BELLADONNA AND OPIUM

Each belladonna and opium suppository contains (in a water-soluble base consisting of polyethylene glycol 400, 1450, 8000 and polysorbate 60): Belladonna (16.2 mg) and Opium (30 mg): Powdered belladonna extract 16.2 mg and powdered opium 30 mg. Belladonna (16.2 mg) and Opium (60 mg): Powdered belladonna extract 16.2 mg and powdered opium 60 mg. This drug falls into the pharmacological/therapeutic class of narcotic analgesic/antispasmotic agents. The pharmacologically active principles present in the belladonna extract component of belladonna and opium suppositories are: Established Name: Atropine Chemical Name: dl Tropyl Tropate Established Name: Scopolamine Chemical Name: dl Scopolamine Opium contains more than twenty alkaloids, the principle ones being morphine (10%), narcotine (6%), papaverine (1%) and codeine (0.5%). The major pharmacologically active principle of the powdered opium component of belladonna and opium suppositories, however, is: Name: Morphine Chemical Name: 7, 8-Didehydro-4, 5-epoxy-17-Methyl-morphinan-3, 6-diol table 1 table 2 table 3

Belladonna and opium suppositories are indicated for the management of ureteral spasm pain severe enough to require an opioid analgesic and for which alternative treatments are inadequate. 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 belladonna and opium suppositories 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 Belladonna and opium suppositories are an opioid agonist indicated for the management of ureteral spasm 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 belladonna and opium suppositories 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, and prior analgesic experience, and risk factor for addiction, abuse, and misuse. ( 2.1 ) • 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 belladonna and opium suppositories. Consider prescribing naloxone based on the patient's risk factors for overdose. ( 2.2 , 5.1 , 5.2 , 5.4 ) • Initiate dosing with one suppository once or twice daily as needed for pain. ( 2.3 ) • Do not abruptly discontinue belladonna and opium suppositories in a physically-dependent patient because rapid discontinuation of opioid analgesics has resulted in serious withdrawal symptoms, uncontrolled pain, and suicide. ( 2.5 ) 2.1 Important Dosage and Administration Instructions Use the lowest effective dosage for the shortest duration consistent with individual patient treatment goals [see Warnings and Precautions ( 5 )] . 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 belladonna and opium suppositories and adjust the dosage accordingly [see Warnings and Precautions ( 5.2 )] . 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 belladonna and opium suppositories [see Warnings and Precautions ( 5.2 ), Patient Counseling Information ( 17 )] . 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 ( 5.1 , 5.2 , 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 Dosing One belladonna and opium suppository rectally once or twice daily, not to exceed four doses daily or as recommended by the physician. Moisten finger and suppository with water before inserting. Absorption is dependent on body hydration and not on body temperature. Not recommended for use in children 12 years of age and under. Conversion from Other Opioids to Belladonna and Opium Suppositories 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 belladonna and opium suppositories. It is safer to underestimate a patient’s 24-hour belladonna and opium suppositories dosage than to overestimate the 24-hour belladonna and opium suppositories dosage and manage an adverse reaction due to overdose. Conversion from Belladonna and Opium suppositories to Extended-Release Opioid The relative bioavailability of belladonna and opium suppositories compared to extended-release opioid is unknown, so conversion to extended-release drug product must be accompanied by close observation for signs of excessive sedation and respiratory depression. 2.4 Maintenance of Therapy Continually reevaluate patients receiving belladonna and opium suppositories 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 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 belladonna and opium suppositories dosage. 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. 2.5 Safe Reduction or Discontinuation of Belladonna and Opium Suppositories Do not abruptly discontinue belladonna and opium suppositories 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 belladonna and opium suppositories, there are a variety of factors that should be considered, including the dose of belladonna and opium suppositories 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 co-morbid 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 belladonna and opium suppositories 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 ( 5.12 ), Drug Abuse and Dependence ( 9.3 )] .

Belladonna and opium suppositories are 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 ( 5.5 )] • Concurrent use of monoamine oxidase inhibitors (MAOIs) or use of MAOIs within the last 14 days [see Warnings and Precautions ( 5.6 ), Drug Interactions ( 7 )] • Known or suspected gastrointestinal obstruction, including paralytic ileus [see Warnings and Precautions ( 5.10 )] • Hypersensitivity to opium or belladonna [see Adverse Events ( 6 )] • Glaucoma 2 • Severe hepatic or renal disease 2 • Narcotic idiosyncrasies 2 • Convulsive disorders 2 • Acute alcoholism 2 • Delirium tremens 2 • Premature labor 2 • 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 ) • Known hypersensitivity to opium or belladonna. ( 4 )

Belladonna may cause drowsiness, dry mouth, urinary retention, photophobia, rapid pulse, dizziness and blurred vision 7 . Opium usage may result in constipation, nausea or vomiting. Pruritis and urticaria may occasionally occur. Hypersensitivity to opium or belladonna may occur. 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 Benzodiazepines and Other CNS Depressants [see Warnings and Precautions ( 5.4 )] • Adrenal Insufficiency [see Warnings and Precautions ( 5.7 )] • Severe Hypotension [see Warnings and Precautions ( 5.8 )] • Gastrointestinal Adverse Reactions [see Warnings and Precautions ( 5.10 )] • Seizures [see Warnings and Precautions ( 5.11 )] • Withdrawal [see Warnings and Precautions ( 5.12 )] Most common adverse reactions are drowsiness, dry mouth, urinary retention, photophobia, rapid pulse, dizziness and blurred vision, constipation, nausea and vomiting. ( 6 ) To report SUSPECTED ADVERSE REACTIONS, contact Padagis ® at 1-866-634-9120 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch. 6.2 Postmarketing Experience The following adverse reactions have been identified during post-approval use of opioids. Because these reactions are 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. 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 products containing opioids. Androgen deficiency: Cases of androgen deficiency have occurred with chronic use of opioids.

Table 1 includes clinically significant drug interactions with belladonna and opium suppositories. Table 1: Clinically Significant Drug Interactions with Belladonna and Opium Suppositories 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. If concomitant use is warranted, consider prescribing naloxone for the emergency treatment of opioid overdose [see Dosage and Administration ( 2.2 ), Warnings and Precautions ( 5.1 , 5.2 , 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 belladonna and opium suppositories 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 effect 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 ( 5.2 )] 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. Intervention: The use of belladonna and opium suppositories is not recommended for patients taking MAOIs or within 14 days of stopping such treatment. Examples: phenelzine, tranylcypromine, linezolid Mixed Agonist/Antagonist and Partial Agonist Opioid Analgesics Clinical Impact: May reduce the analgesic effect of belladonna and opium suppositories and/or precipitate withdrawal symptoms. Intervention: Avoid concomitant use. Examples: butorphanol, nalbuphine, pentazocine, buprenorphine Muscle Relaxants Clinical Impact: Opium 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 belladonna and opium suppositories 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 ( 5.2 , 5.4 )] . 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 belladonna and opium suppositories are used concomitantly with anticholinergic drugs. • Serotonergic Drugs: Concomitant use may result in serotonin syndrome. Discontinue belladonna and opium suppositories if serotonin syndrome is suspected. ( 7 ) • Monoamine Oxidase Inhibitors (MAOIs): Can potentiate the effects of opium. 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 belladonna and opium suppositories because they may reduce analgesic effect of belladonna and opium suppositories or precipitate withdrawal symptoms. ( 7 )