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Interactions between Tacrolimus and Tremfya

1 drug interaction and 15 additional warnings found for the following 2 drugs:

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Drug interactions

Moderate drug interactions

Moderate:

tacrolimus guselkumab

Applies to: tacrolimus and Tremfya (guselkumab)
Monitor

Coadministration of interleukin (IL) inhibitors with CYP450 substrates that are also immunosuppressants could result in an alteration of the plasma concentration of the CYP450 substrate and an increased risk of shared side effects, such as infection or myelosuppression. In general, inflammation is associated with an elevation of pro-inflammatory cytokines like IL-1 beta and IL-6, which can bind to receptors present on hepatocytes and affect the expression level of the CYP450 isoenzyme. Agents that target these cytokines may affect the levels of CYP450 isoenzymes and result in altered drug metabolism of their substrates. The therapeutic target and disease state being treated may play a role in the significance of this interaction. The most evidence is currently for agents targeting the actions of IL-6 and in disease states with high levels of inflammation, such as rheumatoid arthritis (RA), rather than in patients with psoriasis and atopic dermatitis. Clinical data are limited, variable, and not available for all agents that reduce cytokine production. Studies involving the IL-6 inhibitors tocilizumab and sarilumab in RA patients showed similar results on the CYP450 3A4 probe, simvastatin, with reductions in the systemic exposure (AUC) of simvastatin and its metabolite (simvastatin acid) of 45% to 57% and 36% to 39%, respectively. Smaller reductions in the AUC of other probe substrates, omeprazole (2C19) and dextromethorphan (2D6), were also observed following treatment with tocilizumab. However, the AUC of CYP450 substrates is not always reduced. A study with brodalumab showed an increase in the AUC of midazolam (3A4) by 24%. Alternatively, some IL inhibitors (e.g., risankizumab and tildrakizumab) have not been shown to affect any CYP450 substrates when evaluated with probe substrates.

Management

Caution may be advisable when IL inhibitors are prescribed to patients receiving concomitant drugs that are both CYP450 substrates and immunosuppressants. Clinical and/or laboratory monitoring may be appropriate following the initiation or withdrawal of such treatments, and the dosage(s) of the CYP450 substrate(s) adjusted accordingly. Clinicians should note that the effects of IL inhibitors on CYP450 activities may persist for several weeks after stopping therapy. Individual product labeling should be consulted for these products. Some manufacturers no longer recommend general precautions with CYP450 substrates due to updated study data indicating no clinically significant changes in the exposure of probe CYP450 substrates. However, CYP450 substrates that are also immunosuppressants may still require additional precautions given a similar adverse effect profile to the IL inhibitor.

References (15)
  1. (2003) "Product Information. Amevive (alefacept)." Biogen
  2. Cerner Multum, Inc. "UK Summary of Product Characteristics."
  3. (2008) "Product Information. Arcalyst (rilonacept)." Regeneron Pharmaceuticals Inc
  4. (2009) "Product Information. Stelara (ustekinumab)." Centocor Inc
  5. (2009) "Product Information. Ilaris (canakinumab)." Novartis Pharmaceuticals
  6. (2010) "Product Information. Actemra (tocilizumab)." Genentech
  7. (2014) "Product Information. Sylvant (siltuximab)." Janssen Biotech, Inc.
  8. (2015) "Product Information. Cosentyx (secukinumab)." Novartis Pharmaceuticals
  9. (2016) "Product Information. Taltz Autoinjector (ixekizumab)." Eli Lilly and Company
  10. (2023) "Product Information. Bimzelx (bimekizumab)." UCB Australia Pty Ltd T/A UCB Pharma Division of UCB Australia
  11. (2023) "Product Information. Bimzelx (bimekizumab)." UCB Pharma Ltd
  12. (2023) "Product Information. Bimzelx Prefilled Syringe (bimekizumab)." UCB Pharma Inc
  13. (2023) "Product Information. Bimzelx (bimekizumab)." UCB Canada Inc
  14. Bruin G, Hasselberg A, Koroleva I, et al. (2019) "Secukinumab treatment does not alter the pharmacokinetics of the cytochrome P450 3A4 substrate midazolam in patients with moderate to severe psoriasis." Clin Pharmacol Ther, 106, p. 1380-8
  15. de Jong LM, Klomp SD, Treijtel N, Rissmann R, Swen JJ, Manson ML (2022) "A systematic review on disease-drug-drug interactions with immunomodulating drugs: a critical appraisal of risk assessment and drug labelling." Br J Clin Pharmacol, 88, p. 4387-402

