Dosage of Moxifloxacin in details
DOSAGE AND ADMINISTRATION
The dose of Moxifloxacin is 400 mg (orally or as an intravenous infusion) once every 24 hours. The duration of therapy depends on the type of infection as described below.
For Complicated Intra-Abdominal Infections, therapy should usually be initiated with the intravenous formulation.
When switching from intravenous to oral dosage administration, no dosage adjustment is necessary. Patients whose therapy is started with Moxifloxacin I.V. may be switched to Moxifloxacin Tablets when clinically indicated at the discretion of the physician.
Oral doses of moxifloxacin should be administered at least 4 hours before or 8 hours after antacids containing magnesium or aluminum, as well as sucralfate, metal cations such as iron, and multivitamin preparations with zinc, or VIDEX® (didanosine) chewable/buffered tablets or the pediatric powder for oral solution.
Impaired Renal Function
No dosage adjustment is required in renally impaired patients, including those on either hemodialysis or continuous ambulatory peritoneal dialysis.
Impaired Hepatic Function
No dosage adjustment is recommended for mild, moderate, or severe hepatic insufficiency (Child-Pugh Classes A, B, or C).
Moxifloxacin I.V. should be administered by INTRAVENOUS infusion only. It is not intended for intra-arterial, intramuscular, intrathecal, intraperitoneal, or subcutaneous administration.
Moxifloxacin I.V. should be administered by intravenous infusion over a period of 60 minutes by direct infusion or through a Y-type intravenous infusion set which may already be in place. CAUTION: RAPID OR BOLUS INTRAVENOUS INFUSION MUST BE AVOIDED.
Since only limited data are available on the compatibility of moxifloxacin intravenous injection with other intravenous substances, additives or other medications should not be added to Moxifloxacin I.V. or infused simultaneously through the same intravenous line. If the same intravenous line or a Y-type line is used for sequential infusion of other drugs, or if the “piggyback” method of administration is used, the line should be flushed before and after infusion of Moxifloxacin I.V. with an infusion solution compatible with Moxifloxacin I.V. as well as with other drug(s) administered via this common line.
Preparation for administration of Moxifloxacin I.V. injection premix in flexible containers:
- Close flow control clamp of administration set.
- Remove cover from port at bottom of container.
- Insert piercing pin from an appropriate transfer set (e.g. one that does not require excessive force, such as ISO compatible administration set) into port with a gentle twisting motion until pin is firmly seated.
NOTE: Refer to complete directions that have been provided with the administration set.
What other drugs will affect Moxifloxacin?
Tell your doctor about all medicines you use, and those you start or stop using during your treatment with moxifloxacin, especially:
a diuretic or "water pill";
insulin or oral diabetes medicine;
a blood thinner--warfarin, Coumadin, Jantoven;
heart rhythm medication--amiodarone, disopyramide, dofetilide, dronedarone, procainamide, quinidine, sotalol, and others;
medicine to treat depression or mental illness--amitriptylline, clomipramine, desipramine, iloperidone, imipramine, nortriptyline, and others;
NSAIDs (nonsteroidal anti-inflammatory drugs)--aspirin, ibuprofen (Advil, Motrin), naproxen (Aleve), celecoxib, diclofenac, indomethacin, meloxicam, and others; or
steroid medicine--prednisone, dexamethasone, methylprednisolone, and others.
This list is not complete. Other drugs may interact with moxifloxacin, including prescription and over-the-counter medicines, vitamins, and herbal products. Not all possible interactions are listed in this medication guide.
Tablet: For the following substances, absence of a clinically relevant interaction with moxifloxacin was proven: Atenolol, ranitidine, calcium supplements, theophylline, oral contraceptives, glibenclamide, itraconazole, digoxin, morphine, probenecid. No dose adjustment is necessary for these drugs.
Antacids, Minerals and Multivitamins: Concomitant ingestion of moxifloxacin with antacids, minerals and multivitamins may result in impaired absorption of moxifloxacin after oral administration due to formation of chelate complexes with the multivalent cations contained in these preparations. This may lead to plasma concentrations considerably lower than desired. Hence, antacids, antiretroviral drugs (eg, didanosine) and other preparations containing magnesium or aluminium, sucralfate and agents containing iron or zinc should be administered at least 4 hours before or 2 hours after ingestion of an oral moxifloxacin dose.
