OXYCODONE HYDROCHLORIDE

Oxycodone Hydrochloride Oral Solution, USP is an agonist, available as a red solution 5 mg/5 mL (1 mg/mL) and a yellow solution 100 mg/5 mL (20 mg/mL) for oral administration. The chemical name is (5R,9R,13S,14S)-4, 5α-epoxy-14-hydroxy-3-methoxy-17-methylmorphinan-6-one hydrochloride. The molecular weight is 351.82. Its molecular formula is C 18 H 21 NO 4 • HCl, and it has the following chemical structure. Oxycodone hydrochloride is a white, odorless crystalline powder derived from the opium alkaloid, thebaine. It is soluble in water and slightly soluble in alcohol. The inactive ingredients in Oxycodone Hydrochloride Oral Solution, USP 5 mg per 5 mL (1 mg/mL) include: FD&C Red #40 powder, glycerin, hydrochloric acid, maltitol syrup, natural/artificial berry flavor, purified water, sodium benzoate, sorbitol, and sucralose powder. Hydrochloric acid and/or sodium hydroxide may be added to adjust pH. The inactive ingredients in Oxycodone Hydrochloride Oral Solution, USP 100 mg per 5 mL (20 mg/ mL) include: D&C Yellow #10, glycerin, hydrochloric acid, maltitol syrup, natural/artificial berry flavor, purified water, sodium benzoate, sorbitol, and sucralose powder. Hydrochloric acid and/or sodium hydroxide may be added to adjust pH. chemical structure

Oxycodone Hydrochloride Oral Solution is indicated for the management of pain severe enough to require an opioid analgesic and for which alternative treatments are inadequate. Oxycodone Hydrochloride Oral Solution 100 mg per 5 mL (20 mg/mL) is indicated for the relief of pain in opioid-tolerant adults. Limitations of Use Because of the risks of addiction, abuse, and misuse with opioids, which can occur at any dosage or duration [see Warnings and Precautions (5.2)], reserve Oxycodone Hydrochloride Oral Solution for use in patients for whom alternative treatment options [e.g., non-opioid analgesics or opioid combination products]: • Have not been tolerated, or are not expected to be tolerated • Have not provided adequate analgesia or are not expected to provide adequate analgesia Oxycodone Hydrochloride Oral Solution should not be used for an extended period of time unless the pain remains severe enough to require an opioid analgesic and for which alternative treatment options continue to be inadequate. Oxycodone Hydrochloride Oral Solution is an opioid agonist indicated in adults for the management of pain severe enough to require an opioid analgesic and for which alternative treatments are inadequate. (1) Oxycodone Hydrochloride Oral Solution 100 mg per 5 mL (20 mg/mL) is indicated for the relief of pain in opioid-tolerant adults. Limitations of Use (1) Because of the risks of addiction, abuse, and misuse with opioids, which can occur at any dosage or duration (5.2), reserve Oxycodone Hydrochloride Oral Solution for use in patients for whom alternative treatment options [e.g., non-opioid analgesics or opioid combination products]: • Have not been tolerated, or are not expected to be tolerated, • Have not provided adequate analgesia, or are not expected to provide adequate analgesia Oxycodone Hydrochloride Oral Solution should not be used for an extended period of time unless the pain remains severe enough to require an opioid analgesic and for which alternative treatment options continue to be inadequate.

