Charak Samhita
दोषानुबलयोगाच्च हरेद्रोगबलाबलम् । कासेष्वेषु गरीयांसं जानीयादुत्तरोत्तरम् ॥१८९॥
But still bala (strength) and abalata (weakness) of the disease is determined by the nature of aggravation of associated dosha. Keeping this in view, treatment should be administered.
english translation
doSAnubalayogAcca haredrogabalAbalam । kAseSveSu garIyAMsaM jAnIyAduttarottaram ॥189॥
hk transliteration by Sanscript