During the pregnancy this treatment should be used only when strongly necessary. This medication belongs to a class of medications called tricyclic antidepressants. Follow your doctor's instructions carefully. Consult your doctor or pharmacist for more details. Mix only what you need for each dose. Do not prepare a supply for future use. To prevent these symptoms while you are stopping treatment with this drug, your doctor may reduce your dose gradually. Do not take the medicine more often than it is prescribed. Tell your doctor or pharmacist of all prescription and nonprescription/herbal products you used before using this medication.