I was diagnosed with PD about 18-months ago. Until now I have been on Madopar during the day and Primidone in the evenings. My dyskinesia has become more apparent and I have been switched to Stalevo to try and help with this. After several days I am not convinced that I am seeing any noticeable difference.m Does anyone else have experience of switching medication and was it more/less effective? I am not convinced that the Primidone is particularly useful but one question at a time!
Apologies if this Subject has been covered before.

Hi Peter, we just wanted to take a moment to welcome you to the forums. When it comes to medication and dosages we encourage you to speak to your GP and Parkinson’s nurse, of course, but you will also learn from our lovely community’s advice and experiences. Please be aware you can also search our website at for info on medication, or call us at 0808 800 0303 for free and confidential support. We hope you’ll enjoy being a part of our wonderful forum family!
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I was diagnosed about 20 months ago and put on Madopar - initially low dose, then slightly higher which worked brilliantly until, during lockdown I developed dyskinaesia too and have returned to taking lower dose but more frequently. It has helped with the dyskinaesia although possibly doesn’t have quite as positive effect on other symptoms as higher dose though it varies depending on the day - don’t know if this will be any help for you. I wasn’t on Primidone and don’t know anything about that.