Linked Life Data

Aminocaproic Acid (Syrup)

Source:http://www4.wiwiss.fu-berlin.de/dailymed/resource/drugs/194

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Aminocaproic Acid (Syrup)
dailymed-instance:dosage
For the treatment of acute bleeding syndromes due to elevated fibrolytic activity, it is suggested that 4 teaspoonfuls (5 g) of aminocaproic acid oral solution be administered during the first hour of treatment, followed by a continuing rate of 1 teaspoonful (1.25 g) of syrup per hour. This method of treatment would ordinarily be continued for about 8 hours or until the bleeding situation has been controlled.
dailymed-instance:descripti...
Aminocaproic acid USP is 6-aminohexanoic acid, which acts as an inhibitor of fibrinolysis. Its structural formula is: CHNOM.W. 131.17 Aminocaproic acid is soluble in water, acids, and alkalies; it is sparingly soluble in methanol and practically insoluble in chloroform. Each 5 mL for oral administration contains 1.25 g of aminocaproic acid and the following inactive ingredients: citric acid (anhydrous), methylparaben, propylene glycol, propylparaben, purified water, saccharin sodium, sorbitol solution and natural and artificial flavor. The pH range of Aminocaproic Acid Oral Solution USP is between 6.1 and 6.6.
dailymed-instance:clinicalP...
The fibrinolysis-inhibitory effects of aminocaproic acid appear to be exerted principally via inhibition of plasminogen activators and to a lesser degree through antiplasmin activity. In adults, oral absorption appears to be a zero-order process with an absorption rate of 5.2 g/hr. The mean lag time in absorption is 10 minutes. After a single oral dose of 5 g, absorption was complete (F=1). Mean��SD peak plasma concentrations (164��28 mcg/mL) were reached within 1.2��0.45 hours. After oral administration, the apparent volume of distribution was estimated to be 23.1��6.6 L (mean��SD). Correspondingly, the volume of distribution after intravenous administration has been reported to be 30.0��8.2 L. After prolonged administration, aminocaproic acid has been found to distribute throughout extravascular and intravascular compartments of the body, penetrating human red blood cells as well as other tissue cells. Renal excretion is the primary route of elimination, whether aminocaproic acid is administered orally or intravenously. 65% of the dose is recovered in the urine as unchanged drug and 11% of the dose appears as the metabolite adipic acid. Renal clearance (116 mL/min) approximates endogenous creatinine clearance. The total body clearance is 169 mL/min. The terminal elimination halflife for aminocaproic acid is approximately 2 hours.
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Aminocaproic acid should not be used when there is evidence of an active intravascular clotting process. When there is uncertainty as to whether the cause of bleeding is primary fibrinolysis or disseminated intravascular coagulation (DIC), this distinction must be made before administering aminocaproic acid. The following tests can be applied to differentiate the two conditions: Aminocaproic acid must not be used in the presence of DIC without concomitant heparin.
dailymed-instance:supply
Aminocaproic Acid Oral Solution USP, which contains aminocaproic acid 1.25 g/5 mL, is supplied as a clear, raspberry-flavored syrup in bottles of 8 fl oz (237 mL), NDC 61748-044-08 and 16 fl oz (473 mL), NDC 61748-044-16. Store at controlled room temperature, 15��C to 30��C (59��F to 86��F)(see USP). DO NOT FREEZE. Dispense in a tight container with a child-resistant closure.
