MORPHINE SULFATE

Morphine sulfate is an opioid agonist. Morphine Sulfate Injection USP is available as a sterile, nonpyrogenic solution of morphine sulfate, free of antioxidants and preservatives in single-dose prefilled syringes for intravenous and intramuscular administration. The chemical name for Morphine sulfate is 7,8-Didehydro-4,5-epoxy-17-methyl-(5α,6α)-morphinan-3,6 α -diol sulfate (2: 1) (salt), pentahydrate. The molecular weight is 758.83. Its molecular formula is (C 17 H 19 NO 3 ) 2 • H 2 SO 4 • 5H 2 O and it has the following chemical structure. Morphine sulfate is a fine white powder. When exposed to air it gradually loses water of hydration, and darkens on prolonged exposure to light. It is soluble in water and ethanol at room temperature. Each 1 mL single-dose pre-filled syringe contains 2 mg (equivalent to 1.75 mg Morphine), 4 mg (equivalent to 3.50 mg Morphine), 5 mg (equivalent to 4.37 mg Morphine), 8 mg (equivalent to 6.99 mg Morphine) or 10 mg (equivalent to 8.73 mg Morphine) of Morphine Sulfate USP in 1 mL total volume of water for injection solution with inactive ingredients. The inactive ingredients in Morphine Sulfate Injection, USP include: • For the 2 mg/mL and 4 mg/mL products: 8.4 mg sodium chloride, 2.3 mg of sodium citrate, 0.74 mg of citric acid, 0.111 mg of edetate disodium, 0.053 mg of calcium chloride and water for injection. • For the 5 mg/mL, 8 mg/mL and 10 mg/mL products: 7.5 mg sodium chloride, 3.45 mg of sodium citrate, 1.11 mg of citric acid, 0.111 mg of edetate disodium, 0.053 mg of calcium chloride and water for injection. Chemical Structure

Morphine Sulfate Injection is indicated for the management of pain severe enough to require an opioid analgesic and for which alternative treatments are inadequate. Morphine Sulfate Injection is an opioid agonist indicated for the management of pain severe enough to require an opioid analgesic and for which alternative treatments are inadequate. ( 1 ) Limitations of Use ( 1 ) Because of the risks of addiction, abuse, and misuse with opioids, even at recommended doses, reserve Morphine Sulfate Injection, 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 Limitations of Use Because of the risks of addiction, abuse, and misuse with opioids, even at recommended doses [see Warnings and Precautions ( 5.1 )] , reserve Morphine Sulfate Injection 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

