Naldemedine
Generic Name: naldemedine
Brand Names:
Symproic
11 DESCRIPTION SYMPROIC (naldemedine), an opioid antagonist, contains naldemedine tosylate as the active ingredient. The chemical name for naldemedine tosylate is: 17-(cyclopropylmethyl)-6,7-didehydro-4,5α-epoxy-3,6,14-trihydroxy-N-[2-(3-phenyl-1,2,4-oxadiazol-5-yl)propan-2-yl]morphinan-7-carboxamide 4-methylbenzenesulfonic acid. The structural formula is: The empirical formula for naldemedine tosylate is C 32 H 34 N 4 O 6 ∙C 7 H 8 O 3 S and the molecular weight is 742.84.
Overview
11 DESCRIPTION SYMPROIC (naldemedine), an opioid antagonist, contains naldemedine tosylate as the active ingredient. The chemical name for naldemedine tosylate is: 17-(cyclopropylmethyl)-6,7-didehydro-4,5α-epoxy-3,6,14-trihydroxy-N-[2-(3-phenyl-1,2,4-oxadiazol-5-yl)propan-2-yl]morphinan-7-carboxamide 4-methylbenzenesulfonic acid. The structural formula is: The empirical formula for naldemedine tosylate is C 32 H 34 N 4 O 6 ∙C 7 H 8 O 3 S and the molecular weight is 742.84.
Uses
1 INDICATIONS AND USAGE SYMPROIC is indicated for the treatment of opioid-induced constipation (OIC) in adult patients with chronic non-cancer pain, including patients with chronic pain related to prior cancer or its treatment who do not require frequent (e.g., weekly) opioid dosage escalation. SYMPROIC is an opioid antagonist indicated for the treatment of opioid-induced constipation (OIC) in adult patients with chronic non-cancer pain, including patients with chronic pain related to prior cancer or its treatment who do not require frequent (e.g., weekly) opioid dosage escalation ( 1 )
Dosage
2 DOSAGE AND ADMINISTRATION Administration ( 2.1 ) : Alteration of analgesic dosing regimen prior to initiating SYMPROIC is not required Patients receiving opioids for less than 4 weeks may be less responsive to SYMPROIC Discontinue SYMPROIC if treatment with the opioid pain medication is also discontinued Dosage ( 2.2 ) : In adults, the recommended dosage is 0.2 mg once daily with or without food 2.1 Administration Alteration of analgesic dosing regimen prior to initiating SYMPROIC is not required. Patients receiving opioids for less than 4 weeks may be less responsive to SYMPROIC [see Clinical Studies (14) ] . Discontinue SYMPROIC if treatment with the opioid pain medication is also discontinued.
Side Effects
6 ADVERSE REACTIONS Serious and important adverse reactions described elsewhere in labeling include: Gastrointestinal perforation [see Warnings and Precautions (5.1) ] Opioid withdrawal [see Warnings and Precautions (5.2) ] Most common adverse reactions (≥2%) are: abdominal pain, diarrhea, nausea and gastroenteritis ( 6.1 ) To report SUSPECTED ADVERSE REACTIONS, contact BioDelivery Sciences International, Inc. at 1-800-469-0261 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch . 6.1 Clinical Trials Experience Because clinical trials are conducted under widely varying conditions, adverse reaction rates observed in the clinical trials of a drug cannot be directly compared to rates in the clinical trials of another drug and may not reflect the rates observed in practice.
Interactions
7 DRUG INTERACTIONS Table 3 includes drugs with clinically important drug interactions with SYMPROIC and instructions for preventing or managing the interaction. Table 3: Clinically Relevant Interactions Affecting Naldemedine When Co-Administered with Other Drugs Strong CYP3A Inducers (e.g., rifampin, carbamazepine, phenytoin, St. John's Wort) Clinical Impact Significant decrease in plasma naldemedine concentrations, which may reduce efficacy [see Clinical Pharmacology (12.3) ] Intervention Avoid use of SYMPROIC with strong CYP3A inducers. Other Opioid Antagonists Clinical Impact Potential for additive effect of opioid receptor antagonism and increased risk of opioid withdrawal. Intervention Avoid use of SYMPROIC with another opioid antagonist.
