OLUMIANT (baricitinib) is a Janus kinase (JAK) inhibitor with the chemical name {1-(ethylsulfonyl)-3-[4-(7 H -pyrrolo[2,3- d ]pyrimidin-4-yl)-1 H -pyrazol-1-yl]azetidin-3-yl}acetonitrile. Baricitinib has an empirical formula of C 16 H 17 N 7 O 2 S and a molecular weight of 371.42. Baricitinib has the following structural formula: OLUMIANT tablets contain a recessed area on each face of the tablet surface and are available for oral administration as debossed, film-coated tablets. The 1 mg tablet is very light pink, round, debossed with “Lilly” on one side and “1” on the other. The 2 mg tablet is light pink, oblong, debossed with “Lilly” on one side and “2” on the other. The 4 mg tablet is medium pink, round, debossed with “Lilly” on one side and “4” on the other. Each tablet contains 1, 2, or 4 mg of baricitinib and the following inactive ingredients: croscarmellose sodium, ferric oxide, lecithin (soya), magnesium stearate, mannitol, microcrystalline cellulose, polyethylene glycol, polyvinyl alcohol, talc and titanium dioxide. Structural Formula

OLUMIANT ® is a Janus kinase (JAK) inhibitor indicated for: the treatment of adult patients with moderately to severely active rheumatoid arthritis who have had an inadequate response to one or more TNF blockers. Limitations of Use : Not recommended for use in combination with other JAK inhibitors, biologic DMARDs, or with potent immunosuppressants such as azathioprine and cyclosporine. the treatment of COVID-19 in hospitalized adults requiring supplemental oxygen, non-invasive or invasive mechanical ventilation, or ECMO. the treatment of adult patients with severe alopecia areata. Limitations of Use : Not recommended for use in combination with other JAK inhibitors, biologic immunomodulators, cyclosporine or other potent immunosuppressants

Rheumatoid Arthritis OLUMIANT ® (baricitinib) is indicated for the treatment of adult patients with moderately to severely active rheumatoid arthritis who have had an inadequate response to one or more tumor necrosis factor (TNF) blockers. Limitations of Use : Not recommended for use in combination with other JAK inhibitors, biologic disease-modifying antirheumatic drugs (DMARDs), or with potent immunosuppressants such as azathioprine and cyclosporine

Coronavirus Disease 2019 (COVID-19) OLUMIANT is indicated for the treatment of coronavirus disease 2019 (COVID-19) in hospitalized adults requiring supplemental oxygen, non-invasive or invasive mechanical ventilation, or extracorporeal membrane oxygenation (ECMO)

Alopecia Areata OLUMIANT is indicated for the treatment of adult patients with severe alopecia areata. Limitations of Use : Not recommended for use in combination with other JAK inhibitors, biologic immunomodulators, cyclosporine or other potent immunosuppressants.

OLUMIANT is available as debossed, film-coated tablets: 1 mg tablet contains a recessed area on each face of the tablet surface, is very light pink, round, debossed with “Lilly” on one side and “1” on the other. 2 mg tablet contains a recessed area on each face of the tablet surface, is light pink, oblong, debossed with “Lilly” on one side and “2” on the other. 4 mg tablet contains a recessed area on each face of the tablet surface, is medium pink, round, debossed with “Lilly” on one side and “4” on the other. Tablets: 4 mg, 2 mg, 1 mg

