Meloxicam

12.1 Mechanism of Action Meloxicam has analgesic, anti-inflammatory, and antipyretic properties. The mechanism of action of meloxicam, like that of other NSAIDs, is not completely understood but involves inhibition of cyclooxygenase (COX-1 and COX-2). Meloxicam is a potent inhibitor of prostaglandin synthesis in vitro . Meloxicam concentrations reached during therapy have produced in vivo effects. Prostaglandins sensitize afferent nerves and potentiate the action of bradykinin in inducing pain in animal models. Prostaglandins are mediators of inflammation. Because meloxicam is an inhibitor of prostaglandin synthesis, its mode of action may be due to a decrease of prostaglandins in peripheral tissues.

1 INDICATIONS AND USAGE Meloxicam tablet USP is a non-steroidal anti-inflammatory drug indicated for: Osteoarthritis (OA) ( 1.1 ) Rheumatoid Arthritis (RA) ( 1.2 ) Juvenile Rheumatoid Arthritis (JRA) in patients who weigh ≥60 kg ( 1.3 ) 1.1 Osteoarthritis (OA Meloxicam tablets USP are indicated for relief of the signs and symptoms of osteoarthritis [see Clinical Studies ( 14.1 )] . 1.2 Rheumatoid Arthritis (RA) Meloxicam tablets USP are indicated for relief of the signs and symptoms of rheumatoid arthritis [see Clinical Studies ( 14.1 )] . 1.3 Juvenile Rheumatoid Arthritis (JRA) Pauciarticular and Polyarticular Course Meloxicam tablets USP are indicated for relief of the signs and symptoms of pauciarticular or polyarticular course Juvenile Rheumatoid Arthritis in patients who weigh ≥60 kg [see Dosage and Administration ( 2.4 ) and Clinical Studies ( 14.2 )] .

2 DOSAGE AND ADMINISTRATION Use the lowest effective dosage for the shortest duration consistent with individual patient treatment goals ( 2.1 ) OA ( 2.2 ) and RA (2.3): Starting dose: 7.5 mg once daily Dose may be increased to 15 mg once daily JRA ( 2.4 ): 7.5 mg once daily in children ≥60 kg Meloxicam Tablets are not interchangeable with approved formulations of oral meloxicam even if the total milligram strength is the same ( 2.6 ) 2.1 General Dosing Instructions Carefully consider the potential benefits and risks of meloxicam tablets and other treatment options before deciding to use meloxicam tablets. Use the lowest effective dosage for the shortest duration consistent with individual patient treatment goals [see Warnings and Precautions ( 5 )] . After observing the response to initial therapy with meloxicam tablets, adjust the dose to suit an individual patient's needs. In adults, the maximum recommended daily oral dose of meloxicam tablets is 15 mg regardless of formulation. In patients with hemodialysis, a maximum daily dosage of 7.5 mg is recommended [see Use in Specific Populations ( 8.7 ) and Clinical Pharmacology ( 12.3 )] . Meloxicam tablets may be taken without regard to timing of meals. 2.2 Osteoarthritis For the relief of the signs and symptoms of osteoarthritis the recommended starting and maintenance oral dose of meloxicam tablets is 7.5 mg once daily. Some patients may receive additional benefit by increasing the dose to 15 mg once daily. 2.3 Rheumatoid Arthritis For the relief of the signs and symptoms of rheumatoid arthritis, the recommended starting and maintenance oral dose of meloxicam tablets is 7.5 mg once daily. Some patients may receive additional benefit by increasing the dose to 15 mg once daily. 2.4 Juvenile Rheumatoid Arthritis (JRA) Pauciarticular and Polyarticular Course For the treatment of juvenile rheumatoid arthritis, the recommended oral dose of meloxicam is 7.5 mg once daily in children who weigh ≥60 kg. There was no additional benefit demonstrated by increasing the dose above 7.5 mg in clinical trials. Meloxicam tablets should not be used in children who weigh <60 kg. 2.5 Renal Impairment The use of meloxicam in subjects with severe renal impairment is not recommended. In patients on hemodialysis, the maximum dosage of meloxicam is 7.5 mg per day [see Clinical Pharmacology ( 12.3 )]. 2.6 Non-Interchangeability with Other Formulations of Meloxicam Meloxicam Tablets have not shown equivalent systemic exposure to other approved formulations of oral meloxicam. Therefore, Meloxicam Tablets are not interchangeable with other formulations of oral meloxicam product even if the total milligram strength is the same. Do not substitute similar dose strengths of Meloxicam Tablets with other formulations of oral meloxicam product.

