One time my pharmacy couldn't fill my Lexapro Rx because they ran out of Lexapro, and unfortunately I was leaving for vacation in 1 hour, so I was screwed.

Within 2 or 3 days of not taking Lexapro, I got horrible brain zaps.

I would go really slowly... maybe 2.5 mg at a time to be honest. When I've gone down by 5mg, it was horrible.