Administration Instructions: See the full prescribing information for recommended evaluations and immunizations prior to treatment. Rheumatoid Arthritis and Alopecia Areata: Avoid initiation or interrupt OLUMIANT in patients with anemia (hemoglobin <8 g/dL), lymphopenia (ALC <500 cells/mm 3 ) or neutropenia (ANC <1000 cells/mm 3 ). ( 2.1 , 2.5 , 5.8 ) COVID-19: Avoid initiation or interrupt OLUMIANT in patients with lymphopenia (ALC <200 cells/mm 3 ) or neutropenia (ANC <500 cells/mm 3 ). ( 2.1 , 2.5 , 5.8 ) Recommended Dosage : Rheumatoid Arthritis: 2 mg once daily. OLUMIANT may be used as monotherapy or in combination with methotrexate or other non-biologic DMARDs. COVID-19: 4 mg once daily for up to 14 days. Alopecia Areata: 2 mg once daily. Increase to 4 mg once daily, if the response to treatment is not adequate. For patients with nearly complete or complete scalp hair loss, with or without substantial eyelash or eyebrow hair loss, consider treating with 4 mg once daily. Reduce the dose to 2 mg once daily when an adequate response has been achieved. Dosage Modifications in Patients with Renal or Hepatic Impairment, or Cytopenias See the full prescribing information for dosage modifications by indication. ( 2.5 , 2.6 , 5.8 ) 2.1 Recommended Evaluations and Immunization Prior to Treatment Initiation Prior to OLUMIANT treatment initiation, consider performing the following evaluations: Active and latent tuberculosis (TB) infection evaluation – OLUMIANT should not be given to patients with active tuberculosis (TB). If latent infection is positive in patients with rheumatoid arthritis or alopecia areata, consider treatment for TB prior to OLUMIANT use . Viral hepatitis screening in accordance with clinical guidelines . Complete blood count – Assess baseline values and verify whether treatment can be initiated: - In patients with rheumatoid arthritis or alopecia areata, OLUMIANT initiation is not recommended in patients with an absolute lymphocyte count (ALC) <500 cells/μl, absolute neutrophil count (ANC) <1000 cells/μl, or hemoglobin level <8 g/dL. - In patients with COVID-19, OLUMIANT initiation is not recommended if the ALC is <200 cells/μl or if the ANC is <500 cells/μl. Monitor complete blood counts during treatment and modify dosage as recommended . Baseline hepatic and renal function – Assess baseline values and monitor patients for laboratory changes. Modify dosage based on hepatic and renal impairment, and laboratory abnormalities . In patients with rheumatoid arthritis or alopecia areata, update immunizations in agreement with current immunization guidelines

Dosage Recommendations in Rheumatoid Arthritis The recommended dosage of OLUMIANT is 2 mg once daily orally, with or without food . An alternative administration for patients unable to swallow tablets may be used . OLUMIANT may be used as monotherapy or in combination with methotrexate or other non-biologic DMARDs

Dosage Recommendations in COVID-19 The recommended dosage of OLUMIANT for adults is 4 mg once daily orally, with or without food, for 14 days or until hospital discharge, whichever occurs first. An alternative administration for patients unable to swallow tablets may be used

Dosage Recommendations in Alopecia Areata The recommended dosage of OLUMIANT is 2 mg once daily orally, with or without food. Increase to 4 mg once daily if the response to treatment is not adequate. For patients with nearly complete or complete scalp hair loss, with or without substantial eyelash or eyebrow hair loss, consider treating with 4 mg once daily, with or without food. Once patients achieve an adequate response to treatment with 4 mg, decrease the dosage to 2 mg once daily

