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(Generic versions may still be available.)
Dicloxacillin is indicated in the treatment of infections caused by penicillinase-producing staphylococci which have demonstrated susceptibility to the drug. Cultures and susceptibility tests should be performed initialty to determine the causative organisms and their sensitivity to the drug. (see CLINICAL PHARMACOLOGY - Susceptibility plate Testing).
Dicloxacilin may be used to initiate therapy in suspected cases of resistant staphylococcal infections prior to the availability of laboratory test results. The penicillinase-resistant penicillins should not be used in infections caused by organisms susceptible to penicillin G. If the susceptibility tests indicate that the infection is due to an organism other than a resistant staphylococcus therapy should not be continued with a penicillinase-resistant penicillin.
DOSAGE AND ADMINISTRATION
Bacteriologic studies to determine the causative organisms and their sensitivity to the penicillinase-resistant penicillins should always be performed. Duration of therapy varies with the type and severity of infection as well as the overall condition of the patient, therefore it should be determined by the clinical and bacteriological response of the patient. In severe staphylococcal infections, therapy with penicillinase-resistant penicillins should be continued for at least 14 days. Therapy should be continued for at least 48 hours after the patient has become afebrile, asymptomatic and cultures are negative. The treatment of endocarditis and osteomyelitis may require a longer term of therapy.
Concurrent administration of the penicillinase-resistant penicillins and probenecid increases and prolongs serum penicillin levels.
Probencid decreases the apparent volume of distribution and slows the rate of excretion by competitively inhibiting renal tubular secretion of penicillin. Penicillin-probenecid therapy is generally limited to those infections where very high serum levels of penicillin are necessary.
Oral preparations of the penicillinase-resistant penicillins should not be used as initial therapy in serious, life-threatening infections (see PRECAUTIONS - General). Oral therapy with the penicillinase-resistant penicillins may be used to follow up the previous use of a parenteral agent as soon as the clinical condition warrants. for Intramuscular gluteal injections, care should be taken to avoid sciatic nerve injury. With intravenous administration, particularly in elderly patients, care should be taken because of the possibility of thrombophlebitis.
NB: INFECTIONS CAUSED BY GROUP A BETA-HEMOLYTIC STREPTOCOCCI SHOULD BE TREATED FOR AT LEAST 10 DAYS TO HELP PREVENT THE OCCURRENCE OF ACUTE RHEUMATIC FEVER OR ACUTE GLOMERULONEPHRITIS.
Dicloxacillin Sodium Capsules, USP.
250 mg: Each capsule contains dicloxacillin sodium monohydrate equivalent to 250 mg dicloxacillin, with a light green cap and body imprinted "biocraft 02", available in bottles of 40, 100, 500 and Unit Dose cartons of 100 (10 x 10).
500 mg: Each capsule contains dicloxacillin sodium monohydrate equivalent to 500 mg dicloxacillin. with a light green cap and body imprinted "biocraft 04", available in bottles of 30, 40, 50, 100, 500 and Unit Dose cartons of 100 (10 x 10).
Last reviewed on RxList: 8/21/2013
This monograph has been modified to include the generic and brand name in many instances.
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