Ashtangahridayasamhita 1102

1102

manda-vahnim a-saṃśuddham a-kṣāmaṃ doṣa-dur-balam |
a-dṛṣṭa-jīrṇa-liṅgaṃ ca laṅghayet pīta-bheṣajam || 44 ||

One who has dull digestive fire, is unpurified, is not emaciated, is weak from humours, / and in whom the signs of digestion [of the medicine] have not been seen, having drunk medicine, one should make him fast;