<p><strong>Rifampicin:</strong>&nbsp;Reddish discolouration of body fluids, asymptomatic increase in liver enzymes, elevations of BUN &amp; uric acid, hemolysis, hematuria, intestinal nephritis, renal insufficiency, Gl discomfort, CNS effects, hematological changes, skin rash, endocrine effects.<br />
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<strong>Isoniazid:</strong>&nbsp;Disturbances of liver function, hepatitis, Gl disturbances, peripheral neuropathy, dizziness, lightheadedness, hematological changes, allergic reactions.<br />
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<strong>Pyrazinamide:</strong>&nbsp;Transient rise in serum transaminases, hepatotoxicity, hepatomegaly, jaundice, hyperuricemia, intestinal nephritis, dysuria, Gl disturbances, hematological changes, allergic reactions.<br />
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<strong>Ethambutol:</strong>&nbsp;Confusion, disorientation, headache, visual disturbances, jaundice, transient liver dysfunction, Gl disturbances, hematological changes, allergic effects, acute gout (rare).</p>