• Oxycodone Hydrochloride Oral Solution should be prescribed only by healthcare professionals who are knowledgeable about the use of opioids and how to mitigate the associated risks. (2.1) • Use the lowest effective dosage for the shortest duration consistent with individual patient treatment goals. Reserve titration to higher doses of Oxycodone Hydrochloride Oral Solution for patients in whom lower doses are insufficiently effective and in whom the expected benefits of using a higher dose opioid clearly outweigh the substantial risks. (2.1, 5) • Many acute pain conditions (e.g., the pain that occurs with a number of surgical procedures or acute musculoskeletal injuries) require no more than a few days of an opioid analgesic. Clinical guidelines on opioid prescribing for some acute pain conditions are available. (2.1) • Initiate the dosing regimen for each patient individually, taking into account the patient’s underlying cause and severity of pain, prior analgesic treatment and response, and risk factors for addiction, abuse and misuse. (2.1, 5.2) • Respiratory depression can occur at any time during opioid therapy, especially when initiating and following dosage increases with Oxycodone Hydrochloride Oral Solution. Consider this risk when selecting an initial dose and when making dose adjustments. (2.1, 5.3) • Discuss availability of naloxone with the patient and caregiver and assess each patient’s need for access to naloxone, both when initiating and renewing treatment with Oxycodone Hydrochloride Oral Solution. Consider prescribing naloxone based on the patient’s risk factors for overdose (2.2, 5.2, 5.3, 5.4). • Initiate dosing with a range of 5 to 15 mg every 4 to 6 hours as needed for pain, and at the lowest dose necessary to achieve adequate analgesia. Titrate the dose based upon the individual patient’s response to their initial dose of Oxycodone Hydrochloride Oral Solution. (2.3, 2.4) • Do not abruptly discontinue Oxycodone Hydrochloride Oral Solution in a physically dependent patient because rapid discontinuation of opioid analgesics has resulted in serious withdrawal symptoms, uncontrolled pain, and suicide. (2.5, 5.15) 2.1 Important Dosage and Administration Instructions Oxycodone Hydrochloride Oral Solution is available in two concentrations: 5 mg per 5 mL (1 mg/mL), and 100 mg per 5 mL (20 mg/mL). Oxycodone Hydrochloride Oral Solution 100 mg per 5 mL (20 mg/mL) is for use in only opioid-tolerant patients who have already been receiving opioid therapy. Use this strength only for patients who have already been titrated to a stable analgesic regimen using lower strengths of oxycodone hydrochloride and who can benefit from use of a smaller volume of oral solution. Patients considered to be opioid tolerant are those who are receiving, for one week or longer, at least 60 mg oral morphine per day, 25 mcg transdermal fentanyl per hour, 30 mg oral oxycodone 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. Ensure accuracy when prescribing, dispensing, and administering Oxycodone Hydrochloride Oral Solution to avoid dosing errors due to confusion between mg and mL, and with other oxycodone hydrochloride solutions of different concentrations, which could result in accidental overdose and death. Ensure the proper dose is communicated and dispensed. When writing prescriptions, include both the total dose in mg and the total dose in volume. Instruct patients and caregivers on how to accurately measure and take or administer the correct dose of Oxycodone Hydrochloride Oral Solution. Strongly advise patients and caregivers to always use the enclosed graduated measuring cup when administering Oxycodone Hydrochloride Oral Solution 5 mg per 5 mL and always use the enclosed graduated oral syringe when administering Oxycodone Hydrochloride Oral Solution 100 mg per 5 mL (20 mg per mL) to ensure that the dose is measured and administered accurately. Instruct patients and caregivers to never use household teaspoons or tablespoons to measure Oxycodone Hydrochloride Oral Solution. • Oxycodone Hydrocodone Oral Solution should be prescribed only by healthcare professionals who are knowledgeable about the use of opioids and how to mitigate the associated risks. • Use the lowest effective dosage for the shortest duration of time consistent with individual patient treatment goals [see Warnings and Precautions (5)]. Because the risk of overdose increases as opioid doses increase, reserve titration to higher doses of Oxycodone Hydrochloride Oral Solution for patients in whom lower doses are insufficiently effective and in whom the expected benefits of using a higher dose opioid clearly outweigh the substantial risks. • Many acute pain conditions (e.g., the pain that occurs with a number of surgical procedures or acute musculoskeletal injuries) require no more than a few days of an opioid analgesic. Clinical guidelines on opioid prescribing for some acute pain conditions are available. • There is variability in the opioid analgesic dose and duration needed to adequately manage pain due both to the cause of pain and to individual patient factors. Initiate the dosing regimen for each patient individually, taking into account the patient’s underlying cause and severity of pain, prior analgesic treatment and response, and risk factors for addiction, abuse, and misuse [see Warnings and Precautions (5.2)]. • Respiratory depression can occur at any time during opioid therapy, especially when initiating and following dosage increases with Oxycodone Hydrochloride Oral Solution. Consider this risk when selecting an initial dose and when making dose adjustments [see Warnings and Precautions (5)]. 