6 ADVERSE REACTIONS Most common (≥5% and greater than placebo) adverse events in adults are diarrhea, upper respiratory tract infections, dyspepsia, and influenza-like symptoms ( 6.1 ) Adverse events observed in pediatric studies were similar in nature to the adult clinical trial experience ( 6.1 ) To report SUSPECTED ADVERSE REACTIONS, contact Lupin Pharmaceuticals, Inc. at 1-800-399-2561 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch. The following adverse reactions are discussed in greater detail in other sections of the labeling: Cardiovascular Thrombotic Events [see Boxed Warning and Warnings and Precautions ( 5.1 ) ] GI Bleeding, Ulceration, and Perforation [see Boxed Warning and Warnings and Precautions ( 5.2 ) ] Hepatotoxicity [see Warnings and Precautions ( 5.3 ) ] Hypertension [see Warnings and Precautions ( 5.4 ) ] Heart Failure and Edema [see Warnings and Precautions ( 5.5 ) ] Renal Toxicity and Hyperkalemia [see Warnings and Precautions ( 5.6 ) ] Anaphylactic Reactions [see Warnings and Precautions ( 5.7 ) ] Serious Skin Reactions [see Warnings and Precautions ( 5.9 ) ] Drug Reaction with Eosinophilia and Systemic Symptoms (DRESS) [ see Warnings and Precautions ( 5.10 ) ] Fetal Toxicity [see Warnings and Precautions ( 5.11 )] Hematologic Toxicity [see Warnings and Precautions ( 5.12 ) ] 6.1 Clinical Trials Experience Because clinical trials are conducted under widely varying conditions, adverse reaction rates observed in the clinical trials of a drug cannot be directly compared to rates in the clinical trials of another drug and may not reflect the rates observed in practice. Adults Osteoarthritis and Rheumatoid Arthritis: The meloxicam Phase 2/3 clinical trial database includes 10,122 OA patients and 1012 RA patients treated with meloxicam 7.5 mg/day, 3505 OA patients and 1351 RA patients treated with meloxicam 15 mg/day. Meloxicam at these doses was administered to 661 patients for at least 6 months and to 312 patients for at least one year. Approximately 10,500 of these patients were treated in ten placebo- and/or active-controlled osteoarthritis trials and 2363 of these patients were treated in ten placebo- and/or active-controlled rheumatoid arthritis trials. Gastrointestinal (GI) adverse events were the most frequently reported adverse events in all treatment groups across meloxicam trials. A 12-week multicenter, double-blind, randomized trial was conducted in patients with osteoarthritis of the knee or hip to compare the efficacy and safety of meloxicam with placebo and with an active control. Two 12-week multicenter, double-blind, randomized trials were conducted in patients with rheumatoid arthritis to compare the efficacy and safety of meloxicam with placebo. Table 1a depicts adverse events that occurred in ≥2% of the meloxicam treatment groups in a 12-week placebo- and active-controlled osteoarthritis trial. Table 1b depicts adverse events that occurred in ≥2% of the meloxicam treatment groups in two 12-week placebo-controlled rheumatoid arthritis trials. Table 1a Adverse Events (%) Occurring in ≥2% of Meloxicam Patients in a 12-Week Osteoarthritis Placebo- and Active-Controlled Trial Placebo Meloxicam 7 . 5 mg daily Meloxicam 15 mg daily Diclofenac 100 mg daily No . of Patients 157 154 156 153 Gastrointestinal 17.2 20.1 17.3 28.1 Abdominal pain 2.5 1.9 2.6 1.3 Diarrhea 3.8 7.8 3.2 9.2 Dyspepsia 4.5 4.5 4.5 6.5 Flatulence 4.5 3.2 3.2 3.9 Nausea 3.2 3.9 3.8 7.2 Body as a Whole Accident household 1.9 4.5 3.2 2.6 Edema WHO preferred terms edema, edema dependent, edema peripheral, and edema legs combined 2.5 1.9 4.5 3.3 Fall 0.6 2.6 0.0 1.3 Influenza-like symptoms 5.1 4.5 5.8 2.6 Central and Peripheral Nervous System Dizziness 3.2 2.6 3.8 2.0 Headache 10.2 7.8 8.3 5.9 Respiratory Pharyngitis 1.3 0.6 3.2 1.3 Upper respiratory tract infection 1.9 3.2 1.9 3.3 Skin Rash WHO preferred terms rash, rash erythematous, and rash maculo-papular combined 2.5 2.6 0.6 2.0 Table 1b Adverse Events (%) Occurring in ≥2% of Meloxicam Patients in two 12-Week Rheumatoid Arthritis Placebo-Controlled Trials Placebo Meloxicam 7 . 5 mg daily Meloxicam 15 mg daily No . of Patients 469 481 477 Gastrointestinal Disorders 14.1 18.9 16.8 Abdominal pain NOS MedDRA preferred term: nausea, abdominal pain NOS, influenza-like illness, headaches NOS, and rash NOS 0.6 2.9 2.3 Dyspeptic signs and symptoms MedDRA high level term (preferred terms): dyspeptic signs and symptoms (dyspepsia, dyspepsia aggravated, eructation, gastrointestinal irritation), upper respiratory tract infections-pathogen unspecified (laryngitis NOS, pharyngitis NOS, sinusitis NOS), joint related signs and symptoms (arthralgia, arthralgia aggravated, joint crepitation, joint effusion, joint swelling) 3.8 5.8 4.0 Nausea 2.6 3.3 3.8 General Disorders and Administration Site Conditions Influenza-like illness 2.1 2.9 2.3 Infection and Infestations Upper respiratory tract infections-pathogen class unspecified 4.1 7.0 6.5 Musculoskeletal and Connective Tissu

