Charak Samhita
यद्धि मानं तुला प्रोक्ता पलं वा तत् प्रयोजयेत्। अनुक्ते परिमाणे तु तुल्यं मानं प्रकीर्तितम्॥९९॥
But the measurement in terms of pala & tula are mentioned then the same is taken. If the quantity of drugs is not specified in a combination, then all ingredients are used in equal quantity.
english translation
yaddhi mAnaM tulA proktA palaM vA tat prayojayet। anukte parimANe tu tulyaM mAnaM prakIrtitam॥99॥
hk transliteration by Sanscript