Charak Samhita
उपशयः पुनर्हेतुव्याधिविपरीतानां विपरीतार्थकारिणां चौषधाहारविहाराणामुपयोगः सुखानुबन्धः ॥१०॥
॥ Definition of Upashaya (pacifying factors)॥ Medicines, diets and regimens that bring about relief either by acting directly on the cause of a disease or the disease itself or by producing such effects indirectly are termed upashaya (pacifying factors).
english translation
upazayaH punarhetuvyAdhiviparItAnAM viparItArthakAriNAM cauSadhAhAravihArANAmupayogaH sukhAnubandhaH ॥10॥
hk transliteration by Sanscript