Can you verify the validity of this?

Nausea and vomiting can be a problem as Sinemet is being introduced. This is because the dose of carbidopa is not large enough to control these side effects. Ironically, the nausea and vomiting often get better as the levodopa/carbidopa dose is increased. The controlled-release preparation, Sinemet CRTM, is absorbed more slowly and far less likely to cause early side effects. Taking the drug with a light meal or snack can also help these side effects.

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I was prescribed teva-ranidine (ranitidine hcl) (zantac) 150mg . I took it 30 min before sinemet and found it mostly stopped nausea. I eventually didn't have to take it anymore even when sinemet dose increased. So it worked for me.