<p>Rifampin can be administered by the oral route or by IV infusion. IV doses are the same as those for oral.<br />
<br />
Tuberculosis:</p>

<ul>
	<li><strong>Adults</strong>: 10 mg/kg, in a single daily administration, not to exceed 600 mg/day, oral or IV</li>
	<li><strong>Pediatric Patients</strong>: 10&ndash;20 mg/kg, not to exceed 600 mg/day, oral or IV</li>
</ul>

<p>It is recommended that oral rifampin be administered once daily, either 1 hour before or 2 hours after a meal with a full glass of water.<br />
<br />
Rifampin is indicated in the treatment of all forms of tuberculosis. A three-drug regimen consisting of rifampin, isoniazid, and pyrazinamide is recommended in the initial phase of shortcourse therapy which is usually continued for 2 months. The Advisory Council for the Elimination of Tuberculosis, the American Thoracic Society, and the&nbsp;Centers for Disease Control and Prevention&nbsp;recommend that either streptomycin or ethambutol be added as a fourth drug in a regimen containing isoniazid (INH), rifampin and pyrazinamide for initial treatment of tuberculosis unless the likelihood of INH resistance is very low. The need for a fourth drug should be reassessed when the results of susceptibility testing are known. If community rates of INH resistance are currently less than 4%, an initial treatment regimen with less than four drugs may be considered.<br />
<br />
Following the initial phase, treatment should be continued with rifampin and isoniazid for at least 4 months. Treatment should be continued for longer if the patient is still sputum or culture positive, if resistant organisms are present, or if the patient is HIV positive.</p>

<p>&nbsp;</p>

<p><strong>Administration</strong></p>

<p>Should be taken on an empty stomach. Best taken on an empty stomach 1 hr before or 2 hr after meals.</p>