Buprenorphine (Page 2 of 15)

2.3 Initial Dosage

Use of Buprenorphine Transdermal System as the First Opioid Analgesic (opioid-naive patients)

Initiate treatment with buprenorphine transdermal system with a 5 mcg/hour patch.

C onversion from Other Opioids to Buprenorphine Transdermal System

Discontinue all other around-the-clock opioid drugs when buprenorphine transdermal system therapy is initiated.

There is a potential for buprenorphine to precipitate withdrawal in patients who are already on opioids.

Prior Total Daily Dose of Opioid Less than 30 mg of Oral Morphine Equivalents per Day: Initiate treatment with buprenorphine transdermal system 5 mcg/hour at the next dosing interval (see Table 1 below, middle column).

Prior Total Daily Dose of Opioid Between 30 mg to 80 mg of Oral Morphine Equivalents per Day:

Taper the patient’s current around-the-clock opioids for up to 7 days to no more than 30 mg of morphine or equivalent per day before beginning treatment with buprenorphine transdermal system. Then initiate treatment with buprenorphine transdermal system 10 mcg/hour at the next dosing interval (see Table 1 below, right column). Patients may use short-acting analgesics as needed until analgesic efficacy with buprenorphine transdermal system is attained.

Prior Total Daily Dose of Opioid Greater than 80 mg of Oral Morphine Equivalents per Day:

Buprenorphine transdermal system 20 mcg/hour may not provide adequate analgesia for patients requiring greater than 80 mg/day oral morphine equivalents. Consider the use of an alternate analgesic.

Table 1: Initial Buprenorphine Transdermal System Dose

Previous Opioid Analgesic

Daily Dose

<30 mg

30 mg to 80 mg

(Oral Morphine Equivalent)

Recommended Buprenorphine Transdermal System Starting Dose

5 mcg/hour

10 mcg/hour

C onversion from Methadone to Buprenorphine Transdermal System

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.

2.4 Titration and Maintenance of Therapy

Individually titrate buprenorphine transdermal system to a dose that provides adequate analgesia and minimizes adverse reactions. Continually reevaluate patients receiving buprenorphine transdermal system to assess the maintenance of pain control and the relative incidence of adverse reactions, as well as monitoring for the development of addiction, abuse, or misuse [see Warnings and Precautions (5.1)]. Frequent communication is important among the prescriber, other members of healthcare team, the patient, and the caregiver/family during periods of changing analgesic requirements, including initial titration. During chronic therapy, periodically reassess the continued need for opioid analgesics.

The minimum buprenorphine transdermal system titration interval is 72 hours, based on the pharmacokinetic profile and time to reach steady state levels [see Clinical Pharmacology (12.3)].

The maximum buprenorphine transdermal system dose is 20 mcg/hour. Do not exceed a dose of one
20 mcg/hour buprenorphine transdermal system due to the risk of QTc interval prolongation. In a clinical trial, buprenorphine transdermal system 40 mcg/hour (given as two buprenorphine transdermal 20 mcg/hour systems) resulted in prolongation of the QTc interval [see Warnings and Precautions (5.12), Clinical Pharmacology (12.2)].

Patients who experience breakthrough pain may require dosage adjustment increase of buprenorphine transdermal system, or may need rescue medication with an appropriate dose of an immediate-release analgesic. If the level of pain increases after dose stabilization, attempt to identify the source of increased pain before increasing the buprenorphine transdermal system dose.

Because steady-state plasma concentrations are achieved within 72 hours, buprenorphine transdermal system dosage may be adjusted every 3 days. Dose adjustments may be made in 5 mcg/hour, 7.5 mcg/hour, or 10 mcg/hour increments by using no more than two patches of the 5 mcg/hour, or 7.5 mcg/hour, or 10 mcg/hour system(s). The total dose from both patches should not exceed 20 mcg/hour. For the use of two patches, instruct patients to remove their current patch, and apply the two new patches at the same time, adjacent to one another at a different application site [see Dosage and Administration (2.7)].

If unacceptable opioid-related adverse reactions are observed, consider reducing the dosage. Adjust the dosage to obtain an appropriate balance between the management of pain and opioid-related adverse reactions.

2.5 Safe Reduction or Discontinuation of Buprenorphine Transdermal System

Do not abruptly discontinue buprenorphine transdermal system in patients who may be physically dependent on opioids. Rapid discontinuation of opioid analgesics in patients who are physically dependent on opioids has resulted in serious withdrawal symptoms, uncontrolled pain, and suicide. Rapid discontinuation has also been associated with attempts to find other sources of opioid analgesics, which may be confused with drug-seeking for abuse. Patients may also attempt to treat their pain or withdrawal symptoms with illicit opioids, such as heroin, and other substances.

When a decision has been made to decrease the dose or discontinue therapy in an opioid-dependent patient taking buprenorphine transdermal system, there are a variety of factors that should be considered, including the dose of buprenorphine transdermal system the patient has been taking, the duration of treatment, the type of pain being treated, and the physical and psychological attributes of the patient. It is important to ensure ongoing care of the patient and to agree on an appropriate tapering schedule and follow-up plan so that patient and provider goals and expectations are clear and realistic. When opioid analgesics are being discontinued due to a suspected substance use disorder, evaluate and treat the patient, or refer for evaluation and treatment of the substance use disorder. Treatment should include evidence-based approaches, such as medication assisted treatment of opioid use disorder. Complex patients with comorbid pain and substance use disorders may benefit from referral to a specialist.

There are no standard opioid tapering schedules that are suitable for all patients. Good clinical practice dictates a patient-specific plan to taper the dose of the opioid gradually. For patients on buprenorphine transdermal system who are physically opioid-dependent, initiate the taper by a small enough increment (e.g., no greater than 10% to 25% of the total daily dose) to avoid withdrawal symptoms, and proceed with dose-lowering at an interval of every 2 to 4 weeks. Patients who have been taking opioids for briefer periods of time may tolerate a more rapid taper. It may be necessary to provide the patient with lower dosage strengths to accomplish a successful taper.

Reassess the patient frequently to manage pain and withdrawal symptoms, should they emerge. Common withdrawal symptoms include restlessness, lacrimation, rhinorrhea, yawning, perspiration, chills, myalgia, and mydriasis. Other signs and symptoms also may develop, including irritability, anxiety, backache, joint pain, weakness, abdominal cramps, insomnia, nausea, anorexia, vomiting, diarrhea, or increased blood pressure, respiratory rate, or heart rate. If withdrawal symptoms arise, it may be necessary to pause the taper for a period of time or raise the dose of the opioid analgesic to the previous dose, and then proceed with a slower taper. In addition, monitor patients for any changes in mood, emergence of suicidal thoughts, or use of other substances.

When managing patients taking opioid analgesics, particularly those who have been treated for a long duration and/or with high doses for chronic pain, ensure that a multimodal approach to pain management, including mental health support (if needed), is in place prior to initiating an opioid analgesic taper. A multimodal approach to pain management may optimize the treatment of chronic pain, as well as assist with the successful tapering of the opioid analgesic [see Warnings and Precautions (5.3), Drug Abuse and Dependence (9.3)].

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