7 DRUG INTERACTIONS See Table 3 for clinically significant drug interactions with meloxicam. See also Warnings and Precautions ( 5.2 , 5.6 , 5.12 ) and Clinical Pharmacology ( 12.3 ) . Drugs that Interfere with Hemostasis Clinical Impact: Meloxicam and anticoagulants such as warfarin have a synergistic effect on bleeding. The concomitant use of meloxicam and anticoagulants have an increased risk of serious bleeding compared to the use of either drug alone. Serotonin release by platelets plays an important role in hemostasis. Case-control and cohort epidemiological studies showed that concomitant use of drugs that interfere with serotonin reuptake and an NSAID may potentiate the risk of bleeding more than an NSAID alone. Intervention: Monitor patients with concomitant use of meloxicam with anticoagulants (e.g., warfarin), antiplatelet agents (e.g., aspirin), selective serotonin reuptake inhibitors (SSRIs), and serotonin norepinephrine reuptake inhibitors (SNRIs) for signs of bleeding [see Warnings and Precautions ( 5.12 )]. Aspirin Clinical Impact: Controlled clinical studies showed that the concomitant use of NSAIDs and analgesic doses of aspirin does not produce any greater therapeutic effect than the use of NSAIDs alone. In a clinical study, the concomitant use of an NSAID and aspirin was associated with a significantly increased incidence of GI adverse reactions as compared to use of the NSAID alone [see Warnings and Precautions ( 5.2 )]. Intervention: Concomitant use of meloxicam and low dose aspirin or analgesic doses of aspirin is not generally recommended because of the increased risk of bleeding [see Warnings and Precautions ( 5.12 )]. Meloxicam is not a substitute for low dose aspirin for cardiovascular protection. ACE Inhibitors, Angiotensin Receptor Blockers, or Beta-Blockers Clinical Impact: NSAIDs may diminish the antihypertensive effect of angiotensin converting enzyme (ACE) inhibitors, angiotensin receptor blockers (ARBs), or beta-blockers (including propranolol). In patients who are elderly, volume-depleted (including those on diuretic therapy), or have renal impairment, co-administration of an NSAID with ACE inhibitors or ARBs may result in deterioration of renal function, including possible acute renal failure. These effects are usually reversible. Intervention: During concomitant use of meloxicam and ACE inhibitors, ARBs, or beta-blockers, monitor blood pressure to ensure that the desired blood pressure is obtained. During concomitant use of meloxicam and ACE inhibitors or ARBs in patients who are elderly, volume-depleted, or have impaired renal function, monitor for signs of worsening renal function [see Warnings and Precautions ( 5.6 )]. When these drugs are administered concomitantly, patients should be adequately hydrated. Assess renal function at the beginning of the concomitant treatment and periodically thereafter. Diuretics Clinical Impact: Clinical studies, as well as post-marketing observations, showed that NSAIDs reduced the natriuretic effect of loop diuretics (e.g., furosemide) and thiazide diuretics in some patients. This effect has been attributed to the NSAID inhibition of renal prostaglandin synthesis. However, studies with furosemide agents and meloxicam have not demonstrated a reduction in natriuretic effect. Furosemide single and multiple dose pharmacodynamics and pharmacokinetics are not affected by multiple doses of meloxicam. Intervention: During concomitant use of meloxicam with diuretics, observe patients for signs of worsening renal function, in addition to assuring diuretic efficacy including antihypertensive effects [see Warnings and Precautions ( 5.6 )]. Lithium Clinical Impact: NSAIDs have produced elevations in plasma lithium levels and reductions in renal lithium clearance. The mean minimum lithium concentration increased 15%, and the renal clearance decreased by approximately 20%. This effect has been attributed to NSAID inhibition of renal prostaglandin synthesis [see Clinical Pharmacology ( 12.3 )]. Intervention: During concomitant use of meloxicam and lithium, monitor patients for signs of lithium toxicity. Methotrexate Clinical Impact: Concomitant use of NSAIDs and methotrexate may increase the risk for methotrexate toxicity (e.g., neutropenia, thrombocytopenia, renal dysfunction). Intervention: During concomitant use of meloxicam and methotrexate, monitor patients for methotrexate toxicity. Cyclosporine Clinical Impact: Concomitant use of meloxicam and cyclosporine may increase cyclosporine's nephrotoxicity. Intervention: During concomitant use of meloxicam and cyclosporine, monitor patients for signs of worsening renal function. NSAIDs and Salicylates Clinical Impact: Concomitant use of meloxicam with other NSAIDs or salicylates (e.g., diflunisal, salsalate) increases the risk of GI toxicity, with little or no increase in efficacy [see Warnings and Precautions ( 5.2 )]. Intervention: The concomitant use of meloxicam with other NSAIDs or salicylates i