Drug Interaction Report
6 potential interactions and/or warnings found for the following 2 drugs:
- oxybutynin
- Vicks DayQuil Severe Cold & Flu (acetaminophen / dextromethorphan / guaifenesin / phenylephrine)
Interactions between your drugs
oxyBUTYnin phenylephrine
Applies to: oxybutynin, Vicks DayQuil Severe Cold & Flu (acetaminophen / dextromethorphan / guaifenesin / phenylephrine)
OxyBUTYnin may increase the effects of phenylephrine on your blood pressure and heart rate. Before receiving these medications, you should let your doctor know if you have high blood pressure or heart disease. You may not be able to use one or both of these medications, or you may need closer monitoring by your doctor in order to use these medications. It is important to tell your doctor about all other medications you use, including vitamins and herbs. Do not stop using any medications without first talking to your doctor.
acetaminophen oxyBUTYnin
Applies to: Vicks DayQuil Severe Cold & Flu (acetaminophen / dextromethorphan / guaifenesin / phenylephrine), oxybutynin
Information for this minor interaction is available on the professional version.
Drug and food interactions
acetaminophen food
Applies to: Vicks DayQuil Severe Cold & Flu (acetaminophen / dextromethorphan / guaifenesin / phenylephrine)
Ask your doctor before using acetaminophen together with ethanol. This can cause serious side effects that affect your liver. Call your doctor immediately if you experience a fever, chills, joint pain or swelling, excessive tiredness or weakness, unusual bleeding or bruising, skin rash or itching, loss of appetite, nausea, vomiting, or yellowing of the skin or the whites of your eyes. If your doctor does prescribe these medications together, you may need a dose adjustment or special tests to safely take both medications. It is important to tell your doctor about all other medications you use, including vitamins and herbs. Do not stop using any medications without first talking to your doctor.
dextromethorphan food
Applies to: Vicks DayQuil Severe Cold & Flu (acetaminophen / dextromethorphan / guaifenesin / phenylephrine)
Alcohol can increase the nervous system side effects of dextromethorphan such as dizziness, drowsiness, and difficulty concentrating. Some people may also experience impairment in thinking and judgment. You should avoid or limit the use of alcohol while being treated with dextromethorphan. Do not use more than the recommended dose of dextromethorphan, and avoid activities requiring mental alertness such as driving or operating hazardous machinery until you know how the medication affects you. Talk to your doctor or pharmacist if you have any questions or concerns.
oxyBUTYnin food
Applies to: oxybutynin
Ask your doctor before using oxyBUTYnin together with ethanol. Use alcohol cautiously. Alcohol may increase drowsiness and dizziness while you are taking oxyBUTYnin. You should be warned not to exceed recommended dosages and to avoid activities requiring mental alertness. If your doctor prescribes these medications together, you may need a dose adjustment to safely take this combination. It is important to tell your doctor about all other medications you use, including vitamins and herbs. Do not stop using any medications without first talking to your doctor.
phenylephrine food
Applies to: Vicks DayQuil Severe Cold & Flu (acetaminophen / dextromethorphan / guaifenesin / phenylephrine)
Both phenylephrine and caffeine can increase blood pressure and heart rate, and combining them may enhance these effects. Talk to your doctor before using these medications, especially if you have a history of high blood pressure or heart disease. You may need a dose adjustment or more frequent monitoring by your doctor to safely use both medications. Contact your doctor if your condition changes or you experience increased side effects. It is important to tell your doctor about all other medications you use, including vitamins and herbs. Do not stop using any medications without first talking to your doctor.
Therapeutic duplication warnings
No duplication warnings were found for your selected drugs.
Therapeutic duplication warnings are only returned when drugs within the same group exceed the recommended therapeutic duplication maximum.
Drug Interaction Classification
Highly clinically significant. Avoid combinations; the risk of the interaction outweighs the benefit. | |
Moderately clinically significant. Usually avoid combinations; use it only under special circumstances. | |
Minimally clinically significant. Minimize risk; assess risk and consider an alternative drug, take steps to circumvent the interaction risk and/or institute a monitoring plan. | |
No interaction information available. |
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Further information
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