Cyclic antidepressants aren’t considered addictive, but sometimes physical dependence, which is different from addiction, can occur. So stopping treatment abruptly or missing several doses can cause withdrawal-like symptoms. This is sometimes called discontinuation syndrome. Work with your doctor to gradually and safely decrease your dose.
Withdrawal-like signs and symptoms can include:
Nausea and vomiting
Sweating
Flu-like symptoms
Lethargy
Headache
Dizziness
Muscle cramping
Irregular or rapid heartbeat