Food/lifestyle interactions

Major food/lifestyle interactions

Major:

tacrolimus Food/Lifestyle

Applies to: tacrolimus
Generally avoid

Grapefruit and/or grapefruit juice may increase the plasma concentrations of tacrolimus. The proposed mechanism for the interaction is inhibition of CYP450 3A4-mediated first-pass metabolism in the gut wall by certain compounds present in grapefruit. Inhibition of hepatic CYP450 3A4 may also contribute. Although clinical data are lacking, this interaction may result in increased risk of serious adverse reactions such as nephro- and neurotoxicity, as well as other adverse effects associated with tacrolimus such as malignancies, infections, diabetes, hyperkalemia, hypertension, and QT prolongation.

Generally avoid

Alcohol may modify the rate of tacrolimus release from extended release formulations, thereby potentially increasing the risk of serious adverse reactions.

Adjust dosing interval

Coadministration with food decreases the rate and extent of tacrolimus absorption. This effect is greatest after a high-fat meal.

Management

Patients should avoid consumption of food or drink containing grapefruit during treatment with tacrolimus. Concomitant use of tacrolimus, especially extended release formulations, with alcohol should also be avoided. Tacrolimus extended release formulations should be administered on an empty stomach, at least 1 hour before or 2 hours after a meal, and tacrolimus immediate release formulations should be taken consistently every day with or without food.

References (18)
  1. (2001) "Product Information. Prograf (tacrolimus)." Fujisawa
  2. Hooks MA (1994) "Tacrolimus, a new immunosuppressant--a review of the literature." Ann Pharmacother, 28, p. 501-11
  3. (2022) "Product Information. Adoport (tacrolimus)." Sandoz Ltd
  4. (2024) "Product Information. TACrolimus (Sandoz) (TACrolimus)." Sandoz Pty Ltd
  5. (2023) "Product Information. Prograf (tacrolimus)." Astellas Pharma US, Inc
  6. (2023) "Product Information. Astagraf XL (tacrolimus)." Astellas Pharma US, Inc
  7. (2025) "Product Information. Envarsus XR (tacrolimus)." Veloxis Pharmaceuticals
  8. (2024) "Product Information. Prograf (tacrolimus)." Astellas Pharma Canada Inc
  9. (2024) "Product Information. Advagraf (tacrolimus)." Astellas Pharma Canada Inc
  10. (2024) "Product Information. Envarsus PA (tacrolimus)." Endo Operations LTD
  11. (2024) "Product Information. Dailiport (tacrolimus)." Sandoz Ltd
  12. (2025) "Product Information. Prograf (tacrolimus)." Astellas Pharma Ltd
  13. (2025) "Product Information. Envarsus (tacrolimus)." Chiesi Ltd
  14. (2025) "Product Information. Advagraf (tacrolimus)." Astellas Pharma Ltd
  15. (2025) "Product Information. Modigraf (tacrolimus)." Astellas Pharma Ltd
  16. (2024) "Product Information. Advagraf XL (TACrolimus)." Astellas Pharma Australia Pty Ltd
  17. (2024) "Product Information. proGRAF (TACrolimus)." Astellas Pharma Australia Pty Ltd
  18. (2024) "Product Information. TACrolimus XR (Sandoz) (TACrolimus)." Sandoz Pty Ltd

Disease interactions

14 potential interactions Applies to: 13 conditions, including High Blood Pressure, Heart Failure, Diabetes Mellitus, Hyperkalemia, and Liver Disease.

Cardiovascular Conditions and Disorders

Major:

tacrolimus

Tacrolimus has a major potential interaction with Cardiovascular Conditions and Disorders.

Tacrolimus may prolong the QT/QTc interval and may cause Torsade de Pointes. It is recommended to avoid tacrolimus in patients with congenital long QT syndrome. In patients with congestive heart failure, bradyarrhythmias, those taking certain antiarrhythmic medications or other medicinal products that lead to QT prolongation, and those with electrolyte disturbances such as hypokalemia, hypocalcemia, or hypomagnesemia, consider monitoring of tacrolimus whole blood concentrations and obtaining electrocardiograms and monitoring electrolytes (magnesium, potassium, calcium) periodically during treatment.

Diabetes Mellitus

Major:

tacrolimus

Tacrolimus has a major potential interaction with Diabetes Mellitus.