• Use the lowest effective dosage for the shortest duration consistent with individual patient treatment goals. ( 2.1 ) • Individualize dosing based on the severity of pain, patient response, prior analgesic experience, and risk factors for addiction, abuse, and misuse. ( 2.1 ) • Direct Intravenous Injection: Initiate treatment with 0.1 mg to 0.2 mg per kg every 4 hours as needed to manage pain. ( 2.2 ) • Intramuscular Injection: Initiate treatment with 10 mg, every 4 hours as needed to manage pain (based on a 70 kg adult). ( 2.2 ) • Do not stop Morphine Sulfate Injection abruptly in a physically dependent patient. ( 2.4 ) 2.1 Important Dosage and Administration Instructions Morphine Sulfate Injection is intended for intravenous and intramuscular administration. Morphine Sulfate Injection is available in five concentrations for direct injection. Dosing errors can result in accidental overdose and death. Avoid dosing errors that may result from confusion between mg and mL and confusion with morphine injections of different concentrations when prescribing, dispensing, and administering Morphine Sulfate Injection. Ensure that the dose is communicated and dispensed accurately. Use the lowest effective dosage for the shortest duration consistent with individual patient treatment goals [see Warnings and Precautions ( 5.1 )]. 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 Morphine Sulfate Injection and adjust the dosage accordingly [see Warnings and Precautions ( 5.2 )]. Administration of Morphine Sulfate Injection should be limited to use by those familiar with the management of respiratory depression. Morphine must be injected slowly; rapid intravenous administration may result in chest wall rigidity. Inspect Morphine Sulfate Injection for particulate matter and discoloration prior to administration. 2.2 Initial Dosage Direct Intravenous Injection The usual starting dose in adults is 0.1 mg to 0.2 mg per kg every 4 hours as needed to manage pain. Administer the injection slowly. Intramuscular Injection The initial IM dose is 10 mg every 4 hours as needed to manage pain (based on a 70 kg adult). 2.3 Titration and Maintenance of Therapy Individually titrate Morphine Sulfate Injection to a dose that provides adequate analgesia and minimizes adverse reactions. Continually reevaluate patients receiving Morphine Sulfate Injection 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 )] . If unacceptable opioid-related adverse reactions are observed, consider reducing the dosage. Adjust the dosage to obtain an appropriate balance between management of pain and opioid-related adverse reactions. 2.4 Discontinuation of Morphine Sulfate Injection When a patient who has been taking Morphine Sulfate Injection regularly and may be physically dependent or no longer requires therapy with Morphine Sulfate Injection, taper the dose gradually, by 25% to 50% every 2 to 4 days, while monitoring carefully for signs and symptoms of withdrawal. If the patient develops these signs or symptoms, raise the dose to the previous level and taper more slowly, either by increasing the interval between decreases, decreasing the amount of change in dose, or both. Do not abruptly discontinue Morphine Sulfate Injection in a physically dependent patient [see Warnings and Precautions ( 5.13 ), Drug Abuse and Dependence ( 9.3 )] .

Morphine Sulfate Injection is contraindicated in patients with: • Significant respiratory depression [see Warnings and Precautions ( 5.2 )] • Acute or severe bronchial asthma in an unmonitored setting or in the absence of resuscitative equipment [see Warnings and Precautions ( 5.6 )] • Concurrent use of monoamine oxidase inhibitors (MAOIs) or use of MAOIs within the last 14 days [see Warnings and Precautions ( 5.7 )] . • Known or suspected gastrointestinal obstruction, including paralytic ileus [see Warnings and Precautions ( 5.11 )] • Hypersensitivity to morphine (e.g., anaphylaxis) [see Adverse Reactions ( 6 )] • Significant respiratory depression. ( 4 ) • Acute or severe bronchial asthma in an unmonitored setting or in absence of resuscitative equipment. ( 4 ) • Concurrent use of monoamine oxidase inhibitors (MAOIs) or use of MAOIs within the last 14 days ( 4 ) • Known or suspected gastrointestinal obstruction, including paralytic ileus. ( 4 ) • Hypersensitivity to morphine. ( 4 )

