、。
I'm bad with powdered medicine, you know.
Literal
I, powdered-medicine [topic-って] bad-at [explanatory-の][emphatic-よ][confirmation-ね].
粉薬 'powdered medicine' — a common form of medication in Japan, often disliked for its taste and texture. 苦手 'bad at, weak with, not good with' expresses a mild aversion. のよね is a feminine sentence-ending combining explanatory の + emphatic よ + confirmation-seeking ね, creating a confidential, shared-feeling tone.