FDA label 5fc83157-783c-3a8b-e053-2a91aa0af392

Hepatic Failure Rarely, ACE inhibitors have been associated with a syndrome that starts with cholestatic jaundice and progresses to fulminant hepatic necrosis, and (sometimes) death. The mechanism of this syndrome is not understood. Patients receiving ACE inhibitors who develop jaundice or marked elevations of hepatic enzymes should discontinue the ACE inhibitor and receive appropriate medical follow-up.

Fetal/Neonatal Morbidity and Mortality ACE inhibitors can cause fetal and neonatal morbidity and death when administered to pregnant women. Several dozen cases have been reported in the world literature. When pregnancy is detected, ACE inhibitors should be discontinued as soon as possible. In a published retrospective epidemiological study, infants whose mothers had taken an ACE inhibitor during their first trimester of pregnancy appeared to have an increased risk of major congenital malformations compared with infants whose mothers had not undergone first timester exposure to ACE inhibitor drugs. The number of cases of birth defects is small and the findings of this study are not yet been repeated. The use of ACE inhibitors during the second and third trimesters of pregnancy has been associated with fetal and neonatal injury, including hypotension, neonatal skull hypoplasia, anuria, reversible or irreversible renal failure, and death. Oligohydramnios has also been reported, presumably resulting from decreased fetal renal function; oligohydramnios in this setting has been associated with fetal limb contractures, craniofacial deformation, and hypoplastic lung development. Prematurity, intrauterine growth retardation, and patent ductus arteriosus have also been reported, although it is not clear whether these occurrences were due to the ACE-inhibitor exposure. These adverse effects do not appear to have resulted from intrauterine ACE-inhibitor exposure that has been limited to the first trimester. Mothers whose embryos and fetuses are exposed to ACE inhibitors only during the first trimester should be so informed. Nonetheless, when patients become pregnant, physicians should make every effort to discontinue the use of enalapril maleate as soon as possible. Rarely (probably less often than once in every thousand pregnancies), no alternative to ACE inhibitors will be found. In these rare cases, the mothers should be apprised of the potential hazards to their fetuses, and serial ultrasound examinations should be performed to assess the intraamniotic environment. If oligohydramnios is observed, enalapril maleate should be discontinued unless it is considered lifesaving for the mother. Contraction stress testing (CST), a non-stress test (NST), or biophysical profiling (BPP) may be appropriate, depending upon the week of pregnancy. Patients and physicians should be aware, however, that oligohydramnios may not appear until after the fetus has sustained irreversible injury. Infants with histories of in utero exposure to ACE inhibitors should be closely observed for hypotension, oliguria, and hyperkalemia. If oliguria occurs, attention should be directed towards support of blood pressure and renal perfusion. Exchange transfusion or dialysis may be required as means of reversing hypotension and/or substituting for disordered renal function. Enalapril, which crosses the placenta, has been removed from neonatal circulation by peritoneal dialysis with some clinical benefit, and theoretically may be removed by exchange transfusion, although there is no experience with the latter procedure. No teratogenic effects of enalapril were seen in studies of pregnant rats, and rabbits. On a body surface area basis, the doses used were 57 times and 12 times, respectively, the maximum recommended human daily dose (MRHDD).

ADVERSE REACTIONS Enalapril maleate has been evaluated for safety in more than 10,000 patients, including over 1000 patients treated for one year or more. Enalapril maleate has been found to be generally well tolerated in conrolled clinical trials involving 2987 patients. For the most part, adverse experiences were mild and transient in nature. In clinical trials, discontinuation of therapy due to clinical adverse experiences was required in 3.3 percent of patients with hypertension and in 5.7 percent of patients with heart failure. The frequency of adverse experiences was not related to total daily dosage within the usual dosage ranges. In patients with hypertension the overall percentage of patients treated with enalapril maleate reporting adverse experiences was comparable to placebo. HYPERTENSION Adverse experiences occurring in greater