OxyContin Dosage

Generic name: oxycodone hydrochloride
Dosage form: tablet, film coated, extended release

This dosage information does not include all the information needed to use OxyContin safely and effectively. See full prescribing information for OxyContin.

The information at Drugs.com is not a substitute for medical advice. ALWAYS consult your doctor or pharmacist.

Initial Dosing

​Initiate the dosing regimen for each patient individually, taking into account the patient's prior analgesic treatment experience. Monitor patients closely for respiratory depression, especially within the first 24-72 hours of initiating therapy with OxyContin [see Warnings and Precautions (5.2)].

​Consider the following factors when selecting an initial dose of OxyContin:

  • ​Total daily dose, potency, and any prior opioid the patient has been taking previously;
  • ​Reliability of the relative potency estimate used to calculate the equivalent dose of oxycodone needed (Note: potency estimates may vary with the route of administration);
  • ​Patient's degree of opioid experience and opioid tolerance;
  • ​General condition and medical status of the patient;
  • ​Concurrent medication;
  • ​Type and severity of the patient's pain.

​Use of OxyContin as the First Opioid Analgesic

​Initiate therapy with 10 mg every 12 hours.

​Conversion from other Oral Oxycodone Formulations to OxyContin

​Patients receiving other oral oxycodone formulations may be converted to OxyContin by administering one-half of the patient's total daily oral oxycodone dose as OxyContin every 12 hours.

​Conversion from other Opioids to OxyContin

​While there are useful tables of oral and parenteral equivalents, there is substantial inter-patient variation in the relative potency of different opioid drugs and formulations. Specific recommendations are not available because of a lack of systematic evidence for these types of analgesic substitutions. As such, it is safer to underestimate a patient's 24-hour oral oxycodone requirement and provide rescue medication (e.g., immediate-release oxycodone) than to overestimate and precipitate an adverse reaction. In general, begin with half of the estimated daily oxycodone requirement as the initial daily OxyContin estimate, then divide into two doses taken 12 hours apart, and manage inadequate analgesia by supplementation with immediate-release oxycodone.

​Published relative potency data are available and may be referred to in clinical practice guidelines such as those published by authorities in the field of pain medicine, but such ratios are approximations. Consider contacting your specific state medical or pharmacy professional societies for further information on how to safely convert patients from one opioid to another.

​Conversion from Transdermal Fentanyl to OxyContin

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

Titration and Maintenance of Therapy

​Individually titrate OxyContin to a dose that provides adequate analgesia and minimizes adverse reactions. Continually reevaluate patients receiving OxyContin to assess the maintenance of pain control and the relative incidence of adverse reactions. During chronic therapy, especially for non-cancer-related pain (or other pain associated with terminal illnesses), periodically reassess the continued need for the use of opioid analgesics.

​If the level of pain increases, attempt to identify the source of increased pain, while adjusting the OxyContin dose to decrease the level of pain. Because steady-state plasma concentrations are approximated in 1 day, OxyContin dosage adjustments may be done every 1 to 2 days. Patients who experience breakthrough pain may require dosage adjustment or rescue medication with an appropriate dose of an immediate-release opioid and non-opioid medication.

​If signs of excessive opioid-related adverse reactions are observed, the next dose may be reduced. Adjust the dose to obtain an appropriate balance between management of pain and opioid-related adverse reactions.

​There are no well-controlled clinical studies evaluating the safety and efficacy with dosing more frequently than every 12 hours. As a guideline, the total daily oxycodone dose usually can be increased by 25% to 50% of the current dose, each time an increase is clinically indicated.

Patients with Hepatic Impairment

​For patients with hepatic impairment, start dosing patients at 1/3 to 1/2 the usual starting dose followed by careful dose titration [see Clinical Pharmacology (12.3)].

Discontinuation of OxyContin

​When the patient no longer requires therapy with OxyContin tablets, use a gradual downward titration of the dose to prevent signs and symptoms of withdrawal in the physically dependent patient. Do not abruptly discontinue OxyContin.

Administration of OxyContin

​Instruct patients to swallow OxyContin tablets intact. The tablets are not to be crushed, dissolved, or chewed due to the risk of rapid release and absorption of a potentially fatal dose of oxycodone [see Warnings and Precautions (5.1, 5.2)].

​Instruct patients to take OxyContin one tablet at a time and with enough water to ensure complete swallowing immediately after placing in the mouth [see Warnings and Precautions (5.9), and Patient Counseling Information (17)].

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