Nyquil Side Effects
What should I watch for?
Tell your doctor or healthcare professional if your symptoms do not start to get better or if they get worse. Let your doctor know if the pain or cough gets worse or lasts for more than 7 days. Call your doctor if a fever gets worse or lasts for more than 3 days. If a cough does not go away, if a cough comes back, or if it occurs with a rah or headache see your doctor. Also see your doctor if a sore throat lasts more than 2 days or if it occurs with a fever, rash, headache, nausea, or vomiting.
You may get drowsy or dizzy. Do not drive, use machinery, or do anything that needs mental alertness until you know how this medicine affects you. Do not stand or sit up quickly, especially if you are an older patient. This reduces the risk of dizzy or fainting spells. Alcohol may interfere with the effect of this medicine. Avoid alcoholic drinks.
Do not take other medicines that contain acetaminophen with this medicine. Always read labels carefully. If you have questions, ask your doctor or pharmacist.
If you take too much acetaminophen get medical help right away. Too much acetaminophen can be very dangerous and cause liver damage. Even if you do not have symptoms, it is important to get help right away.
Side Effects to watch for
Side effects that you should report to your doctor or health care professional as soon as possible:
- allergic reactions like skin rash, itching or hives, swelling of the face, lips, or tongue
- breathing problems
- changes in vision
- over excited, nervous, or restless
- problems with balance, talking, walking
- trouble passing urine or change in the amount of urine
- unusual bleeding or bruising
- unusually weak or tired
- yellowing of the eyes or skin
Side effects that usually do not require medical attention (report to your doctor or health care professional if they continue or are bothersome):
- drowsy, tired
- nausea, stomach upset
What may interact with this drug?
Do not take this medicine with any of the following medications:
This medicine may also interact with the following medications: