Charak Samhita
किञ्चिदेभिर्गुणैर्हीनं पूर्वोक्तैर्मात्रया तथा। स्निग्धस्विन्नस्य वा सम्यङ्मध्यं भवति भेषजम्॥५५॥
॥ Madhyama (medium)॥ The drugs with slightly less quality than above mentioned characteristic features used in medium dosage will produce medium action in the person who underwent proper snehana & swedana and are called as madhyama.
english translation
kiJcidebhirguNairhInaM pUrvoktairmAtrayA tathA। snigdhasvinnasya vA samyaGmadhyaM bhavati bheSajam॥55॥
hk transliteration by Sanscript