• Hydromorphone Hydrochloride Injection [high potency formulation (HPF)] is an opioid agonist indicated for use in opioid-tolerant patients who require higher doses of opioids for the management of pain severe enough to require an opioid analgesic and for which alternate treatments are inadequate. (1)
• Patients considered opioid tolerant are those who are taking, for one week or longer, around-the-clock medicine consisting of at least 60 mg of oral morphine per day, at least 25 mcg/hr of transdermal fentanyl per hour, at least 30 mg of oral oxycodone per day, at least 8 mg of oral hydromorphone per day, at least 25 mg oral oxymorphone per day, at least 60 mg oral hydrocodone per day, or an equianalgesic dose of another opioid daily for a week or longer. Patients must remain on around-the-clock opioids when administering Hydromorphone Hydrochloride Injection [high potency formulation (HPF)]. (1)

Limitations of Use:

Because of the risks of addiction, abuse, and misuse with opioids, even at recommended doses, reserve Hydromorphone Hydrochloride Injection [high potency formulation (HPF)] 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 (1)

• Use the lowest effective dosage for the shortest duration consistent with individual patient treatment goals. Individualize dosing based on the severity of pain, patient response, prior analgesic experience, and risk factors for addiction, abuse, and misuse. (2.1)
• Initial Dosage:

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  Intramuscular or Subcutaneous Use: The usual starting dose is 1 mg to 2 mg every 2 to 3 hours as necessary. (2.2)

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  Intravenous Use: The usual starting dose is 0.2 mg to 1 mg every 2 to 3 hours. The injection should be given slowly, over at least 2 to 3 minutes. (2.2)

• Hydromorphone Hydrochloride Injection [high potency formulation (HPF)] is for opioid-tolerant patients only and should be used only if the amount of hydromorphone required can be delivered accurately with this formulation. (2.2)
• Hepatic Impairment: Initiate treatment with one-fourth to one-half the usual starting dose, depending on degree of hepatic impairment. (2.3)
• Renal Impairment: Initiate treatment with one-fourth to one-half the usual starting dose, depending on degree of renal impairment. (2.4)
• Do not stop Hydromorphone Hydrochloride Injection [high potency formulation (HPF)] abruptly in a physically-dependent patient. (2.6)

Hydromorphone Hydrochloride Injection, USP [high potency formulation (HPF)], 10 mg/mL available in 1 mL, 5 mL or 50 mL vials. (3)

• Significant respiratory depression. (4)
• Acute or severe bronchial asthma in an unmonitored setting or in the absence of resuscitative equipment. (4)
• Known or suspected gastrointestinal obstruction, including paralytic ileus. (4)
• Known hypersensitivity to hydromorphone, hydromorphone salts, or any other components of the product. (4)
• Hydromorphone Hydrochloride Injection [high potency formulation (HPF)]: Patients who are not opioid tolerant. (4)

• Life-Threatening Respiratory Depression in Patients With Chronic Pulmonary Disease or in Elderly, Cachectic, or Debilitated Patients: Monitor closely, particularly during initiation and titration. (5.6)
• Adrenal Insufficiency: If diagnosed, treat with physiologic replacement of corticosteroids, and wean patient off of the opioid. (5.7)
• Severe Hypotension: Monitor during dosage initiation and titration. Avoid use of Hydromorphone Hydrochloride Injection [high potency formulation (HPF)] in patients with circulatory shock. (5.8)
• Risks of Use in Patients With Increased Intracranial Pressure, Brain Tumors, Head Injury, or Impaired Consciousness: Monitor for sedation and respiratory depression. Avoid use of Hydromorphone Hydrochloride Injection [high potency formulation (HPF)] in patients with impaired consciousness or coma. (5.9)

Most common adverse reactions are lightheadedness, dizziness, sedation, nausea, vomiting, sweating, flushing, dysphoria, euphoria, dry mouth, and pruritus. (6)

To report SUSPECTED ADVERSE REACTIONS, contact Pfizer Inc. at 1-800-438-1985 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch.

• Serotonergic Drugs: Concomitant use may result in serotonin syndrome. Discontinue Hydromorphone Hydrochloride Injection [high potency formulation (HPF)] if serotonin syndrome is suspected. (7)
• Monoamine Oxidase Inhibitors (MAOIs): Can potentiate the effects of hydromorphone. 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 Hydromorphone Hydrochloride Injection [high potency formulation (HPF)] because they may reduce the analgesic effect of Hydromorphone Hydrochloride Injection [high potency formulation (HPF)] or precipitate withdrawal symptoms. (7)

Pregnancy: May cause fetal harm. (8.1)