XTAMPZA ER

XTAMPZA ER- oxycodone capsule, extended release
Lake Erie Medical DBA Quality Care Products LLC

WARNING: ADDICTION, ABUSE, AND MISUSE; LIFE-THREATENING RESPIRATORY DEPRESSION; ACCIDENTAL INGESTION; NEONATAL OPIOID WITHDRAWAL SYNDROME; CYTOCHROME P450 3A4 INTERACTION; and RISKS FROM CONCOMITANT USE WITH BENZODIAZEPINES OR OTHER CNS DEPRESSANTS

Addiction, Abuse, and Misuse

XTAMPZA ER exposes patients and other users to the risks of opioid addiction, abuse, and misuse, which can lead to overdose and death. Assess each patient’s risk prior to prescribing XTAMPZA ER and monitor all patients regularly for the development of these behaviors or conditions [see Warnings and Precautions (5.1)].

Life-Threatening Respiratory Depression

Serious, life-threatening, or fatal respiratory depression may occur with use of XTAMPZA ER. Monitor for respiratory depression, especially during initiation of XTAMPZA ER or following a dose increase [see Warnings and Precautions (5.2)].

Accidental Ingestion

Accidental ingestion of even one dose of XTAMPZA ER, especially by children, can result in a fatal overdose of oxycodone [see Warnings and Precautions (5.2)].

Neonatal Opioid Withdrawal Syndrome

Prolonged use of XTAMPZA ER during pregnancy can result in neonatal opioid withdrawal syndrome, which may be life-threatening if not recognized and treated, and requires management according to protocols developed by neonatology experts. If opioid use is required for a prolonged period in a pregnant woman, advise the patient of the risk of neonatal opioid withdrawal syndrome and ensure that appropriate treatment will be available [see Warnings and Precautions (5.3)].

Cytochrome P450 3A4 Interaction

The concomitant use of XTAMPZA ER with all cytochrome P450 3A4 inhibitors may result in an increase in oxycodone plasma concentrations, which could increase or prolong adverse drug effects and may cause potentially fatal respiratory depression. In addition, discontinuation of a concomitantly used cytochrome P450 3A4 inducer may result in an increase in oxycodone plasma concentration. Monitor patients receiving XTAMPZA ER and any CYP3A4 inhibitor or inducer [see Warnings and Precautions (5.4) and Clinical Pharmacology (12.3)].

Risks From Concomitant Use With Benzodiazepines Or Other CNS Depressants

Concomitant use of opioids with benzodiazepines or other central nervous system (CNS) depressants, including alcohol, may result in profound sedation, respiratory depression, coma, and death [see Warnings and Precautions (5.5), Drug Interactions (7)].

  • Reserve concomitant prescribing of XTAMPZA ER and benzodiazepines or other CNS depressants for use in patients for whom alternative treatment options are inadequate.
  • Limit dosages and durations to the minimum required.
  • Follow patients for signs and symptoms of respiratory depression and sedation.

1 INDICATIONS AND USAGE

XTAMPZA ER is indicated for the management of pain severe enough to require daily, around-the-clock, long-term opioid treatment and for which alternative treatment options are inadequate.

Limitations of Use

  • Because of the risks of addiction, abuse, and misuse with opioids, even at recommended doses, and because of the greater risks of overdose and death with extended-release opioid formulations, reserve XTAMPZA ER for use in patients for whom alternative treatment options (e.g., non-opioid analgesics or immediate-release opioids) are ineffective, not tolerated, or would be otherwise inadequate to provide sufficient management of pain.
  • XTAMPZA ER is not indicated as an as-needed (prn) analgesic.

2 DOSAGE AND ADMINISTRATION

2.1 Important Dosage and Administration Instructions

XTAMPZA ER should be prescribed only by healthcare professionals who are knowledgeable in the use of potent opioids for the management of chronic pain.

XTAMPZA ER single doses greater than 36 mg (equivalent to 40 mg oxycodone hydrochloride [HCl]) or a total daily dose greater than 72 mg (equivalent to 80 mg oxycodone HCl) are to be administered only to patients in whom tolerance to an opioid of comparable potency has been established. Patients considered opioid tolerant are those receiving, for one week or longer, at least 60 mg oral morphine per day, 25 mcg transdermal fentanyl per hour, 30 mg oral oxycodone HCl per day, 8 mg oral hydromorphone per day, 25 mg oral oxymorphone per day, 60 mg oral hydrocodone per day, or an equianalgesic dose of another opioid.

