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Side Effects & Adverse Reactions
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Legal Issues
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FDA Labeling Changes
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Uses
Cilostazol is indicated for the reduction of symptoms of intermittent claudication, as indicated by an increased walking distance.
History
There is currently no drug history available for this drug.
Other Information
Cilostazol is a quinolinone derivative that inhibits cellular phosphodiesterase (more specific for phosphodiesterase III). The empirical formula of cilostazol is C20H27N5O2, and its molecular weight is 369.47. Cilostazol is 6-[4-(1-cyclohexyl-1H-tetrazol-5-yl)butoxy]-3,4-dihydro-2(1H)-quinolinone, CAS-73963-72-1.
The structural formula is:
Cilostazol occurs as white to off-white crystals or as a crystalline powder that is slightly soluble in methanol and ethanol, and is practically insoluble in water, 0.1 N HCl, and 0.1 N NaOH.
Cilostazol tablets, USP for oral administration are available in 50 mg and 100 mg round, white tablets. Each tablet, in addition to the active ingredient, contains the following inactive ingredients: corn starch, croscarmellose sodium, magnesium stearate, and silicon dioxide.
Meets USP Dissolution Test 2
Sources
Oxybutynin Chloride Solution Manufacturers
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Qualitest Pharmaceuticals
Oxybutynin Chloride Solution | Apotex Corp.
2.1 Recommended dosageThe recommended dosage of cilostazol is 100 mg twice daily taken at least half an hour before or two hours after breakfast and dinner.
Patients may respond as early as 2 to 4 weeks after the initiation of therapy, but treatment for up to 12 weeks may be needed before a beneficial effect is experienced. If symptoms are unimproved after 3 months, discontinue cilostazol.
2.2 Dose Reduction with CYP3A4 and CYP2C19 InhibitorsReduce dose to 50 mg twice daily when coadministered with strong or moderate inhibitors of CYP3A4 (e.g., ketoconazole, itraconazole, erythromycin, and diltiazem) or inhibitors of CYP2C19 (e.g., ticlopidine, fluconazole, and omeprazole) [see Drug Interactions (7.1)]
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