CAROSPIR- spironolactone suspension
CMP Pharma, Inc.
CAROSPIR (spironolactone) is indicated in the management of:
CAROSPIR is indicated for treatment of NYHA Class III-IV heart failure and reduced ejection fraction to increase survival, manage edema, and to reduce the need for hospitalization for heart failure.
CAROSPIR is usually administered in conjunction with other heart failure therapies.
CAROSPIR is indicated as an add-on therapy for the treatment of hypertension, to lower blood pressure in adult patients who are not adequately controlled on other agents. Lowering blood pressure reduces the risk of fatal and nonfatal cardiovascular events, primarily strokes and myocardial infarctions. These benefits have been seen in controlled trials of antihypertensive drugs from a wide variety of pharmacologic classes.
Control of high blood pressure should be part of comprehensive cardiovascular risk management, including, as appropriate, lipid control, diabetes management, antithrombotic therapy, smoking cessation, exercise, and limited sodium intake. Many patients will require more than one drug to achieve blood pressure goals. For specific advice on goals and management, see published guidelines, such as those of the National High Blood Pressure Education Program’s Joint National Committee on Prevention, Detection, Evaluation, and Treatment of High Blood Pressure (JNC).
Numerous antihypertensive drugs, from a variety of pharmacologic classes and with different mechanisms of action, have been shown in randomized controlled trials to reduce cardiovascular morbidity and mortality, and it can be concluded that it is blood pressure reduction, and not some other pharmacologic property of the drugs, that is largely responsible for those benefits. The largest and most consistent cardiovascular outcome benefit has been a reduction in the risk of stroke, but reductions in myocardial infarction and cardiovascular mortality also have been seen regularly. Elevated systolic or diastolic pressure causes increased cardiovascular risk, and the absolute risk increase per mmHg is greater at higher blood pressures, so that even modest reductions of severe hypertension can provide substantial benefit. Relative risk reduction from blood pressure reduction is similar across populations with varying absolute risk, so the absolute benefit is greater in patients who are at higher risk independent of their hypertension (for example, patients with diabetes or hyperlipidemia), and such patients would be expected to benefit from more aggressive treatment to a lower blood pressure goal.
Some antihypertensive drugs have smaller blood pressure effects (as monotherapy) in black patients, and many antihypertensive drugs have additional approved indications and effects (e.g. on angina, heart failure, or diabetic kidney disease). These considerations may guide selection of therapy.
CAROSPIR is indicated for the management of edema in adult cirrhotic patients when edema is not responsive to fluid and sodium restriction.
CAROSPIR is not therapeutically equivalent to Aldactone. Follow dosing instructions given here. In patients requiring a dose greater than 100 mg, use another formulation. Doses of the suspension greater than 100 mg may result in spironolactone concentrations higher than expected [see Clinical Pharmacology (12.3)].
CAROSPIR can be taken with or without food, but should be taken consistently with respect to food [see Clinical Pharmacology (12.3)].
In patients with serum potassium ≤5.0 mEq/L and eGFR >50 mL/min/1.73m2 , initiate treatment at 20 mg (4 mL) once daily. Patients who tolerate 20 mg (4 mL) once daily may have their dosage increased to 37.5 mg (7.5 mL) once daily as clinically indicated. Patients who develop hyperkalemia on 20 mg (4 mL) once daily may have their dosage reduced to 20 mg (4 mL) every other day [see Warning and Precautions 5.1)]. In patients with an eGFR between 30 and 50 mL/min/1.73m2 , consider initiating treatment at 10 mg (2 mL) because of the risk of hyperkalemia [see Use in Specific Populations (8.6)].
The recommended initial daily dose is 20 mg (4 mL) to 75 mg (15 mL) administered in either single or divided doses. Dosage can be titrated at two-week intervals. Doses >75 mg/day generally do not provide additional reductions in blood pressure.
