Amy Winehouse's hubby has been rushed to hospital after a suspected drugs overdose.

Blake Fielder-Civil, incarcerated in Pentonville Prison, is thought to have taken a deadly combination of heroin mixed with a toxic substance before collapsing.

Guards rushed to his cell after he was reportedly found writhing and vomiting on the floor.

The incident comes just days after he was released from solitary confinement after allegedly failing three random drugs test.

It is reported he got cash for the narcotics by selling signed photos of Amy to fellow inmates.

"A small number of prisoners were treated in health care following the consumption of an unknown substance," a police spokesman confirmed.

Amy, a former student at Croydon's Brit School, is said to have drawn a tear drop under her eye since Blake was hospitalised.