Chlorthalidone should be stored at room temperature (68°F to 77°F), somewhere dry and away from light.
Since heat and moisture can damage medicines, bathroom cabinets may not be the best place to keep them. A shelf in a closet, a drawer, or a kitchen cabinet not above the stove or refrigerator are good options.
When looking for a place to store your chlorthalidone, remember to keep it somewhere dry, dark, and at room temperature. Be sure to keep it out of the reach of children.
High and dry! Away from the sun and you're done!