Warnings
5 WARNINGS AND PRECAUTIONS Gastrointestinal perforation : Consider the overall risk benefit in patients with known or suspected lesions of the GI tract. Monitor for severe, persistent, or worsening abdominal pain; discontinue if development of symptoms ( 5.1 ) Opioid withdrawal : Consider the overall risk benefit in patients with disruptions to the blood-brain barrier. Monitor symptoms of opioid withdrawal ( 5.2 ) 5.1 Gastrointestinal Perforation Cases of gastrointestinal (GI) perforation have been reported with use of another peripherally acting opioid antagonist, including SYMPROIC. 4 CONTRAINDICATIONS SYMPROIC is contraindicated in: Patients with known or suspected gastrointestinal obstruction and patients at increased risk of recurrent obstruction, due to the potential for gastrointestinal perforation [see Warnings and Precautions (5.1) ]. Patients with a history of a hypersensitivity reaction to naldemedine.
Pregnancy
8.1 Pregnancy Risk Summary There are no available data with naldemedine in pregnant women to inform a drug-associated risk of major birth defects and miscarriage. There is a potential for opioid withdrawal in a fetus when SYMPROIC is used in pregnant women [see Clinical Considerations ]. SYMPROIC should be used during pregnancy only if the potential benefit justifies the potential risk.
Storage
Store SYMPROIC in a light resistant container at 20°C to 25°C (68°F to 77°F); excursions permitted between 15°C and 30°C (59°F and 86°F) [see USP Controlled Room Temperature].
Frequently Asked Questions
What is Naldemedine used for?▼
1 INDICATIONS AND USAGE SYMPROIC is indicated for the treatment of opioid-induced constipation (OIC) in adult patients with chronic non-cancer pain, including patients with chronic pain related to prior cancer or its treatment who do not require frequent (e.g., weekly) opioid dosage escalation. SYMPROIC is an opioid antagonist indicated for the treatment of opioid-induced constipation (OIC) in adult patients with chronic non-cancer pain, including patients with chronic pain related to prior cancer or its treatment who do not require frequent (e.g., weekly) opioid dosage escalation ( 1 )
What are the side effects of Naldemedine?▼
6 ADVERSE REACTIONS Serious and important adverse reactions described elsewhere in labeling include: Gastrointestinal perforation [see Warnings and Precautions (5.1) ] Opioid withdrawal [see Warnings and Precautions (5.2) ] Most common adverse reactions (≥2%) are: abdominal pain, diarrhea, nausea and gastroenteritis ( 6.1 ) To report SUSPECTED ADVERSE REACTIONS, contact BioDelivery Sciences International, Inc. at 1-800-469-0261 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch . 6.1 Clinical Trials Experience Because clinical trials are conducted under widely varying conditions, adverse reaction rates observed in the clinical trials of a drug cannot be directly compared to rates in the clinical trials of another drug and may not reflect the rates observed in practice.
Can I take Naldemedine during pregnancy?▼
8.1 Pregnancy Risk Summary There are no available data with naldemedine in pregnant women to inform a drug-associated risk of major birth defects and miscarriage. There is a potential for opioid withdrawal in a fetus when SYMPROIC is used in pregnant women [see Clinical Considerations ]. SYMPROIC should be used during pregnancy only if the potential benefit justifies the potential risk.
What are the important warnings for Naldemedine?▼
5 WARNINGS AND PRECAUTIONS Gastrointestinal perforation : Consider the overall risk benefit in patients with known or suspected lesions of the GI tract. Monitor for severe, persistent, or worsening abdominal pain; discontinue if development of symptoms ( 5.1 ) Opioid withdrawal : Consider the overall risk benefit in patients with disruptions to the blood-brain barrier. Monitor symptoms of opioid withdrawal ( 5.2 ) 5.1 Gastrointestinal Perforation Cases of gastrointestinal (GI) perforation have been reported with use of another peripherally acting opioid antagonist, including SYMPROIC. 4 CONTRAINDICATIONS SYMPROIC is contraindicated in: Patients with known or suspected gastrointestinal obstruction and patients at increased risk of recurrent obstruction, due to the potential for gastrointestinal perforation [see Warnings and Precautions (5.1) ]. Patients with a history of a hypersensitivity reaction to naldemedine.
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Medical Disclaimer
This drug information is for educational purposes only and should not replace professional medical advice. Drug information is sourced from the FDA National Drug Code Directory and Structured Product Labeling. Always consult with a healthcare provider before starting, stopping, or changing any medication.