Dosing
CrCl > 80: 320 mg po qd.
CrCl < 40: 160 mg po qd.
Hemodialysis: 160 mg po qd.
Peritoneal dialysis: 160 mg po qd.
Important side effects
Beware ever so slightly of patients with long qt (that's an EKG finding), it can make it worse. Diarrhea, nausea, dizziness, headache, hyperglycemia, hypoglycemia (usually in diabetic patients), peripheral neuropathy, tendon rupture (rare), torsades de pointes (rare).
Important drug interactions
Aluminum carbonate, basic, aluminum hydroxide, aluminum phosphate, antidiabetic agents, antipsychotics, arsenic trioxide, astemizole, bepridil, calcium carbonate, chloral hydrate, chloroquine, cisapride, clarithromycin, class i antiarrhythmic agents, class ia antiarrhythmic agents, class iii antiarrhythmic agents, corticosteroids, didanosine, dihydroxyaluminum aminoacetate, dihydroxyaluminum sodium carbonate, dolasetron, droperidol, erythromycin, fluconazole, fluoxetine, foscarnet, halofantrine, iron, isradipine, levomethadyl, lidoflazine, magaldrate, magnesium carbonate, magnesium hydroxide, magnesium oxide, magnesium trisilicate, mefloquin, mesoridazine, octreotide, pentamadine, phenothiazines, pimozide, probucol, quercetin, spiramycin, sucralfate, sulfamethizole, terfenadine, thioridazine, tricyclic antidepressants, trimethoprim, vasopressin, venlafaxine, zinc, ziprasidone, zolmitriptan.
Rants and Screeds
Pearls
Treatment of choice
Use for
Don't use for
Class
Quinolone.
Last Update 11/26/19