Mainly Halcion is a sleeping pill used to treat insomnia. Buy Halcion Online to get better sleep by reducing the waking up time in the middle of the night. This tablet comes in different doses like Halcion 25mg and Halcion 50mg. Use the quantities as per the Doctor’s guidance. Improper use can lead to side effects. The long-term Halcion side effect can be half awake, dizziness, memory loss, hallucination, behavioural changes and confusion.