Dear Ram... I have gone through your post in which you have mentioned that you are undergoing treatment for BPPV.
The medications suggested by your Doctor are correct.
Betavert is Betahistine
which is an anti-vertigo preparation.
Zefretol is an anti convulsant & it has been prescribed to take care of any abnormal activity (uncontrolled or uncoordinated impulse generation) in the patch in your right frontal lobe
as revealed in the MRI, which may result in convulsions.
Atorfit is Atorvastatin
, takes care of the Lipid profile
Ginkocer is an extract of Ginkgo Biloba
, used as memory enhancer & anti-vertigo agent.
So...follow the dosages of these medications as advised by your Doctor.
There is no need to worry...you will be fine.
Wishing you a good health.
Thanks & Take care.