Dosage Modifications Due to Infections, Cytopenias and Anemia Rheumatoid Arthritis and Alopecia Areata Avoid use of OLUMIANT in patients with active, serious or opportunistic infection, including localized infections. If a patient develops a serious infection hold treatment with OLUMIANT until the infection is controlled . Dosage modifications for patients with rheumatoid arthritis or alopecia areata and cytopenias or anemia are described in Table 1 . Table 1: Dosage Modifications for Cytopenias and Anemia in Patients with Rheumatoid Arthritis or Alopecia Areata Laboratory Analyte Laboratory Analyte Value Recommendation Absolute Lymphocyte Count (ALC) ≥500 cells/μL Maintain dosage <500 cells/μL Interrupt OLUMIANT until ALC ≥500 cells/μL Absolute Neutrophil Count (ANC) ≥1000 cells/μL Maintain dosage <1000 cells/μL Interrupt OLUMIANT until ANC ≥1000 cells/μL Hemoglobin ≥8 g/dL Maintain dosage <8 g/dL Interrupt OLUMIANT until hemoglobin ≥8 g/dL COVID-19 Monitor patients for signs and symptoms of new infections during treatment with OLUMIANT. The risks and benefits of treatment with OLUMIANT in COVID-19 patients with other concurrent infections should be considered . Dosage modifications for patients with COVID-19 and cytopenias are described in Table 2 . Table 2: Dosage Modifications for Cytopenias in Patients with COVID-19 Laboratory Analyte Laboratory Analyte Value Recommendation Absolute Lymphocyte Count (ALC) ≥200 cells/μL Maintain dosage <200 cells/μL Interrupt OLUMIANT until ALC ≥200 cells/μL Absolute Neutrophil Count (ANC) ≥500 cells/μL Maintain dosage <500 cells/μL Interrupt OLUMIANT until ANC ≥500 cells/μL 2.6 Dosage Modifications for Patients with Renal Impairment or Hepatic Impairment Rheumatoid Arthritis Renal Impairment Dosage modifications for patients with rheumatoid arthritis and renal impairment are described in Table 3 . Table 3: Dosage Modifications for Patients with Rheumatoid Arthritis and Renal Impairment Renal Impairment Stage Estimated Glomerular Filtration Rate (eGFR) Recommendation Mild 60 – <90 mL/minute/1.73 m 2 2 mg once daily Moderate 30 - <60 mL/min/1.73 m 2 1 mg once daily Severe <30 mL/minute/1.73 m 2 Not recommended Hepatic Impairment OLUMIANT is not recommended for use in patients with severe hepatic impairment. Interrupt OLUMIANT, if increases in ALT or AST are observed and drug-induced liver injury (DILI) is suspected, until the diagnosis of DILI is excluded . COVID-19 Renal Impairment Dosage modifications for patients with COVID-19 and renal impairment are described in Table 4 . Table 4: Dosage Modifications for Patients with COVID-19 and Renal Impairment Renal Impairment Stage Estimated Glomerular Filtration Rate (eGFR) Recommendation Mild 60 - <90 mL/min/1.73m 2 4 mg once daily Moderate 30 - <60 mL/min/1.73m 2 2 mg once daily Severe 15 - <30 mL/min/1.73m 2 1 mg once daily End Stage Renal Disease, Patients on Dialysis, or Acute Kidney Injury <15 mL/min/1.73m 2 Not recommended Hepatic Impairment It is not known if dosage adjustment is needed in patients with COVID-19 and severe hepatic impairment. OLUMIANT should only be used in patients with COVID-19 and severe hepatic impairment if the potential benefit outweighs the potential risk. Interrupt OLUMIANT, if increases in ALT or AST are observed and DILI is suspected, until the diagnosis of DILI is excluded . Alopecia Areata Renal Impairment Dosage modifications for patients with alopecia areata and renal impairment are described in Table 5 . Table 5: Dosage Modifications for Patients with Alopecia Areata and Renal Impairment Renal Impairment Stage Estimated Glomerular Filtration Rate (eGFR) Recommendation If the recommended dosage is 2 mg once daily If the recommended dosage is 4 mg once daily Mild 60 – <90 mL/minute/1.73 m 2 Maintain dosage Moderate 30 – <60 mL/min/1.73 m 2 Reduce to 1 mg once daily Reduce to 2 mg once daily Severe <30 mL/minute/1.73 m 2 Not recommended Hepatic Impairment OLUMIANT is not recommended for use in patients with severe hepatic impairment. Interrupt OLUMIANT, if increases in ALT or AST are observed and DILI is suspected, until the diagnosis of DILI is excluded