2.2 Patient Access to Naloxone for the Emergency Treatment of Opioid Overdose Discuss the availability of naloxone for the emergency treatment of opioid overdose with the patient and caregiver and assess the potential need for access to naloxone, both when initiating and renewing treatment with Oxycodone Hydrochloride Oral Solution [see Warnings and Precautions (5.3)]. Inform patients and caregivers about the various ways to obtain naloxone as permitted by individual state naloxone dispensing and prescribing requirements or guidelines (e.g., by prescription, directly from a pharmacist, or as part of a community-based program). Consider prescribing naloxone, based on the patient’s risk factors for overdose, such as concomitant use of CNS depressants, a history of opioid use disorder, or prior opioid overdose. The presence of risk factors for overdose should not prevent the proper management of pain in any given patient [see Warnings and Precautions (5.2, 5.3, 5.4)]. Consider prescribing naloxone if the patient has household members (including children) or other close contacts at risk for accidental ingestion or overdose. 2.3 Initial Dosage Although it is not possible to list every condition that is important to the selection of the initial dose of Oxycodone Hydrochloride Oral Solution, attention must be given to: 1. the daily dose, potency and characteristics of a full agonist or mixed agonist/antagonist the patient has been taking previously 2. the reliability of the relative potency estimate to calculate the dose of oxycodone HCl needed 3. the degree of opioid tolerance 4. the general condition and medical status of the patient, including the patient’s weight and age 5. the balance between pain management and adverse reactions 6. the type and severity of the patient’s pain 7. risk factors for abuse or addiction, including a prior history of abuse or addiction Use of Oxycodone Hydrochloride Oral Solution as the First Opioid Analgesic Do not initiate treatment with Oxycodone Hydrochloride Oral Solution 100 mg per 5 mL (20 mg per mL) in patients who are opioid naïve. Select an alternate product with lower concentration. Initiate treatment with Oxycodone Hydrochloride Oral Solution in a dosing range of 5 to 15 mg every 4 to 6 hours as needed for pain, and at the lowest dose necessary to achieve adequate analgesia. Titrate the dose based upon the individual patient’s response to their initial dose of Oxycodone Hydrochloride Oral Solution. Conversion from Other Opioids to Oxycodone Hydrochloride Oral Solution There is inter-patient variability in the potency of opioid drugs and opioid formulations. Therefore, a conservative approach is advised when determining the total daily dosage of Oxycodone Hydrochloride Oral Solution. It is safer to underestimate a patient’s 24-hour Oxycodone Hydrochloride Oral Solution dosage than to overestimate the 24-hour Oxycodone Hydrochloride Oral Solution dosage and manage an adverse reaction due to overdose. If a patient has been receiving opioid-containing medications prior to taking Oxycodone Hydrochloride Oral Solution, the potency of the prior opioid relative to oxycodone should be factored into the selection of the total daily dose (TDD) of oxycodone. In converting patients from other opioids to Oxycodone Hydrochloride Oral Solution close observation and adjustment of dosage based upon the patient’s response to Oxycodone Hydrochloride Oral Solution is imperative. Administration of supplemental analgesia for breakthrough or incident pain and titration of the total daily dose of Oxycodone Hydrochloride Oral Solution may be necessary, especially in patients who have disease states that are changing rapidly. Conversion from Oxycodone Hydrochloride Oral Solution to Extended-Release Oxycodone Hydrochloride The relative bioavailability of Oxycodone Hydrochloride Oral Solution compared to extended-release oxycodone is unknown, so conversion to extended-release may lead to increased risk of excessive sedation and respiratory depression. 2.4 Titration and Maintenance of Therapy Individually titrate Oxycodone Hydrochloride Oral Solution to a dose that provides adequate analgesia and minimizes adverse reactions. Continually reevaluate patients receiving Oxycodone Hydrochloride Oral Solution to assess the maintenance of pain control, signs and symptoms of opioid withdrawal, and other adverse reactions, as well as to reassess for the development of addiction, abuse, or misuse [see Warnings and Precautions (5.2, 5.15)]. Frequent communication is important among the prescriber, other members of the healthcare team, the patient, and the caregiver/family during periods of changing analgesic requirements, including initial titration. If the level of pain increases after dosage stabilization, attempt to identify the source of increased pain before increasing the Oxycodone Hydrochloride Oral Solution dosage. If after increasing the dosage, unacceptable opioid-related adverse reactions are observed (including an increase in pain after a dosage increase), consider reducing the dosage [see Warnings and Precautions (5)] . Adjust the dosage to obtain an appropriate balance between management of pain and opioid-related adverse reactions.

