Cardene I.V. (Esp Pharma)

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DESCRIPTION

Cardene (nicardipine HCl) is a calcium ion influx inhibitor (slow channel blocker or calcium channel blocker). Cardene I.V. for intravenous administration contains 2.5 mg/mL of nicardipine hydrochloride. Nicardipine hydrochloride is a dihydropyridine derivative with IUPAC (International Union of Pure and Applied Chemistry) chemical name (±)-2-(benzyl-methyl amino) ethyl methyl 1,4-dihydro-2,6-dimethyl-4-( m -nitrophenyl)-3,5-pyridinedicarboxylate monohydrochloride and has the following structure:

Nicardipine hydrochloride is a greenish-yellow, odorless, crystalline powder that melts at about 169° C. It is freely soluble in chloroform, methanol, and glacial acetic acid, sparingly soluble in anhydrous ethanol, slightly soluble in n-butanol, water, 0.01 M potassium dihydrogen phosphate, acetone, and dioxane, very slightly soluble in ethyl acetate, and practically insoluble in benzene, ether, and hexane. It has a molecular weight of 515.99.

Cardene I.V. is available as a sterile, non-pyrogenic, clear, yellow solution in 10 mL ampuls for intravenous infusion after dilution. Each mL contains 2.5 mg nicardipine hydrochloride in Water for Injection, USP with 48.00 mg Sorbitol, NF, buffered to pH 3.5 with 0.525 mg citric acid monohydrate, USP and 0.09 mg sodium hydroxide, NF. Additional citric acid and/or sodium hydroxide may have been added to adjust pH.

CLINICAL PHARMACOLOGY

MECHANISM OF ACTION

Nicardipine inhibits the transmembrane influx of calcium ions into cardiac muscle and smooth muscle without changing serum calcium concentrations. The contractile processes of cardiac muscle and vascular smooth muscle are dependent upon the movement of extracellular calcium ions into these cells through specific ion channels. The effects of nicardipine are more selective to vascular smooth muscle than cardiac muscle. In animal models, nicardipine produced relaxation of coronary vascular smooth muscle at drug levels which cause little or no negative inotropic effect.

PHARMACOKINETICS AND METABOLISM

Following infusion, nicardipine plasma concentrations decline tri-exponentially, with a rapid early distribution phase ((alpha)-half-life of 2.7 minutes), an intermediate phase ((beta)-half-life of 44.8 minutes), and a slow terminal phase ((gamma)-half-life of 14.4 hours) that can only be detected after long-term infusions. Total plasma clearance (Cl) is 0.4 L/hr·kg, and the apparent volume of distribution (V _d ) using a non-compartment model is 8.3 L/kg. The pharmacokinetics of Cardene I.V. are linear over the dosage range of 0.5 to 40.0 mg/hr.

Rapid dose-related increases in nicardipine plasma concentrations are seen during the first two hours after the start of an infusion of Cardene I.V. Plasma concentrations increase at a much slower rate after the first few hours, and approach steady state at 24 to 48 hours. On termination of the infusion, nicardipine concentrations decrease rapidly, with at least a 50% decrease during the first two hours post-infusion. The effects of nicardipine on blood pressure significantly correlate with plasma concentrations.

Nicardipine is highly protein bound (>95%) in human plasma over a wide concentration range.

Cardene I.V. has been shown to be rapidly and extensively metabolized by the liver. After coadministration of a radioactive intravenous dose of Cardene I.V. with an oral 30 mg dose given every 8 hours, 49% of the radioactivity was recovered in the urine and 43% in the feces within 96 hours. None of the dose was recovered as unchanged nicardipine.

Nicardipine does not induce or inhibit its own metabolism and does not induce or inhibit hepatic microsomal enzymes.

The steady-state pharmacokinetics of nicardipine are similar in elderly hypertensive patients (>65 years) and young healthy adults.

HEMODYNAMICS

Cardene I.V. produces significant decreases in systemic vascular resistance. In a study of intra-arterially administered Cardene I.V., the degree of vasodilation and the resultant decrease in blood pressure were more prominent in hypertensive patients than in normotensive volunteers. Administration of Cardene I.V. to normotensive volunteers at dosages of 0.25 to 3.0 mg/hr for eight hours produced changes of <5 mmHg in systolic blood pressure and <3 mmHg in diastolic blood pressure.

