Charak Samhita
ओजस्यविहते पूर्वो हृदि च प्रतिबोधिते । मध्यमो विहतेऽल्पे च विहते तूत्तमो मदः ॥३७॥
॥ Stages of mada (intoxication)॥ The early stage of intoxication starts when it spreads up to the heart but ojas is not disturbed; in the middle stage ojas gets disturbed and in the later stage there is severe disturbance to the ojas.
english translation
ojasyavihate pUrvo hRdi ca pratibodhite । madhyamo vihate'lpe ca vihate tUttamo madaH ॥37॥
hk transliteration by Sanscript