than one percent of patients with hypertension treated with enalapril maleate in controlled clinical trials are shown below. In patients treated with enalapril maleate, the maximum duration of therapy was three years; in placebo treated patients the maximum duration of therapy was 12 weeks. Enalapril Maleate (n=2314) Incidence (discontinuation) Placebo (n=230) Incidence Body As A Whole Fatigue 3.0 (<0.1) 2.6 Orthostatic Effets 1.2 (<0.1) 0.0 Asthenia 1.1 (0.1) 0.9 Digestive Diarrhea 1.4 (<0.1) 1.7 Nausea 1.4 (0.2) 1.7 Nervous/Psychiatric Headache 5.2 (0.3) 9.1 Dizziness 4.3 (0.4) 4.3 Respiratory Cough 1.3 (0.1) 0.9 Skin Rash 1.4 (0.4) 0.4 HEART FAILURE Adverse experiences occurring in greater than one percent of patients with heart failure treated with enalapril maleate are shown below. The incidences represent the experiences from both controlled and uncontrolled clinical trials (maximum duration of therapy was approximately one year). In the placebo treated patients, the incidences reported are from the controlled trials (maximum duration of therapy is 12 weeks). The percentage of patients with severe heart failure (NYHA Class IV) was 29 percent and 43 percent for patients treated with enalapril maleate and placebo, respectively. Enalapril Maleate (n=673) Incidence (discontinuation) Placebo (n=339) Incidence Body As A Whole Orthostatic Effects 2.2 (0.1) 0.3 Syncope 2.2 (0.1) 0.9 Chest Pain 2.1 (0.0) 2.1 Fatigue 1.8 (0.0) 1.8 Abdominal Pain 1.6 (0.4) 2.1 Asthenia 1.6 (0.1) 0.3 Cardiovascular Hypotension 6.7 (1.9) 0.6 Orthostatic Hypotension 1.6 (0.1) 0.3 Angina Pectoris 1.5 (0.1) 1.8 Myocardial Infarction 1.2 (0.3) 1.8 Digestive Diarrhea 2.1 (0.1) 1.2 Nausea 1.3 (0.1) 0.6 Vomiting 1.3 (0.0) 0.9 Nervous/Psychiatric Dizziness 7.9(0.6) 0.6 Headache 1.8 (0.1) 0.9 Vertigo 1.6 (0.1) 1.2 Respiratory Cough 2.2 (0.0) 0.6 Bronchitis 1.3 (0.0) 0.9 Dyspnea 1.3 (0.1) 0.4 Pneumonia 1.0 (0.0) 2.4 Skin Rash 1.3 (0.0) 2.4 Urogenital Urinary Tract Infection 1.3 (0.0) 2.4 Other serious clinical adverse experiences occurring since the drug was marketed or adverse experiences occurring in 0.5 to 1.0 percent of patients with hypertension or heart failure in clinical trials are listed below and, within each category, are in order of decreasing severity. Body As A Whole: Anaphylactoid reactions (see WARNINGS, Anaphylactoid and Possibly Related Reactions ). Cardiovascular: Cardiac arrest; myocardial infarction or cerebrovascular accident, possibly secondary to excessive hypotension in high risk patients (see WARNINGS, Hypotension ); pulmonary embolism and infarction; pulmonary edema; rhythm disturbances including atrial tachycardia and bradycardia; atrial fibrillation; palpitation, Raynaud’s phenomenon. Digestive: Ileus, pancreatitis, hepatic failure, hepatitis (hepatocellular [proven on rechallenge] or cholestatic jaundice) (see WARNINGS, Hepatic Failure ), melena, anorexia, dyspepsia, constipation, glossitis, stomatitis, dry mouth. Hematologic: Rare cases of neutropenia, thrombocytopenia and bone marrow depression. Musculoskeletal : Muscle cramps. Nervous/Psychiatric: Depression, confusion, ataxia, somnolence, insomnia, nervousness, peripheral neuropathy (e.g., paresthesia, dysesthesia), dream abnormality. Respiratory: Bronchospasm, rhinorrhea, sore throat and hoarseness, asthma, upper respiratory infection, pulmonary infiltrates, eosinophilic pneumonitis. Skin: Exfoliative dermatitis, toxic epidermal necrolysis, Stevens-Johnson syndrome, pemphigus, herpes zoster, erythema multiforme, urticaria, pruritus, alopecia, flushing, diaphoresis, photosensitivity. Special Senses: Blurred vision, taste alteration, anosmia, tinnitus, conjunctivitis, dry eyes, tearing. Urogenital: Renal failure, oliguria, renal dysfunction (see PRECAUTIONS and DOSAGE AND ADMINISTRATION), flank pain, gynecomastia, impotence. Miscellaneous: A symptom complex has been reported which may include some or all of the following: a positive ANA, an elevated erythrocyte sedimentation rate, arthralgia/arthritis, myalgia/ myositis, fever, serositis, vasculitis, leukocytosis, eosinophilia, photosensitivity, rash and other dermatologic manifestations. Angioedema: Angioedema has been reported in patients receiving enalapril maleate with an incidence higher in black than in non-black patients. Angioedema associated with laryngeal edema may be fatal. If angioedema of the face, extremities, lips, tongue, glottis and/or larynx occurs, treatment with enalapril maleate should be discontinued and appropriate therapy instituted immediately. (See WARNINGS.) Hypotension: In the hypertensive patients, hypotension occurred in 0.9 percent and syncope occurred