Dosage Modifications Due to Drug Interactions Rheumatoid Arthritis, COVID-19 or Alopecia Areata The recommended dosage of OLUMIANT in patients taking strong Organic Anion Transporter 3 (OAT3) inhibitors, such as probenecid, are shown in Table 6 . Table 6: Dosage Modifications when Coadministered with Strong OAT3 Inhibitors in Patients With Rheumatoid Arthritis, COVID-19 or Alopecia Areata Concomitant Medication Recommendation Strong OAT3 inhibitors (e.g., probenecid) If the recommended dosage is 4 mg once daily, reduce dosage to 2 mg once daily. If the recommended dosage is 2 mg once daily, reduce dosage to 1 mg once daily. If the recommended dosage is 1 mg once daily, consider discontinuing probenecid

Alternative Administration for Patients Unable to Swallow Tablets For patients who are unable to swallow whole tablets, an alternative mode of administration may be considered: Oral dispersion Gastrostomy tube (G tube) Nasogastric tube (NG tube) or orogastric tube (OG tube) Intact tablets are not hazardous. Tablets may be crushed to facilitate dispersion. It is not known if powder from the crushed tablets may constitute a reproductive hazard to the preparer. If tablets are crushed, use proper control measures (e.g., ventilated enclosure) or personal protective equipment (i.e., N95 respirator). Dispersed tablets are stable in water for up to 4 hours. Preparation Instructions for Alternative Administration : Oral administration of dispersed tablets in water: For patients who are unable to swallow whole tablets, 1-mg, 2-mg, or 4-mg baricitinib tablet(s), or any combination of tablets necessary to achieve the desired dose up to 4-mg may be placed in a container with approximately 10 mL (5 mL minimum) of room temperature water, dispersed by gently swirling the tablet(s) and immediately taken orally. The container should be rinsed with an additional 10 mL (5 mL minimum) of room temperature water and the entire contents swallowed by the patient ( Table 7 ). Administration via G tube: For patients with a G tube, 1-mg, 2-mg, or 4-mg baricitinib tablet(s), or any combination of tablets necessary to achieve the desired dose up to 4-mg may be placed in a container with approximately 15 mL (10 mL minimum) of room temperature water and dispersed with gentle swirling. Ensure the tablet(s) are sufficiently dispersed to allow free passage through the tip of the syringe. Withdraw entire contents from the container into an appropriate syringe and immediately administer through the gastric feeding tube. Rinse container with approximately 15 mL (10 mL minimum) of room temperature water, withdraw the contents into the syringe, and administer through the tube ( Table 7 ). Administration via NG or OG tube: For patients with a NG or OG tube, 1-mg, 2-mg, or 4-mg baricitinib tablet(s), or a combination of tablets necessary to achieve the desired dose up to 4-mg may be placed into a container with approximately 30 mL of room temperature water and dispersed with gentle swirling. Ensure the tablet(s) are sufficiently dispersed to allow free passage through the tip of the syringe. Withdraw the entire contents from the container into an appropriate syringe and immediately administer through the enteral feeding tube. To avoid clogging of small diameter tubes (smaller than 12 Fr), the syringe can be held horizontally and shaken during administration. Rinse container with a sufficient amount (minimum of 15 mL) of room temperature water, withdraw the contents into the syringe, and administer through the tube ( Table 7 ). Table 7: Dispersion and Rinse Volume for Alternative Administration Administration via Dispersion Volume Container Rinse Volume Oral dispersion 10 mL 10 mL G tube 15 mL 15 mL NG tube or OG tube 30 mL 15 mL 3 DOSAGE FORMS AND STRENGTHS OLUMIANT is available as debossed, film-coated tablets: 1 mg tablet contains a recessed area on each face of the tablet surface, is very light pink, round, debossed with “Lilly” on one side and “1” on the other. 2 mg tablet contains a recessed area on each face of the tablet surface, is light pink, oblong, debossed with “Lilly” on one side and “2” on the other. 4 mg tablet contains a recessed area on each face of the tablet surface, is medium pink, round, debossed with “Lilly” on one side and “4” on the other. Tablets: 4 mg, 2 mg, 1 mg