The following serious adverse reactions are described, or described in greater detail, in other sections: • Addiction, Abuse, and Misuse [see Warnings and Precautions ( 5.1 )] • Life-Threatening Respiratory Depression [see Warnings and Precautions ( 5.2 )] • Neonatal Opioid Withdrawal Syndrome [see Warnings and Precautions ( 5.3 )] • Interactions with Benzodiazepine or Other CNS Depressants [see Warnings and Precautions ( 5.4 )] • Cardiovascular Instability [see Warnings and Precautions ( 5.5 )] • Adrenal Insufficiency [see Warnings and Precautions ( 5.8 )] • Severe Hypotension [see Warnings and Precautions ( 5.9 )] • Gastrointestinal Adverse Reactions [see Warnings and Precautions ( 5.11 )] • Seizures [see Warnings and Precautions ( 5.12 )] • Withdrawal [see Warnings and Precautions ( 5.13 )] The following adverse reactions associated with the use of morphine 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 Morphine Sulfate Injection included, respiratory depression, apnea, and to a lesser degree, circulatory depression, respiratory arrest, shock and cardiac arrest. Rarely, anaphylactoid reactions have been reported when morphine or other phenanthrene alkaloids of opium are administered intravenously. The most frequently observed adverse reactions included sedation, lightheadedness, dizziness, nausea, vomiting, constipation and diaphoresis. Other possible adverse reactions include: Central Nervous System – Euphoria, dysphoria, weakness, headache, agitation, tremor, uncoordinated muscle movements, visual disturbances, transient hallucinations and disorientation. Gastrointestinal – Constipation, biliary tract spasm. Cardiovascular – Tachycardia, bradycardia, palpitation, faintness, syncope and orthostatic hypotension. Genitourinary – Oliguria and urinary retention; an antidiuretic effect has been reported. Allergic – Pruritus, urticaria and skin rashes. Anaphylactoid reactions have been reported following intravenous administration. Other – Opioid-induced histamine release may be responsible for the flushing of the face, diaphoresis and pruritus often seen with these drugs. Wheals and urticaria at the site of injection are probably related to histamine release. Local tissue irritation, pain and induration have been reported following repeated subcutaneous injection. Androgen deficiency: Cases of androgen deficiency have occurred with chronic use of opioids [see Clinical Pharmacology ( 12.2 )] . Anaphylaxis: Anaphylaxis has been reported with ingredients contained in Morphine Sulfate Injection. 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. The most serious adverse reactions encountered are respiratory depression, apnea, circulatory depression, respiratory arrest, shock and cardiac arrest. Other common frequently observed adverse reactions include: sedation, lightheadedness, dizziness, nausea, vomiting, constipation and diaphoresis. ( 6 ) To report SUSPECTED ADVERSE REACTIONS, contact Fresenius Kabi USA, LLC at 1-800-551-7176 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch

Table 1 includes clinically significant drug interactions with Morphine Sulfate Injection. Table 1: Clinically Significant Drug Interactions with Morphine Sulfate Injection 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 increase 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. Follow patients closely for signs of respiratory depression and sedation [see Warnings and Precautions ( 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, carefully observe the patient, particularly during treatment initiation and dose adjustment. Discontinue Morphine Sulfate Injection 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), 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 ( 5.7 )]. Intervention: Do not use Morphine Sulfate Injection in 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 of other opioids (such as oxycodone, hydrocodone, oxymorphone, or buprenorphine) 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 Morphine Sulfate Injection and/or precipitate withdrawal symptoms. Intervention: Avoid concomitant use. Examples: butorphanol, nalbuphine, pentazocine, buprenorphine. Muscle Relaxants Clinical Impact: Morphine may enhance the neuromuscular blocking action of skeletal muscle relaxants and produce an increased degree of respiratory depression. Intervention: Monitor patients for signs of respiratory depression that may be greater than otherwise expected and decrease the dosage of Morphine Sulfate Injection and/or the muscle relaxant as necessary. Cimetidine Clinical Impact: The concomitant administration of morphine sulfate and cimetidine has been reported to precipitate apnea, confusion and muscle twitching in an isolated report. Intervention: Monitor patients for increased respiratory and CNS depression when receiving cimetidine concomitantly with Morphine Sulfate Injection. Diuretics Clinical Impact: Opioids can reduce the efficacy of diuretics by inducing the release of antidiuretic hormone. Intervention: Monitor 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: Monitor patients for signs of urinary retention or reduced gastric motility when Morphine Sulfate Injection is used concomitantly with anticholinergic drugs. Oral P2Y 12 Inhibitors Clinical Impact: The co-administration of oral P2Y 12 inhibitors and intravenous morphine sulfate can decrease the absorption and peak concentration of oral P2Y 12 inhibitors and delay the antiplatelet effect. Intervention: Consider the use of a parenteral antiplatelet agent in the setting of acute coronary syndrome requiring coadministration of intravenous morphine sulfate. Examples: clopidogrel, prasugrel, ticagrelor • Serotonergic Drugs: Concomitant use may result in serotonin syndrome. Discontinue Morphine Sulfate Injection if serotonin syndrome is suspected. ( 7 ) • Mixed Agonist/Antagonist and Partial Agonist Opioid Analgesics: Avoid use with Morphine Sulfate Injection because they may reduce analgesic effect of Morphine Sulfate Injection or precipitate withdrawal symptoms. ( 7 )