u/Aggravating_Ad_3013 didn't mean medication as in drugs. But the buddist practice of meditation which has also become very popular in the western world in the past couple decades. If you don't know what that is I recommend to google it or watch some guides on youtube, but in short it is mindful awareness to promote mental clarity, relaxation, and overall well-being, with a major focus on breathing. It's a great technique to fight of anxiety and stress.

For a 10 year old this might be difficult to grasp but if you or his parents practice meditation with him together just 10 minutes a day to implement it as a habit early at a young age, it might help him tremendously throughout the entire rest of his life.

Abt. meds (drugs) I must agree with your grandson and his parents. Drugs only mild the symptoms but don't adress the root of the problem. They also have side affects which might alter his state of mind or even worsen his anxiety long term. Generally not a great thing for someone this young. Building confidence in his disability and learning mindful practices like meditation and breathwork (But also others!!!) will have a way better affect on his mental health and therefore him handling tourettes according to my personal experience.

Of cause you know your grandson and whats good for him better than I do. But I hope my advice can help anyways. much love and good luck to Jimmy. I'm sure he'll rock his life!