Tacrolimus can induce post-transplant insulin-dependent diabetes mellitus (PTDM). Temporary insulin therapy has been required in some patients, while long-term insulin use has been necessary in others. Reversible insulin dependence has occurred in kidney and liver transplant patients. PTDM has occurred in a greater percentage of tacrolimus-treated (20%) versus cyclosporine-treated (4%) kidney transplant patients. Black and Hispanic patients are at increased risk for PTDM. Therapy with tacrolimus should be administered cautiously in patients with pre-transplant diabetes mellitus.

Electrolyte Abnormalities

Major:

tacrolimus

Tacrolimus has a major potential interaction with Electrolyte Abnormalities.

Tacrolimus may prolong the QT/QTc interval and may cause Torsade de Pointes. It is recommended to avoid tacrolimus in patients with congenital long QT syndrome. In patients with congestive heart failure, bradyarrhythmias, those taking certain antiarrhythmic medications or other medicinal products that lead to QT prolongation, and those with electrolyte disturbances such as hypokalemia, hypocalcemia, or hypomagnesemia, consider monitoring of tacrolimus whole blood concentrations and obtaining electrocardiograms and monitoring electrolytes (magnesium, potassium, calcium) periodically during treatment.

Heart Failure

Major:

tacrolimus

Tacrolimus has a major potential interaction with Heart Failure.

Tacrolimus may prolong the QT/QTc interval and may cause Torsade de Pointes. It is recommended to avoid tacrolimus in patients with congenital long QT syndrome. In patients with congestive heart failure, bradyarrhythmias, those taking certain antiarrhythmic medications or other medicinal products that lead to QT prolongation, and those with electrolyte disturbances such as hypokalemia, hypocalcemia, or hypomagnesemia, consider monitoring of tacrolimus whole blood concentrations and obtaining electrocardiograms and monitoring electrolytes (magnesium, potassium, calcium) periodically during treatment.

High Blood Pressure

Moderate:

tacrolimus

Tacrolimus has a moderate potential interaction with High Blood Pressure.

The use of tacrolimus has been associated with hypertension. Therapy with tacrolimus should be administered cautiously in patients with elevated blood pressure. Close monitoring of blood pressure is recommended.

History, Tuberculosis

Moderate:

Tremfya

The guselkumab in Tremfya has a moderate potential interaction with History, Tuberculosis.

Before initiating certain interleukin inhibitors, patients should be screened for latent tuberculosis infection with a tuberculin skin test. Do not administer these agents to patients with an active tuberculosis infection. Patients testing positive in tuberculosis screening should be treated by standard medical practice prior to therapy. Anti-tuberculosis therapy should be considered prior to initiation of therapy in patients with a past history of latent or active tuberculosis in whom an adequate course of treatment cannot be confirmed, and for patients with a negative test for latent tuberculosis but having risk factors for tuberculosis infection.

Hyperkalemia

Moderate:

tacrolimus

Tacrolimus has a moderate potential interaction with Hyperkalemia.

The use of tacrolimus has been associated with hyperkalemia. Therapy with tacrolimus should be administered cautiously in patients with elevated serum potassium levels. Close monitoring of potassium levels is recommended. Careful consideration should be given prior to use of other agents also associated with hyperkalemia (e.g., potassium-sparing diuretics, ACE inhibitors, angiotensin receptor blockers) during tacrolimus therapy.

Immunodeficiency

Major:

tacrolimus

Tacrolimus has a major potential interaction with Immunodeficiency.

Due to immunosuppression, patients receiving tacrolimus are at increased risk for infections, including polyoma virus infections, post-transplant lymphoproliferative disorder (PTLD) and CMV viremia and CMV disease. Polyoma virus infections in transplant patients may have serious, and sometimes fatal, outcomes. These include polyoma virus-associated nephropathy (PVAN), mostly due to BK virus infection, and JC virus-associated progressive multifocal leukoencephalopathy (PML). Cases of PML have been reported in patients treated with tacrolimus. Risk factors for PML include treatment with immunosuppressant therapies and impairment of immune function. PTLD associated with Epstein-Barr Virus (EBV), has been reported in immunosuppressed organ transplant patients. Patients that are Epstein-Barr Virus (EBV) seronegative appears to have the greatest risk of developing PTLD. It is recommended to monitor EBV serology during tacrolimus therapy. Caution and patient monitoring is recommended when using this drug in immunosuppressed patients.

