Fexinidazole
Generic Name: fexinidazole
Brand Names:
Fexinidazole
11 DESCRIPTION Fexinidazole Tablets contain fexinidazole, a nitroimidazole antimicrobial drug for oral use. The chemical name of fexinidazole is 1-methyl-2-{[4-(methylthio)phenoxy]methyl}-5-nitro-1H-imidazole. Its molecular formula is C 12 H 13 N 3 O 3 S and the molecular weight is 279.3 g/mol. The structural formula is: Fexinidazole is a yellow powder.
Overview
11 DESCRIPTION Fexinidazole Tablets contain fexinidazole, a nitroimidazole antimicrobial drug for oral use. The chemical name of fexinidazole is 1-methyl-2-{[4-(methylthio)phenoxy]methyl}-5-nitro-1H-imidazole. Its molecular formula is C 12 H 13 N 3 O 3 S and the molecular weight is 279.3 g/mol. The structural formula is: Fexinidazole is a yellow powder.
Uses
1 INDICATIONS AND USAGE Fexinidazole Tablets are indicated for the treatment of both the first-stage (hemolymphatic) and second-stage (meningoencephalitic) human African trypanosomiasis (HAT) due to Trypanosoma brucei gambiense in patients 6 years of age and older and weighing at least 20 kg. Fexinidazole Tablets is a nitroimidazole antimicrobial, indicated for the treatment of both first-stage (hemolymphatic) and second-stage (meningoencephalitic) human African trypanosomiasis (HAT) due to Trypanosoma brucei gambiense in patients 6 years of age and older and weighing at least 20 kg. ( 1 ) Limitations of Use Due to the decreased efficacy observed in patients with severe second stage HAT (cerebrospinal fluid white blood cell count (CSF-WBC) >100 cells/µL) due to T.
Dosage
2 DOSAGE AND ADMINISTRATION Administer Fexinidazole Tablets once daily with food each day at about the same time of the day. Do not break or crush tablets. ( 2.1 , 2.2 ) Recommended Dosage of Fexinidazole Tablets in Patients 6 years of age and older and weighing at least 20 kg ( 2.2 ) Body Weight Type of Dose Daily Dose Number of Tablets Duration of Treatment Greater than or equal to 35 kg Loading dose 1,800 mg 3 4 days Maintenance dose 1,200 mg 2 6 days Greater than or equal to 20 kg to less than 35 kg Loading dose 1,200 mg 2 4 days Maintenance dose 600 mg 1 6 days 2.1 Important Administration Instructions Patients should be closely followed by their healthcare provider during treatment with Fexinidazole Tablets.
Side Effects
6 ADVERSE REACTIONS The following serious and otherwise important adverse reactions are discussed in greater detail in other sections of labeling: Decreased Efficacy in Severe Human African Trypanosomiasis Caused by Trypanosoma brucei gambiense [see Warnings and Precautions (5.1) ] QT Interval Prolongation [see Warnings and Precautions (5.2) ] Neuropsychiatric Adverse Reactions [see Warnings and Precautions (5.3) ] Neutropenia [see Warnings and Precautions (5.4) ] Potential for Hepatotoxicity [see Warnings and Precautions (5.5) ] Most common adverse reactions (incidence >10%) are headache, vomiting, insomnia, nausea, asthenia, tremor, decreased appetite, dizziness, hypocalcemia, dyspepsia, back pain, upper abdominal pain, and hyperkalemia.
Interactions
7 DRUG INTERACTIONS Avoid use of herbal medicines and supplements. ( 7.1 ) See full prescribing information for complete list of clinically significant drug interactions. ( 7.2 ) 7.1 Pharmacodynamic Interactions Herbal Medicines and Supplements There is a potential for pharmacodynamic interactions and/or toxicities between fexinidazole and herbal medicines and supplements. Avoid concomitant use of herbal medicines and supplements during treatment with Fexinidazole Tablets.
Warnings
5 WARNINGS AND PRECAUTIONS Decreased Efficacy in Severe Human African Trypanosomiasis caused by Trypanosoma brucei gambiense. ( 1 , 5.1 ) QT Interval Prolongation: Prolongation of the QT interval due to Fexinidazole Tablets occurs in a concentration-dependent manner. Avoid use in patients with known prolongation, proarrhythmic conditions, and concomitant use with drugs that prolong the QT interval, those that block cardiac potassium channels, and/or those that induce bradycardia, or are inducers of hepatic CYP450. ( 5.2 , 7.1 , 7.2 , 12.2 ) Neuropsychiatric Adverse Reactions: Adverse reactions such as agitation, anxiety, abnormal behavior, depression, suicidal ideation, nightmares, hallucination, and personality change have been observed during therapy. 4 CONTRAINDICATIONS Fexinidazole Tablets are contraindicated in: Patients with known hypersensitivity to Fexinidazole Tablets and/or any nitroimidazole-class drugs (e.g., metronidazole, tinidazole). Patients with severe hepatic impairment [see Warnings and Precautions (5.5) , Adverse Reactions (6.1) , and Use in Specific Populations (8.7) ] . Patients with Cockayne syndrome.
