The medical examination fee is around 600 yen. The cost of the medicine varies depending on the day.
ご質問ありがとうございます。
"The medical examination fee is around 600 yen."＝「診察代は600円ほどです。」
"The cost of the medicine varies depending on the day."＝「薬代はその日によって変わります。」
追加: "It's not only the medical examination fee you have to pay for. The medicine also costs something."＝「診察代だけではない。薬にもお金がかかるのだ。」
ご参考に。
On top of the examination fee with the doctor, there's a cost for the medicine.
The examination fee is usually 600 yen, but the cost of the medicine varies each time.
この場合、次のような言い方ができますよ。
ーOn top of the examination fee with the doctor, there's a cost for the medicine.
「診察台に加えて、薬代がかかります」
examination fee「診療費」
cost of medicine で「薬代」
ーThe examination fee is usually 600 yen, but the cost of the medicine varies each time.
「診療費は大抵600円くらいで、薬代は毎回変わります」
ご参考まで！
アメリカ合衆国 
カナダ 
