Andrea Heming disappeared before her sentencing two years ago after pleading guilty to poisoning her husband

A woman from Nevada is on the run after poisoning her husband's Lucky Charms cereal all to get out of having sex with him.

Andrea Heming pleaded guilty to contaminating her husband's food after putting boric acid in his cereal, energy drinks and even whipped cream.

The chemical is often used to kill cockroaches. The man suffered from diarrhea and nose bleeds for months before he realized what was happening.

When questioned by police, Heming admitted to poisoning his food.

A police report states Heming told police, 'I wouldn't use that much to kill him, but just enough to make him not have an erection.'

Heming poisoned her husband's Lucky Charms cereal with Boric acid (file)

Video courtesy of KTNV

The night before she was due to be sentenced she went on the run and has been on the lam for the past two years.

'I was very surprised,' her ex-husband, identified by 3 News only as 'Ralph,' told the station. 'I thought we had a better system of keeping track and holding people responsible.'

'I had been getting sick awhile back. Like six to eight months. I got stomach cramps.'

Ralph told the station that his wife's erratic behavior wasn't just aimed at him: 'She did reveal to me a story where she was a flight attendant at one time, and she had a customer — you know a passenger who was she said was unruly,' he told the station. 'She actually put sedatives in her drink.'

Law enforcement officials believe Hemming is hiding in Mexico.

If she is ever caught, she could face up to 15 years in prison.