With as much scientific accuracy as possible, how would chemicals injected in one's body be removed?

I am currently writing the world, setting and characters for a project of mine called the ORION Project - a story set in a dystopian America in the near future of 2050, where the government has taken complete control over its people, and doing anything to keep it that way. After a nuclear and energy warfare, an American energy research facility blew up, causing unknown radiation to spread across the continent.

But that's just the background of my story, and since it isn't that relevant to my question, I'll just jump to the important part.

On Earth, superpowered people have always existed, but these people were rare, and hid their powers as they had a human appearance. These people, were called Meta-Humans, or for short, Metas. But ever since the energy catastrophe, the radiations have altered the newborn Metas' DNA, altering their appearance and ability to hide their powers. Their appearance didn't look exactly the same as humans now, for example, markings, strange eye color or skin color could be found on them. Because of that, humans began raising suspicions, and so in the end, Metas were discovered by humans.

And so this is where my questions comes in. These newborn Meta-Humans were taken into government labs as kids to study their abilities. This project was called the ORION Project, and the sole purpose of the project was to study Metas and their powers, while trying to replicate those abilities on actual humans. And so the main character of that story is Astrid, a Meta-Human who was taken in at the lab at age 6, and stayed there ever since. Although her real name is Astrid, she is called by her code name 006, and her memory of her name was altered so that she wouldn't remember it. But that's besides the point. At age 6, Astrid came into the lab, and was experimented on in all sorts of ways, unethical or not. And so here is my question:

During one of the tests, Astrid is injected with a chemical that is usually harmless to humans, but that causes an unusual reaction for her, as a Meta-Human. Astrid possesses markings under her eyes and on her hands, that glow bright red along with her eyes when she uses her telekinectic powers, but also when she feels strong emotions. Inside these markings is an unknown orange substance that travels throughout her whole body thanks to an additional secondary system of vessels created specifically for the purpose of carrying this unknown substance around. So coming back to the tests, Astrid starts feeling dizzy and has an accelerated heartbeat, as well as a hard time breathing. Her arm feels numb and her markings start to glow for no particular reason. Since the scientists see the subject is nearing death, they have to remove the substance they injected out of her body, or at least be able to save her. My question is: Is it possible to do such a thing? I'd prefer an answer involving as much scientific accuracy as possible, regarding current knowledge about the human body, within this fictional scenario.

05/28/2020 Edit:

I did more research on each substance as well as giving them proper names. Here are those I came up with:

"¢ Dynar - from latin -rupt (break) and greek dyna- (power). Chemical given through an injection to incapacitate a meta's abilities. (not used for this example but good to know)

"¢ Prooxcyte - (substance injected directly into the subject's additional veins for the test and the cause of the subject's dangerous reaction) goes in the orange blood cell veins, reacts with the orange cells and makes the cells inflate, blocking the circulation in the veins. Subject's powers will be incapacitated, will feel emotional distress, will feel lightheaded and will start to suffocate if not treated as Subject will show symptoms of asthma as the throat will start to inflate. Subject can die of suffocation after 4 minutes. Big red marks can be found on her skin because of that, and the subject will feel numb in these areas.

"¢ Antioxyte: anti- (against) ox- (growth) cyte (cell) Reacts with the subject's orange cells to make them revert back to their original size.

Treatment: Immediately put a breathing mask on the subject's face to facilitate breathing and avoid suffocation. Subject is to be injected antioxcyte which will revert the cells back in their original size. Immediately put the subject under dialysis to remove the substance out of her body. (Thanks to everyone who answered my question with different treatments, I selected those that seemed the best suited to heal the subject.)

I will also provide a better description of how Astrid's powers affects her body and how her anatomy is made for her to handle these powers:

Telekinesis: This is her main power. She is able to make objects levitate in the air just by looking at them. There are two variants of her powers. When using her eyes, she has more precision but less strength, so it is good for aiming but not for carrying heavy objects. Using her hands is the opposite, gives strength but not precision.

Basic Mind-Manipulation/Persuasion: When making eye contact with someone, she is easily able to persuade that person to do what she wants. This power works as a tool to convince and win arguments - she does not actually manipulate the person's brain so that she can make them move however she wants.

Her markings and why they're important: She has four red oval-shaped markings under her eyes, and the same markings on each one of her fingers. They glow when she uses her powers. Her red eyes also glow when she uses her powers. But moreover, these markings and eyes glow as well when she feels strong emotions. Astrid weirdly either doesn't show any emotions, or shows intense emotions where she glows. To make it short, she glows when she feels emotions. An orange substance exclusive to Astrid is located in these markings, but also in the rest of her body. This substance is spread across her body in additional veins and this is what makes her powers travel throughout her body, as well as pick up on her emotions and make her glow. The areas with the most of that substance are situated in her markings, eyes, and her brain, as her powers are mainly coming from her brain and high IQ. This orange substance glows but the glow is only visible in her eyes and markings, as the rest of the glow is hidden under her skin, although it can sometimes be faintly visible in total darkness.

Blood/Orange Substance: Her blood is not exactly the same as humans therefore she cannot receive blood from other humans. She must receive blood from another meta-human who has the same blood type as her. She is the only known meta with such an orange substance running inside her body, therefore they cannot take that substance from anyone else. Her parents were killed as she was taken into the lab, so they cannot use her parents in any way.

With this new information, I hope it will make it easier for you to answer. I apologize if some more scientifically precise details are missing, such as the molecular constitution of these chemicals. I do not have enough scientific knowledge as of now to provide more detailed information. I named these chemicals after Latin and Greek words used in medicine based on the chemical's function so let me know if the chemicals I created actually work or if they should be named differently or if I should make their purpose different. Thanks!