in 0.5 percent of patients following the initial dose or during extended therapy. Hypotension or syncope was a cause for discontinuation of Therapy in 0.1 percent of hypertensive patients. In heart failure patients, hypotension occurred in 6.7 percent and syncope occured in 2.2 percent of patients. Hypotension or syncope was a cause for discontinuation of therapy in 1.9 percent of patients with heart failure. (See WARNINGS.) Fetal/Neonatal Morbidity and Mortality : See WARNINGS, Fetal/Neonatal Morbidity and Mortality . Cough : See PRECAUTIONS, Cough. Pediatric Patients The adverse experience profile for pediatric patients appears to be similar to that seen in adult patients. Clinical Laboratory Test Findings Serum Electrolytes: Hyperkalemia (see PRECAUTIONS), hyponatremia. Creatinine, Blood Urea Nitrogen: In controlled clinical trials minor increases in blood urea nitrogen and serum creatinine, reversible upon discontinuation of therapy, were observed in about 0.2 percent of patients with essential hypertension treated with enalapril maleate alone. Increases are more likely to occur in patients receiving concomitant diuretics or in patients with renal artery stenosis. (See PRECAUTIONS.) In patients with heart failure who were also receiving diuretics with or without digitalis, increases in blood urea nitrogen or serum creatinine, usually reversible upon discontinuation of enalapril maleate and/or other concomitant diuretic therapy, were observed in about 11 percent of patients. Increases in blood urea nitrogen or creatinine were a cause for discontinuation in 1.2 percent of patients. Hematology: Small decreases in hemoglobin and hematocrit (mean decreases of approximately 0.3 g percent and 1.0 vol percent, respectively) occur frequently in either hypertension or congestive heart failure patients treated with enalapril maleate but are rarely of clinical importance unless another cause of anemia coexists. In clinical trials, less than 0.1 percent of patients discontinued therapy due to anemia. Hemolytic anemia, including cases of hemolysis in patients with G-6-PD deficiency, has been reported; a causal relationship to enalapril cannot be excluded. Liver Function Tests: Elevations of liver enzymes and/or serum bilirubin have occurred (see WARNINGS, Hepatic Failure ).

HYPERTENSION Adverse experiences occurring in greater than one percent of patients with hypertension treated with enalapril maleate in controlled clinical trials are shown below. In patients treated with enalapril maleate, the maximum duration of therapy was three years; in placebo treated patients the maximum duration of therapy was 12 weeks. Enalapril Maleate (n=2314) Incidence (discontinuation) Placebo (n=230) Incidence Body As A Whole Fatigue 3.0 (<0.1) 2.6 Orthostatic Effets 1.2 (<0.1) 0.0 Asthenia 1.1 (0.1) 0.9 Digestive Diarrhea 1.4 (<0.1) 1.7 Nausea 1.4 (0.2) 1.7 Nervous/Psychiatric Headache 5.2 (0.3) 9.1 Dizziness 4.3 (0.4) 4.3 Respiratory Cough 1.3 (0.1) 0.9 Skin Rash 1.4 (0.4) 0.4

HEART FAILURE Adverse experiences occurring in greater than one percent of patients with heart failure treated with enalapril maleate are shown below. The incidences represent the experiences from both controlled and uncontrolled clinical trials (maximum duration of therapy was approximately one year). In the placebo treated patients, the incidences reported are from the controlled trials (maximum duration of therapy is 12 weeks). The percentage of patients with severe heart failure (NYHA Class IV) was 29 percent and 43 percent for patients treated with enalapril maleate and placebo, respectively. Enalapril Maleate (n=673) Incidence (discontinuation) Placebo (n=339) Incidence Body As A Whole Orthostatic Effects 2.2 (0.1) 0.3 Syncope 2.2 (0.1) 0.9 Chest Pain 2.1 (0.0) 2.1 Fatigue 1.8 (0.0) 1.8 Abdominal Pain 1.6 (0.4) 2.1 Asthenia 1.6 (0.1) 0.3 Cardiovascular Hypotension 6.7 (1.9) 0.6 Orthostatic Hypotension 1.6 (0.1) 0.3 Angina Pectoris 1.5 (0.1) 1.8 Myocardial Infarction 1.2 (0.3) 1.8 Digestive Diarrhea 2.1 (0.1) 1.2 Nausea 1.3 (0.1) 0.6 Vomiting 1.3 (0.0) 0.9 Nervous/Psychiatric Dizziness 7.9(0.6) 0.6 Headache 1.8 (0.1) 0.9 Vertigo 1.6 (0.1) 1.2 Respiratory Cough 2.2 (0.0) 0.6 Bronchitis 1.3 (0.0) 0.9 Dyspnea 1.3 (0.1) 0.4 Pneumonia 1.0 (0.0) 2.4 Skin Rash 1.3 (0.0) 2.4 Urogenital Urinary Tract Infection 1.3 (0.0) 2.4 Other serious clinical adverse experiences occurring since the drug was marketed or adverse experiences occurring in 0.5 to 1.0 percent of patients with hypertension or heart failure in clinical trials are listed below and, within each category, are in order of decreasing severity. Body As A Whole: Anaphylactoid