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This is the horrifying moment a woman drank a cup of ice coffee that had allegedly been poisoned with cyanide just minutes before her death.

Mirna Salihin can be seen reacting as if she is in pain after consuming the beverage before slumping backwards in her chair.

The design student’s friend of seven years Jessica Wongso, who is sitting with her in the CCTV footage, has now been charged with Ms Salihin’s murder .

It was initially thought that the alleged murder was an act of revenge after Ms Salahin apparently told Wongso to break off a relationship because her then-boyfriend was a “rough” drug dealer, The Age reported.

But to avenge her pain “the defendant planned to take away Mirna’s life”, prosecutors said.

Wongso is now on trial in Indonesia and facing the death penalty over the alleged murder.

The pair had met up in Jakarta, the country's capital, to catch up with another friend who they knew from studying in Australia.

But Wongso arrived at the Olivier Restaurant early and ordered Ms Salihin’s favourite drink – an iced Vietnamese coffee – before allegedly lacing it with cyanide.

She is accused of placing the coffee on the table before arranging bags around it so the cup could not be seen by witnesses.

Wongso then allegedly gave the coffee to Ms Salihin when she arrived, saying: “This is for you Mir, you said you wanted it.”

But when Ms Salihin drank it, she apparently collapsed after replying: “This is really not good, this is awful.”

After watching the video, Mirna’s husband Arief Soemarko told ABC: “She's obviously in pain. Several times she waves her hand at her mouth.

“I heard that the poison itself is corrosive and it destroys everything that's in the way.

“I heard also that her stomach was destroyed because of the poison.

“I’m really devastated on how she felt that day.”

Detectives in Australia discovered that Wongso had serious mental health problems and in the year before the alleged murder she attempted suicide, threatened colleagues and had a violence order taken out against her.

They passed the information on to prosecutors in Indonesia after the case was almost dropped because of a lack of evidence.

But Wongso’s lawyers have claimed no evidence has been given about where the cyanide was allegedly purchased or how it was put into the drink.

The autopsy also did not establish how much cyanide was in Ms Salihin’s body – but 298mg was found in the cup.

That amount would be lethal for a woman of her size.