Japanese phrase
効果はどのくらい続きますか？ kō ka wa do no ku ra i tsuzu ki ma su ka
Meaning
How long does the effect last?
When to use it
Checks how long an effect is expected to last. It is a polite and neutral question used for medicine, treatments, and products.
Example dialogue
この薬の効果はどのくらい続きますか？ ko no kusuri no kō ka wa do no ku ra i tsuzu ki ma su ka
How long does the effect of this medicine last?
八時間くらいです。 hachi ji kan ku ra i de su
It lasts about eight hours.