S.M. Maixner, J.F. Greden: Extended antidepressant maintenance and
discontinuation syndromes. Depress Anxiety
1998 8 Suppl 1 43-53
For various reasons, patients may discontinue medications, and when this happens
withdrawal phenomena may occur. Withdrawal effects are well documented for all
antidepressants and can be profound with TCAs. After stopping some SSRIs, a few withdrawal
symptoms may have similarities with those following discontinuation of TCAs, but unique
''CNS-like'' effects are frequently described, including brief recurrent episodes of
dizziness, lightheadedness, vertigo, electric shock-like sensations, and gait instability.
These appear to be half-life dependent, with agents with shorter half-lives having more
discontinuation symptoms. If antidepressant medications must be discontinued, a gradual
taper is preferable, perhaps extending three to six months or longer to prevent
discontinuation effects, enable adaptation at the receptor level and allow
earlier recognition and treatment of recurrent depressive symptoms. (Emphasis added - CM)