Hypersensitivity : Serious reactions have been reported. Discontinue OLUMIANT if a serious hypersensitivity reaction occurs. Gastrointestinal Perforations : Monitor patients who may be at increased risk and evaluate promptly new onset of abdominal symptoms. Laboratory Abnormalities : Monitor for changes in lymphocytes, neutrophils, hemoglobin, liver enzymes, and lipids. Vaccinations : Avoid use with live vaccines. 5.1 Serious Infections Serious and sometimes fatal infections due to bacterial, mycobacterial, invasive fungal, viral, or other opportunistic pathogens have been reported in patients with rheumatoid arthritis receiving OLUMIANT. The most common serious infections reported with OLUMIANT included pneumonia, herpes zoster, and urinary tract infection . Among opportunistic infections, tuberculosis, multidermatomal herpes zoster, esophageal candidiasis, pneumocystosis, acute histoplasmosis, cryptococcosis, cytomegalovirus, and BK virus were reported with OLUMIANT. Some patients have presented with disseminated rather than localized disease, and were often taking concomitant immunosuppressants such as methotrexate or corticosteroids. Avoid use of OLUMIANT in patients with an active, serious infection, including localized infections. Consider the risks and benefits of treatment prior to initiating OLUMIANT in patients: with chronic or recurrent infection who have been exposed to tuberculosis with a history of a serious or an opportunistic infection who have resided or traveled in areas of endemic tuberculosis or endemic mycoses; or with underlying conditions that may predispose them to infection. In patients with rheumatoid arthritis or alopecia areata, closely monitor for the development of signs and symptoms of infection during and after treatment with OLUMIANT. Interrupt OLUMIANT in patients with rheumatoid arthritis or alopecia areata, if the patient develops a serious infection, an opportunistic infection, or sepsis. A patient who develops a new infection during treatment with OLUMIANT should undergo prompt and complete diagnostic testing appropriate for an immunocompromised patient; appropriate antimicrobial therapy should be initiated, the patient should be closely monitored, and OLUMIANT should be interrupted if the patient is not responding to therapy. Do not resume OLUMIANT until the infection is controlled. In patients with COVID-19, monitor for signs and symptoms of new infections during and after treatment with OLUMIANT. There is limited information regarding the use of OLUMIANT in patients with COVID-19 and concomitant active serious infections. The risks and benefits of treatment with OLUMIANT in COVID-19 patients with other concurrent infections should be considered. Tuberculosis Evaluate patients for active infection prior to administration of OLUMIANT. OLUMIANT should not be given to patients with active TB. Test patients with rheumatoid arthritis or alopecia areata for latent tuberculosis. Patients with rheumatoid arthritis or alopecia areata and latent tuberculosis (TB) should be treated with standard antimycobacterial therapy before initiating OLUMIANT. Consider anti-TB therapy prior to initiation of OLUMIANT in patients with a history of latent or active TB in whom an adequate course of treatment cannot be confirmed, and for patients with a negative test for latent TB but who have risk factors for TB infection. Consultation with a physician with expertise in the treatment of TB is recommended to aid in the decision about whether initiating anti-TB therapy is appropriate for an individual patient. During OLUMIANT use, monitor patients for the development of signs and symptoms of TB, including patients who tested negative for latent TB infection prior to initiating therapy. Viral Reactivation Viral reactivation, including cases of herpes virus reactivation (e.g., herpes zoster), were reported in clinical studies with OLUMIANT. If a patient develops herpes zoster, interrupt OLUMIANT treatment until the episode resolves. The impact of OLUMIANT on chronic viral hepatitis reactivation is unknown. Patients with evidence of active hepatitis B or C infection were excluded from clinical trials. In clinical trials in patients with rheumatoid arthritis or alopecia areata, patients who were positive for hepatitis C antibody but negative for hepatitis C virus RNA were permitted to enroll. Patients with positive hepatitis B surface antibody and hepatitis B core antibody, without hepatitis B surface antigen, were permitted to enroll; such patients should be monitored for expression of hepatitis B virus (HBV) DNA. Should HBV DNA be detected, consult with a hepatologist. Perform screening for viral hepatitis in accordance with clinical guidelines before starting therapy with OLUMIANT