In patients with cirrhosis, initiate therapy in a hospital setting and titrate slowly [see Use in Specific Populations (8.6)] and Clinical Pharmacology (12.3)]. The recommended initial daily dose is 75 mg (15 mL) administered in either single or divided doses. In patients requiring titration above 100 mg, use another formulation [see Dosage and Administration (2.1)]. When given as the sole agent for diuresis, administer for at least five days before increasing dose to obtain desired effect.
Oral Suspension: 25 mg/5 mL (5 mg/mL); white to off-white, banana flavored.
CAROSPIR is contraindicated for patients with the following conditions:
- Addison’s disease
- Concomitant use of eplerenone
CAROSPIR can cause hyperkalemia. This risk is increased by impaired renal function or concomitant potassium supplementation, potassium-containing salt substitutes or drugs that increase potassium, such as angiotensin converting enzyme inhibitors and angiotensin receptor blockers [see Drug Interactions (7.1)].
Closer monitoring may be needed when CAROSPIR is given with other drugs that cause hyperkalemia or in patients with impaired renal function.
If hyperkalemia occurs, decrease the dose or discontinue CAROSPIR and treat hyperkalemia.
Excessive diuresis may cause symptomatic dehydration, hypotension and worsening renal function, particularly in salt-depleted patients or those taking angiotensin converting enzyme inhibitors and angiotensin II receptor blockers. Worsening of renal function can also occur with concomitant use of nephrotoxic drugs (e.g., aminoglycosides, cisplatin, and NSAIDs). Monitor volume status and renal function periodically.
In addition to causing hyperkalemia, CAROSPIR can cause hyponatremia, hypomagnesemia, hypocalcemia, hypochloremic alkalosis, and hyperglycemia. Asymptomatic hyperuricemia can occur and rarely gout is precipitated. Monitor serum electrolytes, uric acid and blood glucose periodically.
CAROSPIR can cause gynecomastia. In RALES, patients with heart failure treated with a mean dose of 26 mg of spironolactone once daily, about 9% of the male subjects developed gynecomastia. The risk of gynecomastia increases in a dose-dependent manner with an onset that varies widely from 1-2 months to over a year. Gynecomastia is usually reversible.
The following clinically significant adverse reactions are described elsewhere in the labeling:
- Hyperkalemia [see Warnings and Precautions (5.1)]
- Hypotension and Worsening Renal Function [see Warnings and Precautions (5.2)]
- Electrolyte and Metabolic Abnormalities [see Warnings and Precautions (5.3)]
- Gynecomastia [see Warnings and Precautions (5.4)]
- Impaired neurological function/ coma in patients with hepatic impairment, cirrhosis and ascites [see Use in Specific Populations (8.7)]
The following adverse reactions associated with the use of spironolactone were identified in clinical trials or postmarketing reports. Because these reactions were reported voluntarily from a population of uncertain size, it is not always possible to estimate their frequency, reliably, or to establish a causal relationship to drug exposure.
Digestive: Gastric bleeding, ulceration, gastritis, diarrhea and cramping, nausea, vomiting.
Reproductive: Gynecomastia [see Warnings and Precautions (5.4)], decreased libido, inability to achieve or maintain erection, irregular menses or amenorrhea, postmenopausal bleeding, breast nad nipple pain.
Hematologic: Leukopenia (including agranulocytosis), thrombocytopenia.
Hypersensitivity: Fever, urticaria, maculopapular or erythematous cutaneous eruptions, anaphylactic reactions, vasculitis.
Musculoskeletal: Leg cramps.
Nervous system /psychiatric: Lethargy, mental confusion, ataxia, dizziness, headache, drowsiness.
Liver / biliary: A very few cases of mixed cholestatic/hepatocellular toxicity, with one reported fatality, have been reported with spironolactone administration.
Renal: Renal dysfunction (including renal failure).
Skin: Stevens-Johnson Syndrome (SJS), toxic epidermal necrolysis (TEN), drug rash with eosinophilia and systemic symptoms (DRESS), alopecia, pruritis, chloasma.
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