An increase in heart rate is a normal response to vasodilation and decrease in blood pressure; in some patients these increases in heart rate may be pronounced. In placebo-controlled trials, the mean increases in heart rate were 7 ± 1 bpm in postoperative patients and 8 ± 1 bpm in patients with severe hypertension at the end of the maintenance period.

Hemodynamic studies following intravenous dosing in patients with coronary artery disease and normal or moderately abnormal left ventricular function have shown significant increases in ejection fraction and cardiac output with no significant change, or a small decrease, in left ventricular end-diastolic pressure (LVEDP). There is evidence that Cardene increases blood flow. Coronary dilatation induced by Cardene I.V. improves perfusion and aerobic metabolism in areas with chronic ischemia, resulting in reduced lactate production and augmented oxygen consumption. In patients with coronary artery disease, Cardene I.V., administered after beta-blockade, significantly improved systolic and diastolic left ventricular function.

In congestive heart failure patients with impaired left ventricular function, Cardene I.V. increased cardiac output both at rest and during exercise. Decreases in left ventricular end-diastolic pressure were also observed. However, in some patients with severe left ventricular dysfunction, it may have a negative inotropic effect and could lead to worsened failure.

"Coronary steal" has not been observed during treatment with Cardene I.V. (Coronary steal is the detrimental redistribution of coronary blood flow in patients with coronary artery disease from underperfused areas toward better perfused areas.) Cardene I.V. has been shown to improve systolic shortening in both normal and hypokinetic segments of myocardial muscle. Radionuclide angiography has confirmed that wall motion remained improved during increased oxygen demand. (Occasional patients have developed increased angina upon receiving Cardene capsules. Whether this represents coronary steal in these patients, or is the result of increased heart rate and decreased diastolic pressure, is not clear.)

In patients with coronary artery disease, Cardene I.V. improves left ventricular diastolic distensibility during the early filing phase, probably due to a faster rate of myocardial relaxation in previously underperfused areas. There is little or no effect on normal myocardium, suggesting the improvement is mainly by indirect mechanisms such as afterload reduction and reduced ischemia. Cardene I.V. has no negative effect on myocardial relaxation at therapeutic doses. The clinical benefits of these properties have not yet been demonstrated.

ELECTROPHYSIOLOGIC EFFECTS

In general, no detrimental effects on the cardiac conduction system have been seen with Cardene I.V. During acute electrophysiologic studies, it increased heart rate and prolonged the corrected QT interval to a minor degree. It did not affect sinus node recovery or SA conduction times. The PA, AH, and HV intervals * or the function and effective refractory periods of the atrium were not prolonged. The relative and effective refractory periods of the His-Purkinje system were slightly shortened.

HEPATIC FUNCTION

Because nicardipine is extensively metabolized by the liver, plasma concentrations are influenced by changes in hepatic function. In a clinical study with Cardene capsules in patients with severe liver disease, plasma concentrations were elevated and the half-life was prolonged (see " PRECAUTIONS "). Similar results were obtained in patients with hepatic disease when Cardene I.V. (nicardipine hydrochloride) was adminstered for 24 hours at 0.6 mg/hr.

RENAL FUNCTION

When Cardene I.V. was given to mild to moderate hypertensive patients with moderate degrees of renal impairment, significant reduction in glomerular filtration rate (GFR) and effective renal plasma flow (RPF) was observed. No significant differences in liver blood flow were observed in these patients. A significantly lower systemic clearance and higher area under the curve (AUC) were observed.

When Cardene capsules (20 mg or 30 mg TID) were given to hypertensive patients with impaired renal function, mean plasma concentrations, AUC, and C _max were approximately two-fold higher than in healthy controls. There is a transient increase in electrolyte excretion, including sodium (see " PRECAUTIONS ").

Acute bolus administration of Cardene I.V. (2.5 mg) in healthy volunteers decreased mean arterial pressure and renal vascular resistance; glomerular filtration rate (GFR), renal plasma flow (RPF), and the filtration fraction were unchanged. In healthy patients undergoing abdominal surgery, Cardene I.V. (10 mg over 20 minutes) increased GFR with no change in RPF when compared with placebo. In hypertensive type II diabetic patients with nephropathy, Cardene capsules (20 mg TID) did not change RPF and GFR, but reduced renal vascular resistance.

