VICKS DAYQUIL AND VICKS NYQUIL COLD AND FLU- acetaminophen, dextromethorphan hydrobromide, phenylephrine hydrochloride, and doxylamine succinate kit.

NyQuil provides temporary relief for coughing, headaches, stuffy and runny nose, sore throat, fever, and sneezing. It also helps people with cold symptoms sleep through the night. While it provides relief for cold symptoms, it is not a cure for the common cold or the flu.

How Soon Do You Feel Sleepy After Taking NyQuil? NyQuil usually triggers sleepiness approximately half an hour after a person takes the medication. Doctors may recommend waiting to take the medication until just before bedtime.

Taking NyQuil can make people drowsy and fall asleep, which is the major side effect of the drug. The duration and quality of sleep can vary depending on the person. Other, rarer, side effects are mainly due to the acetaminophen component and can include: Skin reddening.

NyQuil is not designed to be taken as a sleep aid, or for any purpose besides relieving cold or flu symptoms. Although doxylamine is an approved sleep aid when sold on its own, this sleep-inducing ingredient should generally not be used for more than two weeks.

How long does Nyquil's drowsiness last? Nyquil's active ingredient, doxylamine, which has antihistamine and sedating effects, can lead to sleepiness. Nyquil can cause different degrees of sleepiness, depending on the individual lasting anywhere from 4 to 6 hours on average.

Do not take for longer than 7 days in a row. Stop taking the medicine and call your doctor if you still have a fever after 3 days of use, you still have pain after 7 days (or 5 days if treating a child), if your symptoms get worse, or if you have a skin rash, ongoing headache, or any redness or swelling.

How long does Nyquil's drowsiness last? Nyquil's active ingredient, doxylamine, which has antihistamine and sedating effects, can lead to sleepiness. Nyquil can cause different degrees of sleepiness, depending on the individual lasting anywhere from 4 to 6 hours on average.

NyQuil can cause you to feel very drowsy or sleepy and you may fall asleep after taking it. Be careful when driving or operating machinery if you have taken this product. Avoid drinking alcoholic beverages with NyQuil. Alcohol, sedatives and tranquilizers can increase drowsiness when used with NyQuil.

Should You Take Nyquil for Sleep? NyQuil is not designed to be taken as a sleep aid, or for any purpose besides relieving cold or flu symptoms. Although doxylamine is an approved sleep aid when sold on its own, this sleep-inducing ingredient should generally not be used for more than two weeks.

Is it safe to take Nyquil Cold and Flu every day? Nyquil Cold and Flu isn't meant for long-term use. You should only use Nyquil Cold and Flu as needed for the shortest period of time possible to treat your cold or flu symptoms.

The typical adult dosage of NyQuil Cold & Flu is 2 capsules or 30 mL by mouth every 6 hours as needed. Don't take more than 4 doses (8 capsules or 120 mL) in 24 hours.