"this medicine should not be stored where it receives direct sunlight, changing temperatures, or humidity changes (i.e. bathrooms). i learned this the hard way recently. my prescription sat on my bedside table in front of a window with morning sun exposure and when i took a dose recently i felt lethargic, incoherent, and outside of my body. my husband told me i fought in my sleep and cried out for my children, i tossed and turned for several hours but he couldn&#039;t wake me up. i was not told how to store this medicine and i didn&#039;t think i was doing anything wrong."