Mortality In a large, randomized, postmarketing safety study of another JAK inhibitor in RA patients 50 years of age and older with at least one cardiovascular risk factor, a higher rate of all-cause mortality, including sudden cardiovascular death, was observed in patients treated with the JAK inhibitor compared with TNF blockers. Consider the benefits and risks for the individual patient prior to initiating or continuing therapy with OLUMIANT

Malignancy and Lymphoproliferative Disorders Malignancies were observed in clinical studies of OLUMIANT . In a large, randomized, postmarketing safety study of another JAK inhibitor in RA patients, a higher rate of malignancies (excluding non-melanoma skin cancer (NMSC)) was observed in patients treated with the JAK inhibitor compared to those treated with TNF blockers. A higher rate of lymphomas was observed in patients treated with the JAK inhibitor compared to those treated with TNF blockers. A higher rate of lung cancers was observed in current or past smokers treated with the JAK inhibitor compared to those treated with TNF blockers. In this study, current or past smokers had an additional increased risk of overall malignancies. Consider the benefits and risks for the individual patient prior to initiating or continuing therapy with OLUMIANT, particularly in patients with a known malignancy (other than successfully treated NMSC), patients who develop a malignancy, and patients who are current or past smokers. Non-melanoma skin cancers Non-melanoma skin cancers (NMSCs) have been reported in patients treated with OLUMIANT. Periodic skin examination is recommended for patients who are at increased risk for skin cancer

Major Adverse Cardiovascular Events In a large, randomized, postmarketing safety study of another JAK inhibitor in RA patients 50 years of age and older with at least one cardiovascular risk factor, a higher rate of major adverse cardiovascular events (MACE) defined as cardiovascular death, non-fatal myocardial infarction (MI), and non-fatal stroke was observed with the JAK inhibitor compared to those treated with TNF blockers. Patients who are current or past smokers are at additional increased risk. Consider the benefits and risks for the individual patient prior to initiating or continuing therapy with OLUMIANT, particularly in patients who are current or past smokers and patients with other cardiovascular risk factors. Patients should be informed about the symptoms of serious cardiovascular events and the steps to take if they occur. Discontinue OLUMIANT in patients that have experienced a myocardial infarction or stroke

Thrombosis Thrombosis, including deep venous thrombosis (DVT) and pulmonary embolism (PE), has been observed at an increased incidence in patients treated with OLUMIANT compared to placebo. In addition, arterial thrombosis events in the extremities have been reported in clinical studies with OLUMIANT. Many of these adverse events were serious and some resulted in death. There was no clear relationship between platelet count elevations and thrombotic events. In a large, randomized, postmarketing safety study of another JAK inhibitor in RA patients 50 years of age and older with at least one cardiovascular risk factor, higher rates of overall thrombosis, DVT, and PE were observed compared to those treated with TNF blockers. If clinical features of DVT/PE or arterial thrombosis occur, patients should discontinue OLUMIANT and be evaluated promptly and treated appropriately. Avoid OLUMIANT in patients that may be at increased risk of thrombosis

Hypersensitivity Reactions such as angioedema, urticaria, and rash that may reflect drug hypersensitivity have been observed in patients receiving OLUMIANT, including serious reactions. If a serious hypersensitivity reaction occurs, promptly discontinue OLUMIANT while evaluating the potential causes of the reaction

