<p style='text-align:justify;'>Dravya is classified into two types: rasa pradhana (dominated by rasa) and veerya- pradhana (dominated by veerya). <sup>[Chakrapani on Cha.Sa. Sutra Sthana 2/17]</sup> The dietary items (ahara dravya) are considered rasa pradhana, while medicines (aushadha) are deemed to be veerya pradhana. The aushadha are again divided into three types based on veerya, namely mild (mrudu veerya), moderate (madhyama veerya) and sharply acting (teekshna veerya) <sup>[Chakrapani on Cha.Sa. Sutra Sthana 2/17]</sup>. This can be summarised in the table given below:
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{| class="wikitable"
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|+ Table 1: Three types of Dravya based on veerya
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! Veerya wise classification
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! Examples
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! Matra (dose) to be used
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|-
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| Teekshna veerya
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| Shunthyadi (herbs like Shunthi- ''Zingiber offincinale'')
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| Karsha (12 grams)
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|-
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| Madhyama veerya
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| Bilva-agnimanthadi (herbs like Bilva- ''Aegle marmelos'' and Agnimantha- ''Premna serratifolia'' etc.)
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| Ardhapala (24 grams)
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|-
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| Mridu veerya
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| Amalakadi (herbs like Amalaki- ''Phyllanthus emblica'')
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| Pala (48 grams)
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|-
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|}
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{| class="wikitable"
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|+ Table 2: Opinions of various authors regarding the concept of veerya
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! Sr. No
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! Author name
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! Opinion
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! Reference
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|-
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|rowspan="2"| 1.
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|rowspan="2"| Charak
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| Considers chintya (explainable) and achintya (unexplainable) veerya.
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| Cha. Sa. Sutra Sthana 26/70
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|-
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| Defines veerya as the potency or power of the drug through which it performs its work or action
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| Cha.Sa. Sutra Sthana.26/65
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