Oxycodone Hydrochloride Oral Solution is contraindicated in patients with: • Significant respiratory depression [see Warnings and Precautions (5.3)] • Acute or severe bronchial asthma in an unmonitored setting or in the absence of resuscitative equipment [see Warnings and Precautions (5.9)] • Known or suspected gastrointestinal obstruction, including paralytic ileus [see Warnings and Precautions (5.13)] • Hypersensitivity to oxycodone (e.g., angioedema) [see Adverse Reactions (6)] Significant respiratory depression. (4) Acute or severe bronchial asthma in an unmonitored setting in absence of resuscitative equipment. (4) Known or suspected gastrointestinal obstruction, including paralytic ileus. (4) Hypersensitivity to oxycodone. (4)

The following serious adverse reactions are described, or described in greater detail, in other sections: • Addiction, Abuse, and Misuse [see Warnings and Precautions (5.2)] • Life-Threatening Respiratory Depression [see Warnings and Precautions (5.3)] • Interactions with Benzodiazepines or Other CNS Depressants [see Warnings and Precautions (5.4)] • Neonatal Opioid Withdrawal Syndrome [see Warnings and Precautions (5.5)] • Opioid-Induced Hyperalgesia and Allodynia [see Warnings and Precautions (5.8)] • Adrenal Insufficiency [see Warnings and Precautions (5.10)] • Severe Hypotension [see Warnings and Precautions (5.11)] • Gastrointestinal Adverse Reactions [see Warnings and Precautions (5.13)] • Seizures [see Warnings and Precautions (5.14)] • Withdrawal [see Warnings and Precautions (5.15)] The following adverse reactions associated with the use of oxycodone were identified in clinical studies or postmarketing reports. Because some of these reactions were reported voluntarily from a population of uncertain size, it is not always possible to reliably estimate their frequency or establish a causal relationship to drug exposure. Serious adverse reactions associated with oxycodone use included: respiratory depression, respiratory arrest, circulatory depression, cardiac arrest, hypotension, and/or shock. The common adverse reactions seen on initiation of therapy with oxycodone are dose-related and are typical opioid-related adverse reactions. The most frequent adverse events include nausea, constipation, vomiting, headache, and pruritus. The frequency of these reactions depended on several factors, including clinical setting, the patient’s level of opioid tolerance, and host factors specific to the individual. In all patients for whom dosing information was available (n=191) from the open-label and double-blind studies involving another formulation of immediate-release oxycodone, the following adverse events were recorded in oxycodone treated patients with an incidence ≥ 3%. In descending order of frequency, they were: nausea, constipation, vomiting, headache, pruritus, insomnia, dizziness, asthenia, and somnolence. The other less frequently observed adverse reactions from opioid analgesics, including Oxycodone Hydrochloride Oral Solution included: Body as a Whole : abdominal pain, accidental injury, allergic reaction, back pain, chills and fever, fever, flu syndrome, infection, neck pain, pain, photosensitivity reaction, and sepsis. Cardiovascular : deep thrombophlebitis, heart failure, hemorrhage, hypotension, migraine, palpitation, and tachycardia. Digestive : anorexia, diarrhea, dyspepsia, dysphagia, gingivitis, glossitis, and nausea and vomiting. Hemic and Lymphatic : anemia and leukopenia. Metabolic and Nutritional : edema, gout, hyperglycemia, iron deficiency anemia and peripheral edema. Musculoskeletal : arthralgia, arthritis, bone pain, myalgia and pathological fracture. Nervous: agitation, anxiety, confusion, dry mouth, hypertonia, hypesthesia, nervousness, neuralgia, personality disorder, tremor, and vasodilation. Respiratory : bronchitis, cough increased, dyspnea, epistaxis, laryngismus, lung disorder, pharyngitis, rhinitis, and sinusitis. Skin and Appendages : herpes simplex, rash, sweating, and urticaria. Special Senses : amblyopia. Urogenital : urinary tract infection Serotonin syndrome : Cases of serotonin syndrome, a potentially life-threatening condition, have been reported during concomitant use of opioids with serotonergic drugs. Adrenal insufficiency : Cases of adrenal insufficiency have been reported with opioid use, more often following greater than one month of use. Anaphylaxis : Anaphylaxis has been reported with ingredients contained in Oxycodone Hydrochloride Oral Solution. Androgen deficiency : Cases of androgen deficiency have occurred with use of opioids for an extended period of time [see Clinical Pharmacology (12.2)]. Hyperalgesia and Allodynia : Cases of hyperalgesia and allodynia have been reported with opioid therapy of any duration [see Warnings and Precautions (5.8)]. Hypoglycemia : Cases of hypoglycemia have been reported in patients taking opioids. Most reports were in patients with at least one predisposing risk factor (e.g., diabetes). Most common adverse reactions are nausea, constipation, vomiting, headache, pruritus, insomnia, dizziness, asthenia, and somnolence. (6) To report SUSPECTED ADVERSE REACTIONS, contact KVK-Tech, Inc. at 1-800-862-3895 or FDA at 1-800-FDA-1088 or www.fda.gov.medwatch .

