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OXYCODONE HYDROCHLORIDE AND ACETAMINOPHEN
oxycodone hydrochloride and
OXYCODONE* AND ACETAMINOPHEN CAPSULES, USP
Each capsule, for oral administration, contains:
Oxycodone Hydrochloride, USP..................................5 mg
*WARNING – May be habit forming
Acetaminophen, USP....................................................500 mg
In addition each capsule contains the following inactive ingredients: croscarmellose sodium, FD&C Red #40, gelatin, magnesium stearate, povidone, pregelatinized starch, stearic acid and titanium dioxide.
The acetaminophen component is 4'-hydroxyacetanilide, a white, odorless, crystalline powder, possessing a slightly bitter taste, and having the following structural formula:
The oxycodone component is 14-hydroxydihydrocodeinone, a white, odorless, crystalline powder having a saline bitter taste. It is derived from the opium alkaloid thebaine, and may be represented by the following structural formula:
The principal ingredient, oxycodone, is a semisynthetic narcotic analgesic with multiple actions qualitatively similar to those of morphine; the most prominent of these involve the central nervous system and organs composed of smooth muscle. The principal actions of therapeutic value of the oxycodone in this product are analgesia and sedation.
Oxycodone is similar to codeine and methadone in that it retains at least one-half of its analgesic activity when administered orally.
Acetaminophen is a non-opiate, non-salicylate analgesic and antipyretic.
INDICATIONS AND USAGE
Oxycodone and Acetaminophen Capsules are indicated for the relief of moderate to moderately severe pain.
Oxycodone and Acetaminophen Capsules should not be administered to patients who are hypersensitive to any component.
Oxycodone can produce drug dependence of the morphine type and, therefore, has the potential for being abused. Psychic dependence, physical dependence and tolerance may develop upon repeated administration of this drug and it should be prescribed and administered with the same degree of caution appropriate to the use of other oral narcotic-containing medications. Like other narcotic-containing medications, Oxycodone and Acetaminophen Capsules are subject to the Federal Controlled Substance Act (Schedule II).
Head Injury and Increased Intracranial Pressure:
The respiratory depressant effects of narcotics and their capacity to elevate cerebrospinal fluid pressure may be markedly exaggerated in the presence of head injury, other intracranial lesions or a pre-existing increase in intracranial pressure. Furthermore, narcotics produce adverse reactions which may obscure the clinical course of patients with head injuries.
Acute Abdominal Conditions:
The administration of products containing oxycodone or other narcotics may obscure the diagnosis or clinical course in patients with acute abdominal conditions.
Information for Patients
Oxycodone may impair the mental and/or physical abilities required for the performance of potentially hazardous tasks such as driving a car or operating machinery. The patient using Oxycodone and Acetaminophen Capsules should be cautioned accordingly.
Patients receiving other narcotic analgesics, general anesthetics, phenothiazines, other tranquilizers, sedative-hypnotics or other CNS depressants (including alcohol) concomitantly with Oxycodone and Acetaminophen Capsules may exhibit an additive CNS depression. When such combined therapy is contemplated, the dose of one or both agents should be reduced.
The concurrent use of anticholinergics with narcotics may produce paralytic ileus.
Pregnancy Category C:
Animal reproductive studies have not been conducted with Oxycodone and Acetaminophen Capsules. It is also not known whether Oxycodone and Acetaminophen Capsules can cause fetal harm when administered to a pregnant woman or can affect reproductive capacity. Oxycodone and Acetaminophen Capsules should not be given to a pregnant woman unless in the judgment of the physician, the potential benefits outweigh the possible hazards.
Labor and Delivery
As with all narcotics, administration of Oxycodone and Acetaminophen Capsules to the mother shortly before delivery may result in some degree of respiratory depression in the newborn and the mother, especially if higher doses are used.
It is not known whether the components of this product are excreted in human milk. Because many drugs are excreted in human milk, caution should be exercised when Oxycodone and Acetaminophen Capsules are administered to a nursing woman.