PULMONARY FUNCTION

In two well-controlled studies of patients with obstructive airway disease treated with Cardene capsules, no evidence of increased bronchospasm was seen. In one of the studies, Cardene capsules improved forced expiratory volume 1 second (FEV ₁ ) and forced vital capacity (FVC) in comparison with metoprolol. Adverse experiences reported in a limited number of patients with asthma, reactive airway disease, or obstructive airway disease are similar to all patients treated with Cardene capsules.

EFFECTS IN HYPERTENSION

In patients with mild to moderate chronic stable essential hypertension, Cardene I.V. (0.5 to 4.0 mg/hr) produced dose-dependent decreases in blood pressure, although only the decreases at 4.0 mg/hr were statistically different from placebo. At the end of a 48-hour infusion at 4.0 mg/hr, the decreases were 26.0 mmHg (17%) in systolic blood pressure at 20.7 mmHg (20%) in diastolic blood pressure. In other settings (e.g., patients with severe or postoperative hypertension), Cardene I.V. (5 to 15 mg/hr) produced dose-dependent decreases in blood pressure. Higher infusion rates produced therapeutic responses more rapidly. The mean time to therapeutic response for severe hypertension, defined as diastolic blood pressure </= 95 mmHg or >/= 25 mmHg decrease and systolic blood pressure </=160 mmHg, was 77 ± 5.2 minutes. The average maintenance dose was 8.0 mg/hr. The mean time to therapeutic response for postoperative hypertension, defined as >/=15% reduction in diastolic or systolic blood pressure, was 11.5 ± 0.8 minutes. The average maintenance dose was 3.0 mg/hr.

INDICATION AND USAGE

Cardene I.V. is indicated for the short-term treatment of hypertension when oral therapy is not feasible or not desirable.

For prolonged control of blood pressure, patients should be transferred to oral medication as soon as their clinical condition permits (see " DOSAGE AND ADMINISTRATION ").

CONTRAINDICATIONS

Cardene I.V. is contraindicated in patients with known hypersensitivity to the drug. Cardene I.V. is also contraindicated in patients with advanced aortic stenosis because part of the effect of Cardene I.V. is secondary to reduced afterload. Reduction of diastolic pressure in these patients may worsen rather than improve myocardial oxygen balance.

WARNINGS

BETA-BLOCKER WITHDRAWAL

Nicardipine is not a beta-blocker and therefore gives no protection against the dangers of abrupt beta-blocker withdrawal; any such withdrawal should be by gradual reduction dose of beta-blocker.

RAPID DECREASES IN BLOOD PRESSURE

No clinical events have been reported suggestive of a too rapid decreases in blood pressure with Cardene I.V. However, as with any antihypertensive agent, blood pressure lowering should be accomplished over as long a time as is compatible with the patient's clinical status.

USE IN PATIENTS WITH ANGINA

Increases in frequency, duration, or severity of angina have been seen in chronic oral therapy with Cardene capsules. Induction or exacerbation of angina has been seen in less than 1% of coronary artery disease patients treated with Cardene I.V. The mechanism of this effect has not been established.

USE IN PATIENTS WITH CONGESTIVE HEART FAILURE

Cardene I.V. reduced afterload without impairing myocardial contractility in preliminary hemodynamic studies of CHF patients. However, in vitro and in some patients, a negative inotropic effect has been observed. Therefore, caution should be exercised when using Cardene I.V., particularly in combination with a beta-blocker, in patients with CHF or significant left ventricular dysfunction.

USE IN PATIENTS WITH PHEOCHROMOCYTOMA

Only limited clinical experience exists in use of Cardene I.V. for patients with hypertension associated with pheochromocytoma. Caution should therefore be exercised when using the drug in these patients.

PERIPHERAL VEIN INFUSION SITE

To minimize the risk of peripheral venous irritation, it is recommended that the site of infusion of Cardene I.V., be changed every 12 hours.

PRECAUTIONS

GENERAL

Blood Pressure:    Because Cardene I.V. decreases peripheral resistance, monitoring of blood pressure during administration is required. Cardene I.V., like other calcium channel blockers, may occasionally produce symptomatic hypotension. Caution is advised to avoid systemic hypotension when administering the drug to patients who have sustained an acute cerebral infarction or hemorrhage.

Use in Patients with Impaired Hepatic Function:    Since nicardipine is metabolized in the liver, the drug should be used with caution in patients with impaired liver function or reduced hepatic blood flow. The use of lower dosages should be considered.

