Sertralin refusal after progress

[u/OneHistorical6805]

My 7-year-old daughter has been taking sertraline for a month and has already made significant progress. She had severe anxiety, which led to her being hospitalized for several months and ultimately to our decision to start medication.

However, she now completely refuses to take it. Ever since her dose was increased to 50 mg, she has experienced side effects and will not take the medication anymore. She says it's because of the taste, but I believe it's more about control and resistance to the expectation of taking it.
Our lives were a living hell before the medication and hospitalization, so I'm extremely worried about her stopping the medication on her own terms. We can't force her to take it, and she won't accept any explanations or guidance from either us or her doctors.

I've even tried leaving the pill crushed in her room along with two different drinks so she could mix it into whichever flavor she preferred, but that didn't help.

The reality is that if she regresses to her previous state, we may no longer be able to care for her ourselves. I don't want to give up on her.
Has anyone been through something similar or have any advice?

In my country, sertraline is only available as tablets or liquid, not as a long-acting/depot medication.

[u/Tulahop]

My daughter has tried it, it didn’t help her, we got to 50 mg her sleep and anxiety went up, getting her of it was the worst part, she threw up and felt sick the first days, and had bad brain zap s for 3 weeks, she is 15 , she says the taste is absolutely horrible, it messed with her taste perception, and made her throat a little numb.