Onmel
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Questions & Answers
Side Effects & Adverse Reactions
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Legal Issues
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Manufacturer Warnings
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FDA Labeling Changes
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Uses
ONMEL is indicated for the treatment of onychomycosis of the toenail due to Trichophyton rubrum or T. mentagrophytes in non-immunocompromised patients. Prior to initiating treatment, appropriate nail specimens for laboratory testing (KOH preparation, fungal culture, or nail biopsy) should be obtained to confirm the diagnosis of onychomycosis. [See Contraindications (4), Warnings and Precautions (5), Drug Interactions (7), and Clinical Pharmacology (12).]
History
There is currently no drug history available for this drug.
Other Information
ONMEL (itraconazole) is a synthetic triazole antifungal agent for oral use. Itraconazole is a 1:1:1:1 racemic mixture of four diastereomers (two enantiomeric pairs), each possessing three chiral centers. It may be represented by the following structural formula and nomenclature:
(±)-cis-4-[4-[4-[4[[2-(2,4-dichlorophenyl)-2-(1H-1,2,4-triazol-1-ylmethyl)-1,3-dioxolane-4-yl]methoxy]phenyl]-1-piperazinyl]phenyl]-2,4-dihydro-2-(1-methylpropyl)-3H-1,2,4-triazol-3-one
Itraconazole has a molecular formula of C35H38Cl2N8O4 and a molecular weight of 705.64. It is a white to slightly yellowish powder. It is insoluble in water, very slightly soluble in alcohols, and freely soluble in dichloromethane. It has a pKa of 3.70 (based on extrapolation of values obtained from methanolic solutions) and a log (n-octanol/water) partition coefficient of 5.66 at pH 8.1.
Each ONMEL is formulated for melt extrusion technology and contains 200 mg of itraconazole and the following inactive ingredients: colloidal silicon dioxide, crospovidone, hydrogenated vegetable oil, hypromellose, lactose, microcrystalline cellulose, magnesium stearate, propylene glycol, talc, and titanium dioxide.
Sources
Onmel Manufacturers
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Merz Pharmaceuticals, Llc
![Onmel (Itraconazole) Tablet [Merz Pharmaceuticals, Llc]](/wp-content/themes/bootstrap/assets/img/loading2.gif)
Onmel | Merz Pharmaceuticals, Llc
ONMEL should be taken with a full meal at the same time each day. The recommended dose is 200 mg (one tablet) once daily for 12 consecutive weeks.
Use in Patients with Renal Impairment:
Limited data are available on the use of oral itraconazole in patients with renal impairment. Caution should be exercised when ONMEL is administered to patients with renal impairment. [See Clinical Pharmacology (12) and Warnings and Precautions (5).]
Use in Patients with Hepatic Impairment:
Limited data are available on the use of oral itraconazole in patients with hepatic impairment. Caution should be exercised when ONMEL is administered to patients with hepatic impairment. [See Clinical Pharmacology (12) and Warnings and Precautions (5).]
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