur. If any of these effects last or get worse, contact your doctor or pharmacist promptly.