Take 30 to 60 minutes before bedtime if using for sleep. Do not take for more than 2 weeks in a row. There is a liquid (elixir) if you cannot swallow pills. Those who have feeding tubes may also use the liquid. Flush the feeding tube before and after this drug is given. Take elixir with water, milk, or juice. If you are taking this drug long-term, take calcium and vitamin D as you were told to do by your doctor.