United Kingdom, Feb. 14 -- Lily Allen has hit out at US-based doctors for prescribing medication that sent her "crazy".

The 39-year-old singer recently spent a few weeks at a treatment centre to work on herself for her children - daughters Ethel, 13, and Marnie, 11 - and she has now told how her life became "really unmanageable" because of the antidepressants she had been put on.

Speaking on her and friend Miquita Oliver's 'Miss Me?' podcast, she said: "The medication that I was on last year sent me f****** crazy. So I've had to change.

"I've had to come off of that medication and start a new one.

"And that was a big part of where things became really unmanageable for me."

Lily - who is reported to have split from her actor husband D...