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General: Aminocaproic acid inhibits both the action of plasminogen activators and, to a lesser degree, plasmin activity. The drug should NOT be administered without a definite diagnosis and/or laboratory finding indicative of hyperfibrinolysis (hyperplasminemia).* Inhibition of fibrinolysis by aminocaproic acid may theoretically result in clotting or thrombosis. However, there is no definite evidence that administration of aminocaproic acid has been responsible for the few reported cases of intravascular clotting which followed this treatment. Rather, it appears that such intravascular clotting was most likely due to the patient's preexisting clinical condition, e.g., the presence of DIC. It has been postulated that extravascular clots formed in vivo may not undergo spontaneous lysisas do normal clots. Reports have appeared in the literature of an increased incidence of certain neurological deficits such as hydrocephalus, cerebral ischemia, or cerebral vasospasm associated with the use of antifibrinolytic agents in the treatment of subarachnoid hemorrhage (SAH). All of these events have also been described as part of the natural course of SAH, or as a consequence of diagnostic procedures such as angiography. Drug relatedness remains unclear. Thrombosis with severe sequelae (acute myocardial infarction, gangrene) has been rarely reported in patients with hemophilia receiving combined treatment with Factor IX concentrate and aminocaproic acid. Aminocaproic acid should not be administered concomitantly with prothrombin complex concentrates or with activated prothrombin concentrates unless the increased risk of thrombosis is outweighed by the anticipated clinical benefit.<br/>Laboratory Tests: The use of aminocaproic acid should be accompanied by tests designed to determine the amount of fibrinolysis present. There are presently available (a) general tests such as those for the determination of the lysis of a clot of blood or plasma and (b) more specific tests for the study of various phases of the fibrinolytic mechanisms. These latter tests include both semiquantitative and quantitative techniques for the determination of profibrinolysin, fibrinolysin, and antifibrinolysin.<br/>Drug/Laboratory Test Interactions: Prolongation of the template bleeding time has been reported during continuous intravenous infusion of aminocaproic acid at dosages exceeding 24 g/day. Platelet function studies in these patients have not demonstrated any significant platelet dysfunction. However, in vitro studies have shown that at high concentrations (7.4 mMol/L or 0.97 mg/mL and greater) EACA inhibits ADP and collagen-induced platelet aggregation, the release of ATP and serotonin, and the binding of fibrinogen to the platelets in a concentration response manner. Following a 10 g bolus of aminocaproic acid injection, transient peak plasma concentrations of 4.6 mMol/L or 0.60 mg/mL have been obtained. The concentration of aminocaproic acid necessary to maintain inhibition of fibrinolysis is 0.99 mMol/L or 0.13 mg/mL. Administration of a 5 g bolus followed by 1 to 1.25 g/hr should achieve and sustain plasma levels of 0.13 mg/mL. Thus, concentrations which have been obtained in vivo clinically in patients with normal renal function are considerably lower than the in vitro concentrations found to induce abnormalities in platelet function tests. However, higher plasma concentrations of aminocaproic acid may occur in patients with severe renal failure.<br/>Carcinogenesis, Mutagenesis, Impairment of Fertility: Long-term studies in animals to evaluate the carcinogenic potential of aminocaproic acid and studies to evaluate its mutagenic potential have not been conducted. Dietary administration of an equivalent of the maximum human therapeutic dose of aminocaproic acid to rats of both sexes impaired fertility as evidenced by decreased implantations, litter sizes and number of pups born.<br/>Pregnancy:<br/>Teratogenic Effects: Pregnancy Category C.: Animal teratological studies have not been conducted with aminocaproic acid. It is also not known whether aminocaproic acid can cause fetal harm when administered to a pregnant woman or can affect reproduction capacity. Aminocaproic acid should be given to a pregnant woman only if clearly needed.<br/>Nursing Mothers: It is not known whether this drug is excreted in human milk. Because many drugs are excreted in human milk, caution should be exercised when aminocaproic acid is administered to a nursing woman.<br/>Pediatric Use: Safety and effectiveness in pediatric patients have not been established.
dailymed-instance:overdosag...
A few cases of acute overdosage with aminocaproic acid administered intravenously have been reported. The effects ranged from no reaction to transient hypotension to severe acute renal failure leading to death. One patient with a history of brain tumor and seizures experienced seizures after receiving an 8 gram bolus injection of aminocaproic acid. The single dose of aminocaproic acid causing symptoms of overdosage or considered to be life-threatening is unknown. Patients have tolerated doses as high as 100 grams while acute renal failure has been reported following a dose of 12 grams. The intravenous and oral LDof aminocaproic acid were 3 and 12 g/kg respectively in the mouse and 3.2 and 16.4 g/kg respectively in the rat. An intravenous infusion dose of 2.3 g/kg was lethal in the dog. On intravenous administration, tonic-clonic convulsions were observed in dogs and mice. No treatment for overdosage is known, although evidence exists that aminocaproic acid is removed by hemodialysis and may be removed by peritoneal dialysis. Pharmacokinetic studies have shown that total body clearance of aminocaproic acid is markedly decreased in patients with severe renal failure.
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Aminocaproic Acid
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Aminocaproic Acid (Syrup)
dailymed-instance:adverseRe...