Pregnancy
8.1 Pregnancy Risk Summary There are risks to the mother and fetus associated with untreated HAT due to T. brucei gambiense during pregnancy (see Clinical Considerations ) . Available data from clinical trials with fexinidazole use in pregnant women are insufficient to evaluate for a drug-associated risk of major birth defects or miscarriage. There were no effects on prenatal development in embryo-fetal studies where pregnant rats were administered oral fexinidazole during organogenesis at a dose similar to the clinical dose based on AUC comparisons.
Storage
Store below 30°C (86°F). Store in the original package in order to protect from light and moisture.
Frequently Asked Questions
What is Fexinidazole used for?▼
1 INDICATIONS AND USAGE Fexinidazole Tablets are indicated for the treatment of both the first-stage (hemolymphatic) and second-stage (meningoencephalitic) human African trypanosomiasis (HAT) due to Trypanosoma brucei gambiense in patients 6 years of age and older and weighing at least 20 kg. Fexinidazole Tablets is a nitroimidazole antimicrobial, indicated for the treatment of both first-stage (hemolymphatic) and second-stage (meningoencephalitic) human African trypanosomiasis (HAT) due to Trypanosoma brucei gambiense in patients 6 years of age and older and weighing at least 20 kg. ( 1 ) Limitations of Use Due to the decreased efficacy observed in patients with severe second stage HAT (cerebrospinal fluid white blood cell count (CSF-WBC) >100 cells/µL) due to T.
What are the side effects of Fexinidazole?▼
6 ADVERSE REACTIONS The following serious and otherwise important adverse reactions are discussed in greater detail in other sections of labeling: Decreased Efficacy in Severe Human African Trypanosomiasis Caused by Trypanosoma brucei gambiense [see Warnings and Precautions (5.1) ] QT Interval Prolongation [see Warnings and Precautions (5.2) ] Neuropsychiatric Adverse Reactions [see Warnings and Precautions (5.3) ] Neutropenia [see Warnings and Precautions (5.4) ] Potential for Hepatotoxicity [see Warnings and Precautions (5.5) ] Most common adverse reactions (incidence >10%) are headache, vomiting, insomnia, nausea, asthenia, tremor, decreased appetite, dizziness, hypocalcemia, dyspepsia, back pain, upper abdominal pain, and hyperkalemia.
Can I take Fexinidazole during pregnancy?▼
8.1 Pregnancy Risk Summary There are risks to the mother and fetus associated with untreated HAT due to T. brucei gambiense during pregnancy (see Clinical Considerations ) . Available data from clinical trials with fexinidazole use in pregnant women are insufficient to evaluate for a drug-associated risk of major birth defects or miscarriage. There were no effects on prenatal development in embryo-fetal studies where pregnant rats were administered oral fexinidazole during organogenesis at a dose similar to the clinical dose based on AUC comparisons.
What are the important warnings for Fexinidazole?▼
5 WARNINGS AND PRECAUTIONS Decreased Efficacy in Severe Human African Trypanosomiasis caused by Trypanosoma brucei gambiense. ( 1 , 5.1 ) QT Interval Prolongation: Prolongation of the QT interval due to Fexinidazole Tablets occurs in a concentration-dependent manner. Avoid use in patients with known prolongation, proarrhythmic conditions, and concomitant use with drugs that prolong the QT interval, those that block cardiac potassium channels, and/or those that induce bradycardia, or are inducers of hepatic CYP450. ( 5.2 , 7.1 , 7.2 , 12.2 ) Neuropsychiatric Adverse Reactions: Adverse reactions such as agitation, anxiety, abnormal behavior, depression, suicidal ideation, nightmares, hallucination, and personality change have been observed during therapy. 4 CONTRAINDICATIONS Fexinidazole Tablets are contraindicated in: Patients with known hypersensitivity to Fexinidazole Tablets and/or any nitroimidazole-class drugs (e.g., metronidazole, tinidazole). Patients with severe hepatic impairment [see Warnings and Precautions (5.5) , Adverse Reactions (6.1) , and Use in Specific Populations (8.7) ] . Patients with Cockayne syndrome.
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Non-Standardized Food Allergenic Extract [EPC]
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Lotilaner Ophthalmic Solution
lotilaner ophthalmic solution
Ectoparasiticide [EPC]
11 DESCRIPTION Lotilaner is a member of the isoxazoline family of compounds. Its chemical name is 2-Thiophenecarboxamide, 5-[(5S)-4,5-dihydro-5-(3,4,5-trichlorophenyl)-5-(trifluoromethyl)-3-isoxazolyl]-3-methyl-N-[2-oxo-2-[(2,2,2-trifluoroethyl)amino]ethyl]-2-thiophenecarboxamide. The molecular formula is C 20 H 14 Cl 3 F 6 N 3 O 3 S. The molecular weight is 596.76 g/mol.
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.