Interaction between Baricitinib and Deflazacort
Major
Others
| ID | DDInter165 and DDInter492 |
| Interaction | Coadministration of baricitinib or tofacitinib with other immuno- or myelosuppressive agents may potentiate the risk of infections as well as lymphoma and other malignancies. Serious and sometimes fatal infections due to bacterial, mycobacterial, invasive fungal, viral, or other opportunistic pathogens have been reported in patients receiving baricitinib and tofacitinib, most of whom were taking concomitant immunosuppressants such as methotrexate or corticosteroids. Baricitinib and tofacitinib, both Janus kinase (JAK) inhibitors, have been associated with an increased risk of diverticulitis (DV) and gastrointestinal (GI) perforation, particularly in patients with risk factors (e.g., history of diverticulosis or diverticulitis, concomitant use of other agents associated with DV). Baricitinib and tofacitinib, both Janus kinase (JAK) inhibitors, have been associated with an increased risk of diverticulitis (DV) and gastrointestinal (GI) perforation, particularly in patients with risk factors. |
| Management | Close monitoring for the development of infection is recommended if baricitinib or tofacitinib is used in combination with other immuno- or myelosuppressive agents, including the possible development of tuberculosis in patients who tested negative for latent tuberculosis infection prior to initiating therapy. Lymphocyte and neutrophil counts as well as hemoglobin should be evaluated at baseline and regularly during therapy, and the baricitinib or tofacitinib dosage adjusted as necessary in accordance with the product labeling. Patients should be advised to contact their physician if they develop signs and symptoms of infection such as fever, chills, diarrhea, sore throat, muscle aches, shortness of breath, blood in phlegm, weight loss, red or inflamed skin, body sores, and pain or burning during urination. If a serious infection, an opportunistic infection, or sepsis develops, baricitinib should be interrupted until the infection is controlled. Caution is recommended when using baricitinib or tofacitinib in patients with a history of diverticular disease and in patients receiving long-term concomitant treatment with drugs associated with an increased risk of DV and/or GI perforation, such as aspirin, NSAIDs, corticosteroids, and opioids. Patients should be advised to contact their healthcare provider if they experience signs of DV or GI perforation, such as severe abdominal pain, fever, nausea, or vomiting. |
| References | |
| Alternative for Baricitinib |
L04A
More
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| Alternative for Deflazacort |
H02A
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Potential Metabolism Interactions
Substrate-Substrate Interaction：If more than one drug is metabolized by the same CYP, it is possible that its metabolism is inhibited because of the competition between the drugs. That means, it can be useful to lower the dosage of the drugs in the drug-cocktail because they remain longer in the organism than in monotherapy.
Inhibitor-Inhibitor Interaction：Combining two or more inhibitors of one CYP, should be compensated by lowering the dosage of these drugs because the metabolism is reduced and the drugs remain longer in the organism than in monotherapy. Not adapting the dosage bears the risk of even more side effects.
Inhibitor-Substrate Interaction：Combining drugs that have inhibitory effect and are substrates of one particular CYP, should be compensated by lowering the dosage. They rest longer in the organism than in monotherapy. Not adapting the dosage bears the risk of even more side effects.