u/Unlikely-Bee5040

My dads 67 and was diagnosed with stage 2 parkingsons 3 years ago. He was out on levodopa but he was having hallucinations and was passing out everywhere all the time because of it. The neurologist moved him to a different medication and he’s still passing out during the day and during random hours because of it. He does have memory issues because of the meds or his parkingsons that I’ve noticed over the last year. Can I get any advice from anyone who’s found the medication that helps them and doesn’t cause these side effects? Is there any form of treatment for parkingsons? If not, what’s the best available medication? I have no knowledge regarding this and I found this sub.