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The old dose for pyrazinamide was 40–70 mg/kg daily and the incidence of drug-induced hepatitis has fallen significantly since the recommended dose has been reduced to 12–30 mg/kg daily. In the standard four-drug regimen (isoniazid, rifampicin, pyrazinamide, ethambutol), pyrazinamide is the most common cause of drug-induced hepatitis. [13]
The PZA dose is 20 mg/kg/day (UK recommendation) or three-quarters the normal dose (US recommendation), but not much published evidence is available to support this. When using 2HRZ/4HR in patients on dialysis, the drugs should be given daily during the initial high-intensity phase.
MPR provides detailed information on a wide range of prescription drugs, including: Indications and Usage: Descriptions of the approved uses for each medication. Dosage and Administration: Guidelines on how to properly administer the drug, including dosage amounts and frequency. Contraindications: Situations where the drug should not be used.
It is used either by itself or along with other antituberculosis medication. [1] It is taken by mouth. [1] Side effects are those of the underlying medications. [1] These may include poor coordination, loss of appetite, nausea, joint pain, feeling tired, and numbness. [2] Severe side effects include liver problems. [3]
It is a fixed dose combination of ethambutol, isoniazid, pyrazinamide, and rifampicin. [1] It is used either alone or with other antituberculosis medication. [1] It is taken by mouth. [1] Side effects are those of the underlying medications. [1] Pyridoxine may be used to decrease the risk of numbness. [2]
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[3] [4] Long-term use may cause yellowing of nails. [7] Phenazopyridine should be avoided by people with glucose-6-phosphate dehydrogenase deficiency, [4] [8] [9] [10] because it can cause hemolysis (destruction of red blood cells) due to oxidative stress. [11] It has been reported to cause methemoglobinemia after overdose and even normal doses ...
Isoniazid decreases the metabolism of carbamazepine, thus slowing down its clearance from the body. People taking carbamazepine should have their carbamazepine levels monitored and, if necessary, have their dose adjusted accordingly. [38] It is possible that isoniazid may decrease the serum levels of ketoconazole after long-term treatment.