My uncle has a problem of excess salivation from jan 2015. He can't speak and gulp food properly.he takes liquid only. His daily medicines are as follows- chloropromazine ,espazine plus, calmpose daily one dose each at night . He also takes glykind and adelphen daily.please let me know the excess salivation cause and medicine to cure it asap.his age is 64 yrs.

He is taking quite a mix of drugs! Why hasn't he told his doctor in the last 6 months? Some of those drugs are alien to me in the US. I'm not even going to look them up.
He needs to make it CLEAR that he can't even eat solid foods, or speak.
He also needs to make a list of when he started on each drug.

Let his doctor work with you.

I think the "drooling" is a side effect of taking all those drugs. Talk to his caregiver or doctor, because the drugs he takes are from a doctor. His drooling is the least of his illness.