Table 1 includes clinically significant drug interactions with Oxycodone Hydrochloride Oral Solution. Table 1: Clinically Significant Drug Interactions with Oxycodone Hydrochloride Oral Solution Inhibitors of CYP3A4 and CYP2D6 Clinical Impact: The concomitant use of Oxycodone Hydrochloride Oral Solution and CYP3A4 inhibitors can increase the plasma concentration of oxycodone, resulting in increased or prolonged opioid effects. These effects could be more pronounced with concomitant use of Oxycodone Hydrochloride Oral Solution and CYP2D6 and CYP3A4 inhibitors, particularly when an inhibitor is added after a stable dose of Oxycodone Hydrochloride Oral Solution is achieved [see Warnings and Precautions (5.7)] . After stopping a CYP3A4 inhibitor, as the effects of the inhibitor decline, the oxycodone plasma concentration will decrease [see Clinical Pharmacology (12.3)] , resulting in decreased opioid efficacy or a withdrawal syndrome in patients who had developed physical dependence to oxycodone. Intervention: If concomitant use is necessary, consider dosage reduction of Oxycodone Hydrochloride Oral Solution until stable drug effects are achieved. Evaluate patients at frequent intervals for depression and sedation. If a CYP3A4 inhibitor is discontinued, consider increasing the Oxycodone Hydrochloride Oral Solution dosage until stable drug effects are achieved. Evaluate for signs of opioid withdrawal. Examples: Macrolide antibiotics (e.g., erythromycin), azole-antifungal agents (e.g. ketoconazole), protease inhibitors (e.g., ritonavir) CYP3A4 Inducers Clinical Impact: The concomitant use of Oxycodone Hydrochloride Oral Solution and CYP3A4inducers can decrease the plasma concentration of oxycodone [see Clinical Pharmacology (12.3)] , resulting in decreased efficacy or onset of a withdrawal syndrome in patients who have developed physical dependence to oxycodone [see Warnings and Precautions (5.1)] . After stopping a CYP3A4 inducer, as the effects of the inducer decline, the oxycodone plasma concentration will increase [see Clinical Pharmacology (12.3)] , which could increase or prolong both the therapeutic effects and adverse reactions, and may cause serious respiratory depression. Intervention: If concomitant use is necessary, consider increasing the Oxycodone Hydrochloride Oral Solution dosage until stable drug effects are achieved. Evaluate patients for signs of opioid withdrawal and sedation. If a CYP3A4 inducer is discontinued, consider Oxycodone Hydrochloride Oral Solution dosage reduction and evaluate patients at frequent intervals for signs of respiratory depression and sedation. Examples: Rifampin, carbamazepine, phenytoin Benzodiazepines and other Central Nervous System (CNS) Depressants Clinical Impact: Due to additive pharmacologic effect, the concomitant use of benzodiazepines or other CNS depressants including alcohol, can increases the risk of hypotension, respiratory depression, profound sedation, coma, and death. Intervention: Reserve concomitant prescribing of these drugs for use in patients for whom alternative treatment options are inadequate. Limit dosages and durations to the minimum required. Inform patients and caregivers of the potential interaction and educate them on the signs and symptoms of respiratory depression (including sedation). If concomitant use is warranted, consider prescribing naloxone for the emergency treatment of opioid overdose [see Dosage and Administration (2.2), Warnings and Precautions (5.2, 5.3, 5.4)]. Examples: Benzodiazepines and other sedatives/hypnotics, anxiolytics, tranquilizers, muscle relaxants, general anesthetics, antipsychotics, other opioids, alcohol. Serotonergic