Antidepressant Withdrawal and Rebound Phenomena.

Area of Science:

• Pharmacology
• Clinical Medicine
• Psychiatry

Background:

• Antidepressants are widely prescribed globally.
• Discontinuation often occurs without physician awareness.
• Understanding withdrawal and rebound is crucial for patient care.

Purpose of the Study:

• To review and synthesize evidence on antidepressant withdrawal and rebound phenomena.
• To inform physicians about potential risks and management strategies.

Main Methods:

• Comprehensive literature search across CENTRAL, PubMed, and Embase databases.
• Classification of studies based on methodological quality.
• Inclusion of controlled trials, cohort studies, and case reports.

Main Results:

• Withdrawal symptoms are typically mild and self-limiting (e.g., dizziness, headache, sleep/mood disturbances).
• Higher risk of withdrawal with MAO inhibitors, TCAs, venlafaxine, and paroxetine.
• Agomelatine and fluoxetine appear unproblematic for abrupt discontinuation; rebound phenomena require further study.

Conclusions:

• Acute withdrawal phenomena following antidepressant discontinuation are well-documented.
• Rebound phenomena require further investigation.
• Tapering antidepressants over more than four weeks is recommended.