Nicardipine administered intravenously has been reported to increase hepatic venous pressure gradient by 4 mmHg in cirrhotic patients at high doses (5 mg/20 min). Cardene I.V. should therefore be used with caution in patients with portal hypertension.

Use in Patients with Impaired Renal Function:    When Cardene I.V. was given to mild to moderate hypertensive patients with moderate renal impairment, a significantly lower systemic clearance and higher AUC was observed. These results are consistent with those seen after oral administration of nicardipine. Careful dose titration is advised when treating renal impaired patients.

DRUG INTERACTIONS

Since Cardene I.V. may be administered to patients already being treated with other medications, including other antihypertensive agents, careful monitoring of these patients is necessary to detect and promptly treat any undesired effects from concomitant administration.

BETA-BLOCKERS

In most patients, Cardene I.V. can safely be used concomitantly with beta-blockers. However, caution should be exercised when using Cardene I.V. in combination with a beta-blocker in congestive heart failure patients (see " WARNINGS ").

CIMETIDINE

Cimetidine has been shown to increase nicardipine plasma concentrations with Cardene capsule administration. Patients receiving the two drugs concomitantly should be carefully monitored. Data with other histamine-2 antagonists are not available.

DIGOXIN

Studies have shown that Cardene capsules usually do not alter digoxin plasma concentrations. However, as a precaution, digoxin levels should be evaluated when concomitant therapy with Cardene I.V. is initiated.

FENTANYL ANESTHESIA

Hypotension has been reported during fentanyl anesthesia with concomitant use of a beta-blocker and a calcium channel blocker. Even though such interactions were not seen during clinical studies with Cardene I.V. (nicardipine hydrochloride), an increased volume of circulating fluids might be required if such an interaction were to occur.

CYCLOSPORINE

Concomitant administration of Cardene capsules and cyclosporine results in elevated plasma cyclosporine levels. Plasma concentrations of cyclosporine should therefore be closely monitored during Cardene I.V. administration, and the dose of cyclosporine reduced accordingly.

IN VITRO INTERACTION

The plasma protein binding of nicardipine was not altered when therapeutic concentrations of furosemide, propranolol, dipyridamole, warfarin, quinidine, or naproxen were added to human plasma in vitro.

CARCINOGENESIS, MUTAGENESIS, IMPAIRMENT OF FERTILITY

Rats treated with nicardipine in the diet (at concentrations calculated to provide daily dosage levels of 5, 15, or 45 mg/kg/day) for two years showed a dose-dependent increase in thyroid hyperplasia and neoplasia (follicular adenoma/carcinoma). One- and three-month studies in the rat have suggested that these results are linked to a nicardipine-induced reduction in plasma thyroxine (T4) levels with a consequent increase in plasma levels of thyroid stimulating hormone (TSH). Chronic elevation of TSH is known to cause hyperstimulation of the thyroid. In rats on an iodine deficient diet, nicardipine administration for one month was associated with thyroid hyperplasia that was prevented by T4 supplementation. Mice treated with nicardipine in the diet (at concentrations calculated to provide daily dosage levels of up to 100 mg/kg/day) for up to 18 months showed no evidence of neoplasia of any tissue and no evidence of thyroid changes. There was no evidence of thyroid pathology in dogs treated with up to 25 mg nicardipine/kg/day for one year and no evidence of effects of nicardipine on thyroid function (plasma T4 and TSH) in man. There was no evidence of a mutagenic potential of nicardipine in a battery of genotoxicity tests conducted on microbial indicator organisms, in micronucleus tests in mice and hamsters, or in a sister chromatid exchange study in hamsters. No impairment of fertility was seen in male or female rats administered nicardipine at oral doses as high as 100 mg/kg/day (50 times the 40 mg TID maximum recommended dose in man, assuming a patient weight of 60 kg).

Pregnancy Category C:    Cardene® I.V. at doses up to 5 mg/kg/day to pregnant rats and up to 0.5 mg/kg/day to pregnant rabbits produced no embryotoxicity or teratogenicity. Embryotoxicity was seen at 10 mg/kg/day in rats and at 1 mg/kg/day in rabbits, but no teratogenicity was observed at these doses.