The most frequently observed adverse reactions include lightheadedness, dizziness, sedation, nausea and vomiting. These effects seem to be more prominent in ambulatory than in nonambulatory patients, and some of these adverse reactions may be alleviated if the patient lies down.
Other adverse reactions include euphoria, dysphoria, constipation, skin rash and pruritus. At higher doses, oxycodone has most of the disadvantages of morphine including respiratory depression.
DRUG ABUSE AND DEPENDENCE
Oxycodone and Acetaminophen Capsules are a Schedule II controlled substance.
Oxycodone can produce drug dependence and has the potential for being abused. (See WARNINGS).
Signs and Symptoms:
In acute acetaminophen overdosage, dose-dependent potentially fatal hepatic necrosis is the most serious adverse effect. Renal tubular necrosis, hypoglycemic coma and thrombocytopenia may also occur.
In adults, hepatic toxicity has rarely been reported with acute overdoses of less than 10 grams and fatalities with less than 15 grams. Importantly, young children seem to be more resistant than adults to the hepatotoxic effect of an acetaminophen overdose. Despite this, the measures outlined below should be initiated in any adult or child suspected of having ingested an acetaminophen overdose.
Early symptoms following a potentially hepatotoxic overdose may include: nausea, vomiting, diaphoresis and general malaise. Clinical and laboratory evidence of hepatic toxicity may not be apparent until 48 to 72 hours post-ingestion.
The stomach should be emptied promptly by lavage or by induction of emesis with syrup of ipecac. Patients' estimates of the quantity of a drug ingested are notoriously unreliable. Therefore, if an acetaminophen overdose is suspected, a serum acetaminophen assay should be obtained as early as possible, but no sooner than four hours following ingestion. Liver function studies should be obtained initially and repeated at 24-hour intervals.
The antidote, N-acetylcysteine, should be administered as early as possible, and within 16 hours of the overdose ingestion for optimal results. Following recovery, there are no residual, structural, or functional hepatic abnormalities.
Signs and Symptoms:
Serious overdosage with oxycodone is characterized by respiratory depression (a decrease in respiratory rate and/or tidal volume, Cheyne-Stokes respiration, cyanosis), extreme somnolence progressing to stupor or coma, skeletal muscle flaccidity, cold and clammy skin, and sometimes bradycardia and hypotension. In severe overdosage, apnea, circulatory collapse, cardiac arrest and death may occur.
Primary attention should be given to the reestablishment of adequate respiratory exchange through provision of a patent airway and the institution of assisted or controlled ventilation. The narcotic antagonist naloxone hydrochloride is a specific antidote against respiratory depression which may result from overdosage or unusual sensitivity to narcotics, including oxycodone. Therefore, an appropriate dose of naloxone hydrochloride (usual initial adult dose 0.4 mg to 2 mg) should be administered preferably by the intravenous route, and simultaneously with efforts at respiratory resuscitation (see package insert). Since the duration of action of oxycodone may exceed that of the antagonist, the patient should be kept under continued surveillance and repeated doses of the antagonist should be administered as needed to maintain adequate respiration.
An antagonist should not be administered in the absence of clinically significant respiratory or cardiovascular depression. Oxygen, intravenous fluids, vasopressors and other supportive measures should be employed as indicated.
Gastric emptying may be useful in removing unabsorbed drug.
DOSAGE AND ADMINISTRATION
Dosage should be adjusted according to the severity of the pain and the response of the patient. It may occasionally be necessary to exceed the usual dosage recommended below in cases of more severe pain or in those patients who have become tolerant to the analgesic effect of narcotics.
Oxycodone and Acetaminophen Capsules are given orally. The usual adult dosage is one Oxycodone and Acetaminophen Capsule every 6 hours as needed for pain.
Oxycodone Hydrochloride and Acetaminophen Capsules, USP, 5 mg/500 mg, supplied as a red capsule, imprinted 4832/V in bottles of 100, 500 and 1000. Dispense in tight, light-resistant container as defined in the official USP.
Revised: 09/2008 Qualitest Pharmaceuticals
Reproduced with permission of U.S. National Library of Medicine
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