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Use the lowest effective dosage for the shortest duration consistent with individual patient treatment goals ( 2.1 ). 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 ( 2.1 ). Monitor patients closely for respiratory depression, especially within the first 24–72 hours of initiating therapy and following dosage increases with tramadol hydrochloride oral solution and adjust the dosage accordingly ( 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 tramadol hydrochloride oral solution. Consider prescribing naloxone based on the patient’s risk factors for overdose [ 2.2 , 5.2 , 5.4 , 5.8 ]. Start at 25 mg /day and titrate in 25 mg increments as separate doses every 3 days to reach 100 mg /day (25 mg four times a day). Thereafter the total daily dose may be increased by 50 mg as tolerated every 3 days to reach 200 mg /day (50 mg four times a day). After titration, tramadol hydrochloride oral solution 50 mg to 100 mg can be administered as needed for pain relief every 4 to 6 hours not to exceed 400 mg /day ( 2.3 , 2.4 ). Severe hepatic impairment : Recommended dose is 50 mg every 12 hours ( 2.3…

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 ( 5.4 )] Ultra-Rapid Metabolism of Tramadol and Other Risk Factors for Life-threatening Respiratory Depression in Children [see Warnings and Precautions ( 5.5 )] Neonatal Opioid Withdrawal Syndrome [see Warnings and Precautions ( 5.6 )] Interactions with Benzodiazepines or Other CNS Depressants [see Warnings and Precautions ( 5.8 )] Serotonin Syndrome [see Warnings and Precautions ( 5.9 )] Seizures [see Warnings and Precautions ( 5.10 )] Suicide [see Warnings and Precautions ( 5.11 )] Adrenal Insufficiency [see Warnings and Precautions ( 5.12 )] Severe Hypotension [see Warnings and Precautions ( 5.14 )] Gastrointestinal Adverse Reactions [see Warnings and Precautions ( 5.16 )] Hypersensitivity Reactions [see Warnings and Precautions ( 5.17 )] Withdrawal [see Warnings and Precautions ( 5.18 )] The most common incidence of treatment-emergent adverse events (≥15.0%) in patients from clinical trials were dizziness/vertigo, nausea, constipation, headache, somnolence, vomiting and pruritus ( 6 ). To report SUSPECTED ADVERSE REACTIONS, contact TruPharma, LLC at 1-877-541-5504 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch . 6.1 Clinical…

Tramadol hydrochloride oral solution is contraindicated for: all children younger than 12 years of age [see Warnings and Precautions ( 5.5 )] . postoperative management in children younger than 18 years of age following tonsillectomy and/or adenoidectomy [see Warnings and Precautions ( 5.5 )] . Tramadol hydrochloride oral solution is also contraindicated in patients with: Significant respiratory depression [see Warnings and Precautions ( 5.4 )] . Acute or severe bronchial asthma in an unmonitored setting or in the absence of resuscitative equipment [see Warnings and Precautions ( 5.13 )] . Known or suspected gastrointestinal obstruction, including paralytic ileus [see Warnings and Precautions ( 5.16 )] . Hypersensitivity to tramadol, any other component of this product or opioids [see Warnings and Precautions ( 5.17 )] . Concurrent use of monoamine oxidase inhibitors (MAOIs) or use within the last 14 days [see Drug Interactions ( 7 )] . Children younger than 12 years of age ( 4 ). Postoperative management in children younger than 18 years of age following tonsillectomy and/or adenoidectomy ( 4 ). 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 ). Hypersensitivity to tramadol, any other component of this product or opioids ( 4 ). Concurrent use of monoamine oxidase inhibitors (MAOIs) or use of MAOIs within the last 14 days ( 4 ).

Clinical Presentation Acute overdosage with tramadol hydrochloride oral solution can be manifested by respiratory depression, somnolence progressing to stupor or coma, skeletal muscle flaccidity, cold and clammy skin, constricted pupils, and, in some cases, pulmonary edema, bradycardia, QT prolongation, hypotension, partial or complete airway obstruction, atypical snoring, seizures, and death. Marked mydriasis rather than miosis may be seen with hypoxia in overdose situations. Deaths due to overdose have been reported with abuse and misuse of tramadol [see Warnings and Precautions ( 5.2 ), Drug Abuse and Dependence ( 9.2 )] . Review of case reports has indicated that the risk of fatal overdose is further increased when tramadol is abused concurrently with alcohol or other CNS depressants, including other opioids. Treatment of Overdose In case of overdose, priorities are the re-establishment of a patent and protected airway and institution of assisted or controlled ventilation, if needed. Employ other supportive measures (including oxygen and vasopressors) in the management of circulatory shock and pulmonary edema as indicated. Cardiac arrest or serious arrhythmias will require advanced life-supporting measures. Opioid antagonists, such as naloxone, are specific antidotes to respiratory depression resulting from opioid overdose. For clinically significant respiratory or…

U.S. Poison Control: call or text 1-800-222-1222 (free, 24/7). In an emergency call 911. From the FDA label; not medical advice.

