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Drug Interactions between Co-trimoxazole and tacrolimus

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

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Interactions between your drugs

Moderate

sulfamethoxazole tacrolimus

Applies to: Co-trimoxazole (sulfamethoxazole / trimethoprim) and tacrolimus

Using sulfamethoxazole together with tacrolimus may increase the risk of kidney and/or nerve damage. 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 medical attention if you experience signs and symptoms that may suggest kidney damage such as nausea, vomiting, loss of appetite, increased or decreased urination, sudden weight gain or weight loss, fluid retention, swelling, shortness of breath, muscle cramps, tiredness, weakness, dizziness, confusion, and irregular heart rhythm. Be sure to drink plenty of fluids if you develop diarrhea or vomiting during treatment with these medications, as dehydration can also harm the kidney. In addition, let your doctor know if you develop seizures; hearing problems; or numbness, burning or tingling in your hands and feet. 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

trimethoprim tacrolimus

Applies to: Co-trimoxazole (sulfamethoxazole / trimethoprim) and tacrolimus

Using trimethoprim together with tacrolimus may increase the risk of kidney and/or nerve damage. 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 medical attention if you experience signs and symptoms that may suggest kidney damage such as nausea, vomiting, loss of appetite, increased or decreased urination, sudden weight gain or weight loss, fluid retention, swelling, shortness of breath, muscle cramps, tiredness, weakness, dizziness, confusion, and irregular heart rhythm. Be sure to drink plenty of fluids if you develop diarrhea or vomiting during treatment with these medications, as dehydration can also harm the kidney. In addition, let your doctor know if you develop seizures; hearing problems; or numbness, burning or tingling in your hands and feet. 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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Drug and food interactions

Moderate

tacrolimus food

Applies to: tacrolimus

Tacrolimus should be taken on a consistent schedule before or after you eat at the same times each day. Grapefruit and grapefruit juice may increase the amount of tacrolimus in your body. This can lead to potentially dangerous side effects and should be avoided. If you are already consuming grapefruit products, do not increase or decrease the amount of these products in your diet without first talking to your doctor.

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Moderate

sulfamethoxazole food

Applies to: Co-trimoxazole (sulfamethoxazole / trimethoprim)

Ask your doctor before using sulfamethoxazole together with ethanol. Contact your doctor if you experience unpleasant side effects such as fast heartbeats, warmth or redness under your skin, tingly feeling, nausea, or vomiting. If you experience these side effects, you may need to avoid ethanol while taking sulfamethoxazole. You should check your food and medicine labels to see if these products contain ethanol. 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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Therapeutic duplication warnings

No 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.

See also

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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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