reactions (see WARNINGS, Anaphylactoid and Possibly Related Reactions ). Cardiovascular: Cardiac arrest; myocardial infarction or cerebrovascular accident, possibly secondary to excessive hypotension in high risk patients (see WARNINGS, Hypotension ); pulmonary embolism and infarction; pulmonary edema; rhythm disturbances including atrial tachycardia and bradycardia; atrial fibrillation; palpitation, Raynaud’s phenomenon. Digestive: Ileus, pancreatitis, hepatic failure, hepatitis (hepatocellular [proven on rechallenge] or cholestatic jaundice) (see WARNINGS, Hepatic Failure ), melena, anorexia, dyspepsia, constipation, glossitis, stomatitis, dry mouth. Hematologic: Rare cases of neutropenia, thrombocytopenia and bone marrow depression. Musculoskeletal : Muscle cramps. Nervous/Psychiatric: Depression, confusion, ataxia, somnolence, insomnia, nervousness, peripheral neuropathy (e.g., paresthesia, dysesthesia), dream abnormality. Respiratory: Bronchospasm, rhinorrhea, sore throat and hoarseness, asthma, upper respiratory infection, pulmonary infiltrates, eosinophilic pneumonitis. Skin: Exfoliative dermatitis, toxic epidermal necrolysis, Stevens-Johnson syndrome, pemphigus, herpes zoster, erythema multiforme, urticaria, pruritus, alopecia, flushing, diaphoresis, photosensitivity. Special Senses: Blurred vision, taste alteration, anosmia, tinnitus, conjunctivitis, dry eyes, tearing. Urogenital: Renal failure, oliguria, renal dysfunction (see PRECAUTIONS and DOSAGE AND ADMINISTRATION), flank pain, gynecomastia, impotence. Miscellaneous: A symptom complex has been reported which may include some or all of the following: a positive ANA, an elevated erythrocyte sedimentation rate, arthralgia/arthritis, myalgia/ myositis, fever, serositis, vasculitis, leukocytosis, eosinophilia, photosensitivity, rash and other dermatologic manifestations. Angioedema: Angioedema has been reported in patients receiving enalapril maleate with an incidence higher in black than in non-black patients. Angioedema associated with laryngeal edema may be fatal. If angioedema of the face, extremities, lips, tongue, glottis and/or larynx occurs, treatment with enalapril maleate should be discontinued and appropriate therapy instituted immediately. (See WARNINGS.) Hypotension: In the hypertensive patients, hypotension occurred in 0.9 percent and syncope occurred in 0.5 percent of patients following the initial dose or during extended therapy. Hypotension or syncope was a cause for discontinuation of Therapy in 0.1 percent of hypertensive patients. In heart failure patients, hypotension occurred in 6.7 percent and syncope occured in 2.2 percent of patients. Hypotension or syncope was a cause for discontinuation of therapy in 1.9 percent of patients with heart failure. (See WARNINGS.) Fetal/Neonatal Morbidity and Mortality : See WARNINGS, Fetal/Neonatal Morbidity and Mortality . Cough : See PRECAUTIONS, Cough. Pediatric Patients The adverse experience profile for pediatric patients appears to be similar to that seen in adult patients.

Clinical Laboratory Test Findings Serum Electrolytes: Hyperkalemia (see PRECAUTIONS), hyponatremia. Creatinine, Blood Urea Nitrogen: In controlled clinical trials minor increases in blood urea nitrogen and serum creatinine, reversible upon discontinuation of therapy, were observed in about 0.2 percent of patients with essential hypertension treated with enalapril maleate alone. Increases are more likely to occur in patients receiving concomitant diuretics or in patients with renal artery stenosis. (See PRECAUTIONS.) In patients with heart failure who were also receiving diuretics with or without digitalis, increases in blood urea nitrogen or serum creatinine, usually reversible upon discontinuation of enalapril maleate and/or other concomitant diuretic therapy, were observed in about 11 percent of patients. Increases in blood urea nitrogen or creatinine were a cause for discontinuation in 1.2 percent of patients. Hematology: Small decreases in hemoglobin and hematocrit (mean decreases of approximately 0.3 g percent and 1.0 vol percent, respectively) occur frequently in either hypertension or congestive heart failure patients treated with enalapril maleate but are rarely of clinical importance unless another cause of anemia coexists. In clinical trials, less than 0.1 percent of patients discontinued therapy due to anemia. Hemolytic anemia, including cases of hemolysis in patients with G-6-PD deficiency, has been reported; a causal relationship to enalapril cannot be excluded. Liver Function Tests: Elevations of liver enzymes and/or serum bilirubin have occurred (see WARNINGS, Hepatic Failure ).