Ranitidine: The concomitant administration with ranitidine did not change the absorption characteristics of moxifloxacin. Absorption parameters (Cmax, tmax, AUC) were comparable, indicating absence of an influence of gastric pH on moxifloxacin uptake from the gastrointestinal tract.
Calcium Supplements: When given with high dose calcium supplements, only a slightly reduced rate of absorption was observed, while extent of absorption remained unaffected. The effect of high-dose calcium supplements on the absorption of moxifloxacin is considered as clinically not relevant.
Theophylline: In accordance with in vitro data, no influence of moxifloxacin on theophylline pharmacokinetics (and vice versa) at steady state was detected in humans, indicating that moxifloxacin does not interfere with the 1A2 subtypes of the CYP450 enzymes.
Warfarin: No interaction during concomitant treatment with warfarin on pharmacokinetics, prothrombin time and other coagulation parameters has been observed.
Changes in International Normalized Ratio (INR): Cases of increased anticoagulant activity have been reported in patients receiving anticoagulants concurrently with antibiotics, including moxifloxacin. The infectious disease (and its accompanying inflammatory process), age and general status of the patient are risk factors. Although an interaction between moxifloxacin and warfarin was not demonstrated in clinical trials, INR monitoring should be performed and, if necessary, the oral anticoagulant dosage should be adjusted as appropriate.
Oral Contraceptives:No interaction has occured following concomitant oral administration of moxifloxacin with oral contraceptives.
Antidiabetics: No clinically relevant interaction was seen between glibenclamide and moxifloxacin.
Itraconazole: Exposure (AUC) to itraconazole was only marginally altered under concomitant moxifloxacin treatment. Pharmacokinetics of moxifloxacin were not significantly altered by itraconazole. No dose adjustment is necessary for itraconazole when given with moxifloxacin and vice versa.
Digoxin: The pharmacokinetics of digoxin are not significantly influenced by moxifloxacin (and vice versa). After repeated dosing in healthy volunteers, moxifloxacin increased Cmax of digoxin by approximately 30% at steady state without affecting AUC or trough levels.
Parenteral administration of morphine with moxifloxacin did not reduce the oral bioavailability of moxifloxacin and only slighlty decreased Cmax (17 %).
Atenolol: The pharmacokinetics of atenolol are not significantly altered by moxifloxacin. Following single dose administration in healthy subjects, AUC was marginally increased (by approximately 4%) and peak concentrations were decreased by 10%.
Probenecid: No significant effect on apparent total body clearance and renal clearance of moxifloxacin was found in a clinical study investigating the impact of probenecid on renal excretion.
Charcoal: Concomitant dosing of charcoal and oral moxifloxacin 400 mg reduced the systemic availability of the drug by >80% by preventing absorption in vivo. The application of activated charcoal in the early absorption phase prevents further increase of systemic exposure in cases of overdose.
After IV drug administration, carbo medicinalis only slightly reduces systemic exposure (approximately 20%).
Food and Dairy Products: Absorption of moxifloxacin was not altered by food intake (including dairy products). Moxifloxacin can be taken independent from food intake.
Infusion: No interaction during concomitant treatment with warfarin, itraconazole, theophylline, digoxin and oral contraceptives.
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ReviewsThe results of a survey conducted on ndrugs.com for Moxifloxacin are given in detail below. The results of the survey conducted are based on the impressions and views of the website users and consumers taking Moxifloxacin. We implore you to kindly base your medical condition or therapeutic choices on the result or test conducted by a physician or licensed medical practitioners.
5 consumers reported frequency of useHow frequently do I need to take Moxifloxacin?
It was reported by ndrugs.com website users that Moxifloxacin should ideally be taken Once in a day as the most common frequency of the Moxifloxacin. You should you adhere strictly to the instructions and guidelines provided by your doctor on how frequently this Moxifloxacin should be taken. Get another patient's view on how frequent the capsule should be used by clicking here.
8 consumers reported dosesWhat doses of Moxifloxacin drug you have used?
The drug can be in various doses. Most anti-diabetic, anti-hypertensive drugs, pain killers, or antibiotics are in different low and high doses and prescribed by the doctors depending on the severity and demand of the condition suffered by the patient. In our reports, ndrugs.com website users used these doses of Moxifloxacin drug in following percentages. Very few drugs come in a fixed dose or a single dose. Common conditions, like fever, have almost the same doses, e.g., [acetaminophen, 500mg] of drug used by the patient, even though it is available in various doses.
Information checked by Dr. Sachin Kumar, MD Pharmacology