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Drug Interactions between CVS Extra Strength Headache Relief and MSP-Blu

This report displays the potential drug interactions for the following 2 drugs:

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Interactions between your drugs

Moderate

aspirin phenyl salicylate

Applies to: CVS Extra Strength Headache Relief (acetaminophen / aspirin / caffeine) and MSP-Blu (hyoscyamine / methenamine / methylene blue / phenyl salicylate)

Using aspirin together with phenyl salicylate is generally not recommended. Combining these medications may increase the risk of side effects in the gastrointestinal tract such as inflammation, pain, bleeding, and ulceration. Bruising and other bleeding complications may also occur. You should take these medications with food to lessen gastrointestinal side effects. Talk to your doctor if you have any questions or concerns. Your doctor may be able to prescribe alternatives that do not interact, or you may need a dose adjustment or more frequent monitoring to safely use both medications. You should seek immediate medical attention if you experience any unusual bleeding or bruising, or have other signs and symptoms of bleeding such as dizziness; lightheadedness; red or black, tarry stools; coughing up or vomiting fresh or dried blood that looks like coffee grounds; severe headache; and weakness. 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.

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Minor

aspirin caffeine

Applies to: CVS Extra Strength Headache Relief (acetaminophen / aspirin / caffeine) and CVS Extra Strength Headache Relief (acetaminophen / aspirin / caffeine)

Information for this minor interaction is available on the professional version.

Minor

acetaminophen hyoscyamine

Applies to: CVS Extra Strength Headache Relief (acetaminophen / aspirin / caffeine) and MSP-Blu (hyoscyamine / methenamine / methylene blue / phenyl salicylate)

Information for this minor interaction is available on the professional version.

Drug and food interactions

Major

acetaminophen food

Applies to: CVS Extra Strength Headache Relief (acetaminophen / aspirin / caffeine)

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.

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Moderate

aspirin food

Applies to: CVS Extra Strength Headache Relief (acetaminophen / aspirin / caffeine)

Ask your doctor before using aspirin together with ethanol. Do not drink alcohol while taking aspirin. Alcohol can increase your risk of stomach bleeding caused by aspirin. Call your doctor at once if you have symptoms of bleeding in your stomach or intestines. This includes black, bloody, or tarry stools, or coughing up blood or vomit that looks like coffee grounds. 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.

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Moderate

hyoscyamine food

Applies to: MSP-Blu (hyoscyamine / methenamine / methylene blue / phenyl salicylate)

Ask your doctor before using hyoscyamine together with ethanol. Use alcohol cautiously. Alcohol may increase drowsiness and dizziness while you are taking hyoscyamine. 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.

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Minor

caffeine food

Applies to: CVS Extra Strength Headache Relief (acetaminophen / aspirin / caffeine)

Information for this minor interaction is available on the professional version.

Minor

aspirin food

Applies to: CVS Extra Strength Headache Relief (acetaminophen / aspirin / caffeine)

Information for this minor interaction is available on the professional version.

Therapeutic duplication warnings

Therapeutic duplication is the use of more than one medicine from the same drug category or therapeutic class to treat the same condition. This can be intentional in cases where drugs with similar actions are used together for demonstrated therapeutic benefit. It can also be unintentional in cases where a patient has been treated by more than one doctor, or had prescriptions filled at more than one pharmacy, and can have potentially adverse consequences.

Duplication

Nonsteroidal anti-inflammatories

Therapeutic duplication

The recommended maximum number of medicines in the 'nonsteroidal anti-inflammatories' category to be taken concurrently is usually one. Your list includes two medicines belonging to the 'nonsteroidal anti-inflammatories' category:

  • CVS Extra Strength Headache Relief (acetaminophen/aspirin/caffeine)
  • MSP-Blu (hyoscyamine/methenamine/methylene blue/phenyl salicylate)

Note: In certain circumstances, the benefits of taking this combination of drugs may outweigh any risks. Always consult your healthcare provider before making changes to your medications or dosage.


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Drug Interaction Classification

These classifications are only a guideline. The relevance of a particular drug interaction to a specific individual is difficult to determine. Always consult your healthcare provider before starting or stopping any medication.
Major Highly clinically significant. Avoid combinations; the risk of the interaction outweighs the benefit.
Moderate Moderately clinically significant. Usually avoid combinations; use it only under special circumstances.
Minor 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.
Unknown No interaction information available.

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.

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