Nicardipine was embryocidal when administered orally to pregnant Japanese White rabbits, during organogenesis, at 150 mg/kg/day (a dose associated with marked body weight gain suppression in the treated doe), but not at 50 mg/kg/day (25 times the maximum recommended dose in man). No adverse effects on the fetus were observed when New Zealand albino rabbits were treated, during organogenesis, with up to 100 mg nicardipine/kg/day (a dose associated with significant mortality in the treated doe). In pregnant rats administered nicardipine orally at up to 100 mg/kg/day (50 times the maximum recommended human dose) there was no evidence of embryolethality or teratogenicity. However, dystocia, reduced birth weights, reduced neonatal survival, and reduced neonatal weight gain were noted. There are no adequate and well-controlled studies in pregnant women. Cardene should be used during pregnancy only if the potential benefit justifies the potential risk to the fetus.

NURSING MOTHERS

Studies in rats have shown significant concentrations of nicardipine in maternal milk. For this reason, it is recommended that women who wish to breastfeed should not be given this drug.

PEDIATRIC USE

Safety and efficacy in patients under the age of 18 have not been established.

USE IN THE ELDERLY

No significant difference has been observed in the antihypertensive effect of Cardene I.V. in elderly patients (>/= 65 years) compared with other adult patients in clinical studies.

Adverse Experiences

Two hundred forty-four patients participated in two multicenter, double-blind, placebo-controlled trials of Cardene I.V. Adverse experiences were generally not serious and most were expected consequences of vasodilation. Adverse experiences occasionally required dosage adjustment. Therapy was discontinued in approximately 12% of patients, mainly due to hypotension, headache, and tachycardia.

RARE EVENTS

The following rare events have been reported in clinical trials or in the literature in association with the use of intravenously administered nicardipine.

Body as a Whole:    fever, neck pain

Cardiovascular:    angina pectoris, atrioventricular block, ST segment depression, inverted T wave, deep-vein thrombophlebitis

Digestive:    dyspepsia

Hemic and Lymphatic:    thrombocytopenia

Metabolic and Nutritional:    hypophosphatemia, peripheral edema

Nervous:    confusion, hypertonia

Respiratory:    respiratory disorder

Special Senses:    conjunctivitis, ear disorder, tinnitus

Urogenital:    urinary frequency

Sinus node dysfunction and myocardial infarction, which may be due to disease progression, have been seen in patients on chronic therapy with orally administered nicardipine.

OVERDOSAGE

Several overdosages with orally administered nicardipine have been reported. One adult patient allegedly ingested 600 mg of nicardipine [standard (immediate release) capsules], and another patient, 2160 mg of the sustained release formulation of nicardipine. Symptoms included marked hypotension, bradycardia, palpitations, flushing, drowsiness, confusion and slurred speech. All symptoms resolved without sequelae. An overdosage occurred in a one-year-old child who ingested half of the powder in a 30 mg nicardipine standard capsule. The child remained asymptomatic.

Based on results obtained in laboratory animals, lethal overdose may cause systemic hypotension, bradycardia (following initial tachycardia) and progressive atrioventricular conduction block. Reversible hepatic function abnormalities and sporadic focal hepatic necrosis were noted in some animal species receiving very large doses of nicardipine.

For treatment of overdosage, standard measures including monitoring of cardiac and respiratory functions should be implemented. The patient should be positioned so as to avoid cerebral anoxia.

Frequent blood pressure determinations are essential. Vasopressors are clinically indicated for patients exhibiting profound hypotension. Intravenous calcium gluconate may help reverse the effects of calcium entry blockade.

DOSAGE AND ADMINISTRATION

Cardene I.V. (nicardipine hydrochloride) is intended for intravenous use. DOSAGE MUST BE INDIVIDUALIZED depending upon the severity of hypertension and the response of the patient during dosing. Blood pressure should be monitored both during and after the infusion; too rapid or excessive reduction in either systolic or diastolic blood pressure during parenteral treatment should be avoided.

PREPARATION

WARNING: AMPULS MUST BE DILUTED BEFORE INFUSION

Dilution:    Cardene I.V. is administered by slow continuous infusion at a CONCENTRATION OF 0.1 MG/ML. Each ampul (25 mg) should be diluted with 240 mL of compatible intravenous fluid (see below), resulting in 250 mL of solution at a concentration of 0.1 mg/mL.

Cardene I.V. has been found to be compatible and stable in glass or polyvinyl chloride containers for 24 hours at controlled room temperature with:

Dextrose (5%) Injection, USP

Dextrose (5%) and Sodium Chloride (0.45%) Injection, USP

Dextrose (5%) and Sodium Chloride (0.9%) Injection, USP

Dextrose (5%) and 40 mEq Potassium, USP

Sodium Chloride (0.45%) Injection, USP

Sodium Chloride (0.9%) Injection, USP

Cardene I.V. is NOT compatible with Sodium Bicarbonate (5%) Injection, USP or Lactated Ringer's Injection, USP.