Table 2: Clinically Significant Drug Interactions with tramadol hydrochloride oral solution Inhibitors of CYP2D6 Clinical Impact: The concomitant use of tramadol hydrochloride oral solution and CYP2D6 inhibitors may result in an increase in the plasma concentration of tramadol and a decrease in the plasma concentration of M1, particularly when an inhibitor is added after a stable dose of tramadol hydrochloride oral solution is achieved. Since M1 is a more potent µ-opioid agonist, decreased M1 exposure could result in decreased therapeutic effects, and may result in signs and symptoms of opioid withdrawal in patients who had developed physical dependence to tramadol. Increased tramadol exposure can result in increased or prolonged therapeutic effects and increased risk for serious adverse events including seizures and serotonin syndrome. After stopping a CYP2D6 inhibitor, as the effects of the inhibitor decline, the tramadol plasma concentration will decrease and the M1 plasma concentration will increase. This could increase or prolong therapeutic effects but also increase adverse reactions related to opioid toxicity, such as potentially fatal respiratory depression [see Clinical Pharmacology ( 12.3 )] . Intervention: If concomitant use of a CYP2D6 inhibitor is necessary, follow patients closely for adverse reactions including opioid withdrawal, seizures and serotonin syndrome. If a CYP2D6 inhibitor is discontinued, consider lowering tramadol hydrochloride oral solution dosage until stable drug effects are achieved. Follow patients closely for adverse events including respiratory depression and sedation. Examples: Quinidine, fluoxetine, paroxetine and bupropion Inhibitors of CYP3A4 Clinical Impact: The concomitant use of tramadol hydrochloride oral solution and CYP3A4 inhibitors can increase the plasma concentration of tramadol and may result in a greater amount of metabolism via CYP2D6 and greater levels of M1. Follow patients closely for increased risk of serious adverse events including seizures and serotonin syndrome, and adverse reactions related to opioid toxicity including potentially fatal respiratory depression, particularly when an inhibitor is added after a stable dose of tramadol hydrochloride oral solution is achieved. After stopping a CYP3A4 inhibitor, as the effects of the inhibitor decline, the tramadol 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 tramadol. Intervention: If concomitant use is necessary, consider dosage reduction of tramadol hydrochloride oral solution until stable drug effects are achieved. Follow patients closely for seizures and serotonin syndrome, and signs of respiratory depression and sedation at frequent intervals. If a CYP3A4 inhibitor is discontinued, consider increasing the tramadol hydrochloride oral solution dosage until stable drug effects are achieved and follow patients for signs and symptoms 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 tramadol hydrochloride oral solution and CYP3A4 inducers can decrease the plasma concentration of tramadol [see Clinical Pharmacology ( 12.3 )] , resulting in decreased efficacy or onset of a withdrawal syndrome in patients who have developed physical dependence to tramadol. After stopping a CYP3A4 inducer, as the effects of the inducer decline, the tramadol plasma concentration will increase [see Clinical Pharmacology ( 12.3 )] , which could increase or prolong both the therapeutic effects and adverse reactions, and may cause seizures, serotonin syndrome, and/or potentially fatal respiratory depression. Intervention: If concomitant use is necessary, consider increasing the tramadol hydrochloride oral solution dosage until stable drug effects are achieved. Follow patients for signs of opioid withdrawal. If a CYP3A4 inducer is discontinued, consider tramadol hydrochloride oral solution dosage reduction and monitor for seizures and serotonin syndrome, and signs of sedation and respiratory depression. Patients taking carbamazepine, a CYP3A4 inducer, may have a significantly reduced analgesic effect of tramadol. Because carbamazepine increases tramadol metabolism and because of the seizure risk associated with tramadol, concomitant administration of tramadol hydrochloride oral solution and carbamazepine is not recommended. 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, increases the risk of 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 ( 5.2 , 5.4 , 5.8 )] . Examples: Benzodiazepines and other sedatives/hypnotics, anxiolytics, tranquilizers, muscle relaxants, general anesthetics, antipsychotics, other opioids, and 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 tramadol hydrochloride oral solution immediately 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 [see Warnings and Precautions ( 5.9 )] or opioid toxicity (e.g., respiratory depression, coma) [see Warnings and Precautions ( 5.4 )] . Intervention: Do not use tramadol hydrochloride oral solution in 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 tramadol hydrochloride oral solution and/or precipitate withdrawal symptoms. Intervention: Avoid concomitant use. Examples: butorphanol, nalbuphine, pentazocine, buprenorphine Muscle Relaxants Clinical Impact: Tramadol 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 tramadol 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 ( 5.4 , 5.8 )] . 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 tramadol hydrochloride oral solution is used concomitantly with anticholinergic drugs. Digoxin Clinical Impact: Postmarketing surveillance of tramadol has revealed rare reports of digoxin toxicity. Intervention: Follow patients for signs of digoxin toxicity and adjust dosage of digoxin as needed. Warfarin Clinical Impact: Postmarketing surveillance of tramadol has revealed rare reports of alteration of warfarin effect, including elevation of prothrombin times. Intervention: Monitor the prothrombin time of patients on warfarin for signs of an interaction and adjust the dosage of warfarin as needed. Mixed Agonist/Antagonist and Partial Agonist Opioid Analgesics: Avoid use with tramadol hydrochloride oral solution because they may reduce analgesic effect of tramadol hydrochloride oral solution or precipitate withdrawal symptoms ( 7).