<ul>
	<li>If there is a history of liver disease</li>
	<li>Who take high alcohol</li>
	<li>Liver function test should be done before and during treatment</li>
	<li>If serum transaminase rises three times the upper limit of normal, treatment should be discontinued</li>
	<li>Avoid pregnancy during and for one month after treatment</li>
</ul>