Ramelteon (Rozerem) and doxepin are both prescription medications, but they serve different purposes and belong to different drug classes. Ramelteon is a melatonin receptor agonist used to treat insomnia by mimicking the natural hormone melatonin to help you fall asleep. It is not a controlled substance and is not habit-forming. On the other hand, doxepin is a tricyclic antidepressant used to treat depression and anxiety, and it can take 2 to 3 weeks to notice its full effects. Doxepin is not a first-choice treatment due to its many side effects, such as drowsiness, dry mouth, and constipation, and it can lead to withdrawal symptoms if stopped abruptly. Ramelteon is typically taken 30 minutes before bedtime on an empty stomach, while doxepin can be taken once daily, often at bedtime if it causes sleepiness. Unlike ramelteon, doxepin requires careful monitoring for worsening depression or suicidal thoughts, especially in younger individuals. Both medications should not be taken with alcohol due to increased risks of side effects.