Charak Samhita
पश्यत्यसन्ति रूपाणि पतति प्रस्फुरत्यपि। जिह्वाक्षिभ्रूः स्रवल्लालो हस्तौ पादौ च विक्षिपन् ॥७॥
He visualizes non-existent forms (visual hallucinations), falls down, his tongue, eyes and eyebrows become tremulous, saliva discharges from his mouth, his hands and legs are extended / bent.
english translation
pazyatyasanti rUpANi patati prasphuratyapi। jihvAkSibhrUH sravallAlo hastau pAdau ca vikSipan ॥7॥
hk transliteration by Sanscript