Charak Samhita
भूयश्चैषां बलाधानं कार्यं स्वरसभावनैः। सुभावितं ह्यल्पमपि द्रव्यं स्याद्बहुकर्मकृत्॥४७॥
The quality and action of drugs can be enhanced by the proper triturating with either swarasa (juice) or kwatha (decoction) of the same drug or of the other drugs with similar qualities and action.
english translation
भूयश्चैषां बलाधानं कार्यं स्वरसभावनैः। सुभावितं ह्यल्पमपि द्रव्यं स्याद्बहुकर्मकृत्॥४७॥
The quality and action of drugs can be enhanced by the proper triturating with either swarasa (juice) or kwatha (decoction) of the same drug or of the other drugs with similar qualities and action.
english translation