Sertraline side effects are they normal?

My daughter started on 25mg for 2 weeks and had a whole load of side effects, they started to calm down towards the end of 2 weeks, she then went up to 50mg for 5 weeks. She side effects returned and calmed down and definitely had an improvement and has been able to start going out, driving again etc. She’s now upping to 75mg and feeling side effects again. Could you half the dose to give your body chance to adjust? Hope the effects settle down, I know she felt like giving up on them and I kept encouraging her to keep going, and 7 weeks in she’s in a better place emotionally-not quite where she needs to be hence the higher dose.

Hi, HJE!
Yes, these are "normal" or at least not unexpected in some users when first starting treatment... they're some of the most common side effects:
"Very common (10% or more of users): Headache (up to 22%)"
"Very common (10% or more of users): Nausea (up to 26%), diarrhea/loose stools (up to 20%), dry mouth (up to 14%)
Side effects generally subside over just a few days to a week or so and can usually be managed with OTC remedies. Ask your pharmacist to recommend products that won't interact with your medication.
Most people will begin to show some improvement in the the first couple of weeks so stay positive.
Best regards and I hope you're feeling better quickly.
Wildcat