Gastrointestinal Perforations Gastrointestinal perforations have been reported in clinical studies with OLUMIANT. Monitor OLUMIANT-treated patients who may be at increased risk for gastrointestinal perforation (e.g., patients with a history of diverticulitis). Evaluate promptly patients presenting with new onset abdominal symptoms for early identification of gastrointestinal perforation

Laboratory Abnormalities Neutropenia – Treatment with OLUMIANT was associated with an increased incidence of neutropenia (ANC less than 1000 cells/mm 3 ) compared to placebo. In patients with rheumatoid arthritis or alopecia areata, avoid initiation or interrupt OLUMIANT treatment in patients with an ANC less than 1000 cells/mm 3 . In patients with COVID-19, there is limited information regarding use of OLUMIANT in patients with ANC less than 1000 cells/mm 3 . Avoid initiation or interrupt OLUMIANT treatment in patients with COVID-19 and an ANC less than 500 cells/mm 3 . Evaluate at baseline and thereafter according to routine patient management. Adjust dosing based on ANC . Lymphopenia – ALC less than 500 cells/mm 3 were reported in OLUMIANT clinical trials. Lymphocyte counts less than the lower limit of normal were associated with infection in patients treated with OLUMIANT, but not placebo. In patients with rheumatoid arthritis or alopecia areata, avoid initiation or interrupt OLUMIANT treatment in patients with an ALC less than 500 cells/mm 3 . In patients with COVID-19, there is limited information regarding use of OLUMIANT in patients with ALC less than 200 cells/mm 3 . Avoid initiation or interrupt OLUMIANT treatment in patients with COVID-19 and an ALC less than 200 cells/mm 3 . Evaluate at baseline and thereafter according to routine patient management. Adjust dosing based on ALC . Anemia – Decreases in hemoglobin levels to less than 8 g/dL were reported in OLUMIANT clinical trials. In patients with rheumatoid arthritis or alopecia areata, avoid initiation or interrupt OLUMIANT treatment in patients with hemoglobin less than 8 g/dL. Evaluate at baseline and thereafter according to routine patient management. Adjust dosing based on hemoglobin levels . In patients with COVID-19, there is limited information regarding use of OLUMIANT in patients with hemoglobin less than 8 g/dL. Liver Enzyme Elevations – Treatment with OLUMIANT was associated with increased incidence of liver enzyme elevation compared to placebo. Increases of ALT ≥5 times the upper limit of normal (ULN) and increases of AST ≥10 times the ULN were observed in patients in OLUMIANT clinical trials. Evaluate at baseline and thereafter according to routine patient management. Prompt investigation of the cause of liver enzyme elevation is recommended to identify potential cases of drug-induced liver injury. If increases in ALT or AST are observed and drug-induced liver injury is suspected, interrupt OLUMIANT until this diagnosis is excluded . Lipid Elevations – Treatment with OLUMIANT was associated with increases in lipid parameters, including total cholesterol, low-density lipoprotein (LDL) cholesterol, and high-density lipoprotein (HDL) cholesterol. Assessment of lipid parameters should be performed approximately 12 weeks following OLUMIANT initiation in patients with rheumatoid arthritis or alopecia areata . Manage patients according to clinical guidelines for the management of hyperlipidemia

Vaccinations Avoid use of live vaccines with OLUMIANT. Update immunizations in patients with rheumatoid arthritis or alopecia areata prior to initiating OLUMIANT therapy in agreement with current immunization guidelines.

In patients taking strong Organic Anion Transporter 3 (OAT3) inhibitors (e.g., probenecid) the recommended dosage should be reduced

Strong OAT3 Inhibitors Baricitinib exposure is increased when OLUMIANT is co-administered with strong OAT3 inhibitors (such as probenecid), hence the dosage of baricitinib should be reduced by half the recommended dose

Other JAK Inhibitors or Biologic DMARDs OLUMIANT has not been studied in combination with other JAK inhibitors or with biologic DMARDs .