XTAMPZA ER is administered, twice daily, every 12 hours, and must be taken with food. Instruct patients to take XTAMPZA ER capsules with approximately the same amount of food for every dose in order to ensure consistent plasma levels are achieved. [see Clinical Pharmacology (12.3)].

Patients who are unable to swallow XTAMPZA ER should be instructed to sprinkle the capsule contents on soft foods or into a cup and then administer directly into the mouth and immediately swallow. XTAMPZA ER may also be administered through a gastrostomy or nasogastric feeding tube [see Dosage and Administration 2.6].

  • Use the lowest effective dosage for the shortest duration consistent with individual patient treatment goals [see Warnings and Precautions (5)].
  • Initiate the dosing regimen for each patient individually, taking into account the patient’s severity of pain, patient response, prior analgesic treatment experience, and risk factors for addiction, abuse, and misuse [see Warnings and Precautions (5.1)].
  • Monitor patients closely for respiratory depression, especially within the first 24-72 hours of initiating therapy and following dosage increases with XTAMPZA ER and adjust the dosage accordingly [see Warnings and Precautions (5.2)].

The maximum daily dose of XTAMPZA ER is 288 mg per day (eight 36 mg capsules, equivalent to 320 mg oxycodone HCl per day) as the safety of the excipients in XTAMPZA ER for doses over 288 mg/day has not been established.

XTAMPZA ER is formulated with oxycodone base. The following table describes the equivalent amount of oxycodone HCl present in other oxycodone products.

Equivalence table for dosage strengths of oxycodone hydrochloride salt and oxycodone base (XTAMPZA ER)
Oxycodone Hydrochloride Oxycodone base (XTAMPZA ER)
10 mg 9 mg
15 mg 13.5 mg
20 mg 18 mg
30 mg 27 mg
40 mg 36 mg

2.2 Initial Dosing

Use of XTAMPZA ER as the First Opioid Analgesic (Opioid-Naïve Patients)

Initiate treatment with XTAMPZA ER with one 9 mg capsule orally every 12 hours with food.

Use of XTAMPZA ER in Patients who are not Opioid Tolerant

The starting dose for patients who are not opioid tolerant is XTAMPZA ER 9 mg orally every 12 hours with food.

Use of higher starting doses in patients who are not opioid tolerant may cause fatal respiratory depression [see Warnings and Precautions (5.2)].

Conversion from other Oral Oxycodone Formulations to XTAMPZA ER

Patients receiving other oral oxycodone formulations, may be converted to XTAMPZA ER, using the same total daily dose of oxycodone, by administering one-half of the patient’s total daily oral oxycodone dose as XTAMPZA ER every 12 hours with food. Because XTAMPZA ER is not bioequivalent to other oxycodone extended-release products, monitor patients for possible dosage adjustment [see Dosage and Administration (2.1) and Patient Counseling Information (17)].

Conversion from other Opioids to XTAMPZA ER

Discontinue all other around-the-clock opioid drugs when XTAMPZA ER therapy is initiated.

There are no established conversion ratios for conversion from other opioids to XTAMPZA ER defined by clinical trials. Initiate dosing using XTAMPZA ER 9 mg orally every 12 hours with food.

It is safer to underestimate a patient’s 24-hour oral oxycodone dosage and provide rescue medication (e.g., immediate-release opioid) than to overestimate the 24-hour oral oxycodone dosage and manage adverse reactions due to an overdose. While useful tables of opioid equivalents are readily available, there is substantial inter-patient variability in the relative potency of different opioid drugs and products.

Conversion from Methadone to XTAMPZA ER

Close monitoring is of particular importance when converting from methadone to other opioid agonists. The ratio between methadone and other opioid agonists may vary widely as a function of previous dose exposure. Methadone has a long half-life and can accumulate in the plasma.

Conversion from Transdermal Fentanyl to XTAMPZA ER

Eighteen hours following the removal of the transdermal fentanyl patch, XTAMPZA ER treatment can be initiated. Although there has been no systematic assessment of such conversion, a conservative oxycodone dose, approximately 9 mg (equivalent to 10 mg oxycodone HCl) every 12 hours of XTAMPZA ER, should be initially substituted for each 25 mcg/hr fentanyl transdermal patch. Follow the patient closely during conversion from transdermal fentanyl to XTAMPZA ER, as there is limited documented experience with this conversion.

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