Yes, there are some
Thanks for your query.
The commonest and most expected side effect of all the three drugs after long use is addiction.
Besides the above, each drug has its own side effect profile but not serious enough that may need stoppage. The common side effects of Zapix(Clonazepam) are Drowsiness, Interference with cognitive and motor performance, Euphoria (Mostly due to anxiolytic properties) etc.
Melthix (Flupentixol) can cause Muscle rigidity
, Hypokinesia, Hyperkinesia, Dry mouth, Constipation
, excessive salivation
, Blurred vision
, excessive sweating
Divaa (divalproex sodium) have least side effects and is safer for long period consumption. Rarely it can cause long standing nausea.
Hope, I answered your query.
Wish you good health.