Infection

Major:

tacrolimus

Tacrolimus has a major potential interaction with Infection.

Due to immunosuppression, patients receiving tacrolimus are at increased risk for infections, including polyoma virus infections, post-transplant lymphoproliferative disorder (PTLD) and CMV viremia and CMV disease. Polyoma virus infections in transplant patients may have serious, and sometimes fatal, outcomes. These include polyoma virus-associated nephropathy (PVAN), mostly due to BK virus infection, and JC virus-associated progressive multifocal leukoencephalopathy (PML). Cases of PML have been reported in patients treated with tacrolimus. Risk factors for PML include treatment with immunosuppressant therapies and impairment of immune function. PTLD associated with Epstein-Barr Virus (EBV), has been reported in immunosuppressed organ transplant patients. Patients that are Epstein-Barr Virus (EBV) seronegative appears to have the greatest risk of developing PTLD. It is recommended to monitor EBV serology during tacrolimus therapy. Caution and patient monitoring is recommended when using this drug in immunosuppressed patients.

Moderate:

Tremfya

The guselkumab in Tremfya has a moderate potential interaction with Infection.

There have been reports of serious infections, including infections with opportunistic pathogens, and reactivation of latent infections in patients receiving interleukin inhibitors. Treatment with these agents should not be initiated in patients with an active infection until the infection resolves or is adequately treated. Caution is recommended when considering the use of interleukin inhibitors in patients with a history of recurrent infections, underlying conditions which may predispose them to infections, or chronic, latent, or localized infections.

Liver Disease

Major:

tacrolimus

Tacrolimus has a major potential interaction with Liver Disease.

Tacrolimus undergoes significant hepatic metabolism, primarily by CYP450 3A enzymes. Less than 5% of tacrolimus is eliminated unchanged in the bile and <1% is eliminated unchanged in the urine. Moderate or severe hepatic dysfunction or impaired post-transplant hepatic function may alter the metabolic and therapeutic activity of tacrolimus and increase the whole blood tacrolimus concentration. Therapy with tacrolimus should be administered cautiously and dosage adjustments considered in the presence of moderate or severe hepatic impairment.

Renal Dysfunction

Major:

tacrolimus

Tacrolimus has a major potential interaction with Renal Dysfunction.

Nephrotoxicity has been reported in 52% of kidney and 40% of liver transplant patients. Renal toxicity includes increasing serum creatinine and blood urea nitrogen, and renal failure sometimes requiring hemodialysis. Oliguria and hematuria also have been reported. The mechanism of tacrolimus-induced renal dysfunction is not well established. Renal toxicity appears to be dose-related, although toxicity may still occur even at suggested therapeutic concentrations. Therapy with tacrolimus should be administered cautiously and dosage reductions may be necessary in patients with compromised renal function. Alternative immunosuppressive therapy should be considered in the presence of persistent or worsening renal dysfunction.

Tuberculosis, Active

Moderate:

Tremfya

The guselkumab in Tremfya has a moderate potential interaction with Tuberculosis, Active.

Before initiating certain interleukin inhibitors, patients should be screened for latent tuberculosis infection with a tuberculin skin test. Do not administer these agents to patients with an active tuberculosis infection. Patients testing positive in tuberculosis screening should be treated by standard medical practice prior to therapy. Anti-tuberculosis therapy should be considered prior to initiation of therapy in patients with a past history of latent or active tuberculosis in whom an adequate course of treatment cannot be confirmed, and for patients with a negative test for latent tuberculosis but having risk factors for tuberculosis infection.

Tuberculosis, Latent

Moderate:

Tremfya

The guselkumab in Tremfya has a moderate potential interaction with Tuberculosis, Latent.

Before initiating certain interleukin inhibitors, patients should be screened for latent tuberculosis infection with a tuberculin skin test. Do not administer these agents to patients with an active tuberculosis infection. Patients testing positive in tuberculosis screening should be treated by standard medical practice prior to therapy. Anti-tuberculosis therapy should be considered prior to initiation of therapy in patients with a past history of latent or active tuberculosis in whom an adequate course of treatment cannot be confirmed, and for patients with a negative test for latent tuberculosis but having risk factors for tuberculosis infection.

More resources

tacrolimus

A total of 917 drugs are known to interact with tacrolimus.

Tremfya

A total of 331 drugs are known to interact with Tremfya.

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.