Kev siv cov chav tsev capsule feem ntau yog mus ncig, cov menyuam kawm ntawv, lossis cov neeg nyob ib ntus. Rau cov neeg no, nws yog ib qho kev xaiv zoo uas tso cai rau lawv kom muaj chaw nyob hauv nroog. Capsule chav tsev zoo ib yam li kev ua haujlwm ntawm lub tsev so, muab cov neeg nyob ib puag ncig ib puag ncig, tab sis nws qhov chaw me me, zoo li lub txaj ua haujlwm ntau dua, uas tuaj yeem ua rau tib neeg nyob ntawm no rau ib hnub, tab sis nws tsis tuaj yeem sawv ntsug.