Hi Kimi
i know the side effect list is frightening, but most people don't suffer any side effects; they are there because a small number of people do and doctors need to keep an eye out for any patient who does. When someone has epilepsy, it is far better to take the appropriate treatment, rather than risk having repeated seizures which can cause injury (because people lose control of their bodies and fall over) or even, with repeated uncontrolled seizures, eventual brain damage.
Sodium valproate is standard 'first-line' treatment. That means doctors try it first. If it doesn't suit your ds, there are several other drugs that can be used.
Speak to the doctors about your concerns. Ask them about initial reactions to the drug; when I was first diagnosed and put on medication, it really affected me but your body adjusts and it's fine after a few weeks. If you think about it, epilepsy is like having an electrical storm in your brain. The medicine calms everything down. So, just at first, it can slow down your thinking ? it's like operating in a bit of a fog. But as your body gets used to it you get back to normal. Do ask the doctors about this and about how long it is likely to be before ds is stable and they've found the right dose for him. If, after a few weeks, you are concerned that he's not OK, do go back and get the dose adjusted, or even try changing medicine. He may not need to take medicine long-term, some people can stop eventually. But if he needs the medicine, then it's far better to stay on it than risk having seizures, especially as a child could be really embarrassed and feel different from his friends.
Do look at the websites that Twiglett posted, and talk to the epilepsy charities ? this one is the UK's leading epilepsy charity that offers support and information for people with epilepsy and their families.
Epilepsy can be a frightening thing at first, but it doesn't mean your ds will be any different to any other child. It doesn't mean people are stupid, or have to limit what they do. If it's any comfort, I take anti-convulsant medicine every day and I have what many people would consider a high-powered job, a good social life (when ds allows!) and a family of my own.
Best wishes