Aminocaproic acid is generally well tolerated. The following adverse experiences have been reported: General: Edema, headache, malaise. Hypersensitivity Reactions: Allergic and anaphylactoid reactions, anaphylaxis. Local Reactions: Injection site reactions, pain and necrosis. Cardiovascular: Bradycardia, hypotension, peripheral ischemia, thrombosis. Gastrointestinal: Abdominal pain, diarrhea, nausea, vomiting. Hematologic: Agranulocytosis, coagulation disorder, leukopenia, thrombocytopenia. Musculoskeletal: CPK increased, muscle weakness, myalgia, myopathy , myositis, rhabdomyolysis. Neurologic: Confusion, convulsions, delirium, dizziness, hallucinations, intracranial hypertension, stroke, syncope. Respiratory: Dyspnea, nasal congestion, pulmonary embolism. Skin: Pruritis, rash. Special Senses: Tinnitus, vision decreased, watery eyes. Urogenital: BUN increased, renal failure. There have been some reports of dry ejaculation during the period of aminocaproic acid treatment. These have been reported to date only in hemophilia patients who received the drug after undergoing dental surgical procedures. However, this symptom resolved in all patients within 24 to 48 hours of completion of therapy.<br/>OVERDOSAGE: A few cases of acute overdosage with aminocaproic acid administered intravenously have been reported. The effects ranged from no reaction to transient hypotension to severe acute renal failure leading to death. One patient with a history of brain tumor and seizures experienced seizures after receiving an 8 gram bolus injection of aminocaproic acid. The single dose of aminocaproic acid causing symptoms of overdosage or considered to be life-threatening is unknown. Patients have tolerated doses as high as 100 grams while acute renal failure has been reported following a dose of 12 grams. The intravenous and oral LDof aminocaproic acid were 3 and 12 g/kg respectively in the mouse and 3.2 and 16.4 g/kg respectively in the rat. An intravenous infusion dose of 2.3 g/kg was lethal in the dog. On intravenous administration, tonic-clonic convulsions were observed in dogs and mice. No treatment for overdosage is known, although evidence exists that aminocaproic acid is removed by hemodialysis and may be removed by peritoneal dialysis. Pharmacokinetic studies have shown that total body clearance of aminocaproic acid is markedly decreased in patients with severe renal failure.
dailymed-instance:warning
In patients with upper urinary tract bleeding, aminocaproic acid administration has been known to cause intrarenal obstruction in the form of glomerular capillary thrombosis or clots in the renal pelvis and ureters. For this reason, aminocaproic acid should not be used in hematuria of upper urinary tract origin, unless the possible benefits outweigh the risk. Subendocardial hemorrhages have been observed in dogs given intravenous infusions of 0.2 times the maximum human therapeutic dose of aminocaproic acid and in monkeys given 8 times the maximum human therapeutic dose of aminocaproic acid. Fatty degeneration of the myocardium has been reported in dogs given intravenous doses of aminocaproic acid at 0.8 to 3.3 times the maximum human therapeutic dose and in monkeys given intravenous doses of aminocaproic acid at 6 times the maximum human therapeutic dose. Rarely, skeletal muscle weakness with necrosis of muscle fibers has been reported following prolonged administration. Clinical presentation may range from mild myalgias with weakness and fatigue to a severe proximal myopathy with rhabdomyolysis, myoglobinuria, and acute renal failure. Muscle enzymes, especially creatine phosphokinase (CPK) are elevated. CPK levels should be monitored in patients on long-term therapy. Aminocaproic acid administration should be stopped if a rise in CPK is noted. Resolution follows discontinuation of aminocaproic acid; however, the syndrome may recur if aminocaproic acid is restarted. The possibility of cardiac muscle damage should also be considered when skeletal myopathy occurs. One case of cardiac and hepatic lesions observed in man has been reported. The patient received 2 g of aminocaproic acid every 6 hours for a total dose of 26 g. Death was due to continued cerebrovascular hemorrhage. Necrotic changes in the heart and liver were noted at autopsy.
dailymed-instance:indicatio...
Aminocaproic Acid Oral Solution is useful in enhancing hemostasis when fibrinolysis contributes to bleeding. In life-threatening situations, fresh whole blood transfusions, fibrinogen infusions, and other emergency measures may be required. Fibrinolytic bleeding may frequently be associated with surgical complications following heart surgery (with or without cardiac bypass procedures) and portacaval shunt; hematological disorders such as aplastic anemia, abruptio placentae, hepatic cirrhosis, neoplastic disease such as carcinoma of the prostate, lung, stomach, and cervix. Urinary fibrinolysis, usually a normal physiological phenomenon, may frequently be associated with life-threatening complications following severe trauma, anoxia, and shock. Symptomatic of such complications is surgical hematuria (following prostatectomy and nephrectomy) or nonsurgical hematuria (accompanying polycystic or neoplastic diseases of the genitourinary system). See WARNINGS.
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dailymed-instance:name
Aminocaproic Acid