THE DILUTED SOLUTION IS STABLE FOR 24 HOURS AT ROOM TEMPERATURE.

Inspection:    As with all parenteral drugs, Cardene I.V. should be inspected visually for particulate matter and discoloration prior to administration, whenever solution and container permit. Cardene I.V. is normally light yellow in color.

DOSAGE

As a Substitute for Oral Nicardipine Therapy

The intravenous infusion rate required to produce an average plasma concentration equivalent to a given oral dose at steady state is shown in the following table:

For Initiation of Therapy in a Drug Free Patient

The time course of blood pressure decrease is dependent on the initial rate of infusion and the frequency of dosage adjustment.

Cardene I.V. is administered by slow continuous infusion at a CONCENTRATION OF 0.1 MG/ML. With constant infusion, blood pressure begins to fall within minutes. It reaches about 50% of its ultimate decrease in about 45 minutes and does not reach final steady state for about 50 hours.

When treating acute hypertensive episodes in patients with chronic hypertension, discontinuation of infusion is followed by a 50% offset of action in 30 ± 7 minutes but plasma levels of drug and gradually decreasing antihypertensive effects exist for about 50 hours.

Titration:   For gradual reduction in blood pressure, initiate therapy at 50 mL/hr (5.0 mg/hr). If desired blood pressure reduction is not achieved at this dose, the infusion rate may be increased by 25 mL/hr (2.5 mg/hr) every 15 minutes up to a maximum of 150 mL/hr (15.0 mg/hr), until desired blood pressure reduction is achieved.

For more rapid blood pressure reduction, initiate therapy at 50 mL/hr (5.0 mg/hr). If desired blood pressure reduction is not achieved at this dose, the infusion rate may be increased by 25 mL/hr (2.5 mg/hr) every 5 minutes up to a maximum of 150 mL/hr (15.0 mg/hr), until desired blood pressure reduction is achieved. Following achievement of the blood pressure goal, the infusion rate should be decreased to 30 mL/hr (3 mg/hr).

Maintenance:   The rate of infusion should be adjusted as needed to maintain desired response.

CONDITIONS REQUIRING INFUSION ADJUSTMENT

Hypotension or Tachycardia:    If there is concern of impending hypotension or tachycardia, the infusion should be discontinued. When blood pressure has stabilized, infusion of Cardene I.V. may be restarted at low doses such as 30 - 50 mL/hr (3.0 - 5.0 mg/hr) and adjusted to maintain desired blood pressure.

Infusion Site Changes:    Cardene I.V. should be continued as long as blood pressure control is needed. The infusion site should be changed every 12 hours if administered via peripheral vein.

Impaired Cardiac, Hepatic, or Renal Function:    Caution is advised when titrating Cardene I.V. in patients with congestive heart failure or impaired hepatic or renal function (see " PRECAUTIONS ").

TRANSFER TO ORAL ANTIHYPERTENSIVE AGENTS

If treatment includes transfer to an oral antihypertensive agent other than CARDENE capsules, therapy should generally be initiated upon discontinuation of Cardene I.V.

If Cardene capsules are to be used, the first dose of a TID regimen should be administered 1 hour prior to discontinuation of the infusion.

HOW SUPPLIED

Cardene® I.V. (nicardipine hydrochloride) is available in packages of 10 ampuls of 10 mL as follows:

25 mg (2.5 mg/mL), NDC 67286-0812-3.

Store at controlled room temperature 20° to 25°C (68° to 77°F).

Freezing does not adversely affect the product, but exposure to elevated temperatures should be avoided.

Protect from light. Store ampuls in carton until used.

U S Patent Nos.: 3,985,758; 4,880,823; and 5,164,405

Cardene® is a registered trademark of Roche Palo Alto LLC

Manufactured under license

from Roche Palo Alto LLC by:

Baxter Healthcare Corporation

Deerfield, IL 60015 USA

CI 4806-2

Marketed by:

Esp Pharma, Inc. A wholly owned subsidiary of Protein Design Labs, Inc.

Edison, NJ 08817

     CAR0001b    Revised July 18, 2005

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