Drugs Clinical Impact: The concomitant use of opioids with other drugs that affect the serotonergic neurotransmitter system has resulted in serotonin syndrome. Intervention: If concomitant use is warranted, frequently reevaluate the patient, particularly during treatment initiation and dose adjustment. Discontinue Oxycodone Hydrochloride Oral Solution if serotonin syndrome is suspected. Examples: Selective serotonin reuptake inhibitors (SSRIs), serotonin and norepinephrine reuptake inhibitors (SNRIs), tricyclic antidepressants (TCAs), triptans, 5-HT3 receptor antagonists, drugs that affect the serotonin neurotransmitter system (e.g., mirtazapine, trazodone, tramadol), certain muscle relaxants (i.e., cyclobenzaprine, metaxalone), monoamine oxidase (MAO) inhibitors (those intended to treat psychiatric disorders and also others, such as linezolid and intravenous methylene blue). Monoamine Oxidase Inhibitors (MAOIs) Clinical Impact: MAOI interactions with opioids may manifest as serotonin syndrome or opioid toxicity (e.g., respiratory depression, coma) [see Warnings and Precautions ( 5.3 )]. Intervention: The use of Oxycodone Hydrochloride Oral Solution is not recommended for patients taking MAOIs or within 14 days of stopping such treatment. If urgent use of an opioid is necessary, use test doses and frequent titration of small doses to treat pain while closely monitoring blood pressure and signs and symptoms of CNS and respiratory depression. Examples: phenelzine, tranylcypromine, linezolid Mixed Agonist/Antagonist and Partial Agonist Opioid Analgesics Clinical Impact: May reduce the analgesic effect of Oxycodone Hydrochloride Oral Solution and/or precipitate withdrawal symptoms. Intervention: Avoid concomitant use. Examples butorphanol, nalbuphine, pentazocine, buprenorphine Muscle Relaxants Clinical Impact: Oxycodone may enhance the neuromuscular blocking action of skeletal muscle relaxants and produce an increased degree of respiratory depression. Intervention: Because respiratory depression that may be greater than otherwise expected, decrease the dosage of Oxycodone Hydrochloride Oral Solution and/or the muscle relaxant as necessary. Due to the risk of respiratory depression with concomitant use of skeletal muscle relaxants and opioids, consider prescribing naloxone for the emergency treatment of opioid overdose [see Dosage and Administration (2.2, Warnings and Precautions (5.3, 5.4)]. Diuretics Clinical Impact: Opioids can reduce the efficacy of diuretics by inducing the release of antidiuretic hormone. Intervention: Evaluate patients for signs of diminished diuresis and/or effects on blood pressure and increase the dosage of the diuretic as needed. Anticholinergic Drugs Clinical Impact: The concomitant use of anticholinergic drugs may increase risk of urinary retention and/or severe constipation, which may lead to paralytic ileus. Intervention: Evaluate patients for signs of urinary retention or reduced gastric motility when Oxycodone Hydrochloride Oral Solution is used concomitantly with anticholinergic drugs. Serotonergic Drugs: Concomitant use may result in serotonin syndrome. Discontinue Oxycodone Hydrochloride Oral Solution if serotonin syndrome is suspected. (7) Monoamine Oxidase Inhibitors (MAOIs): Can potentiate the effects of oxycodone. Avoid concomitant use in patients receiving MAOIs or within 14 days of stopping treatment with an MAOI. (7) Mixed Agonist/Antagonist and Partial Agonist Opioid Analgesics: Avoid use with Oxycodone Hydrochloride Oral Solution because they may reduce analgesic effect of Oxycodone Hydrochloride Oral Solution or precipitate withdrawal symptoms. (7)