Dear Doctor , Age 40, Weight 90kg, height 5 11 I consult with neurologist regarding heaviness and vertigo during walking and gone through all the test including MRI , Ultrasount, Thirod, B12 etc etc and all the reports shows normal and doctor prescribe me sarta 25 and after two month they have increases the dose by serta 50 , now the heaviness is reduced but not vanish completely doctor says you have to continous these medicines for more six months , kindly advice Dear Doctor, Age 40, Weight 90kg, height 5 11 I consult with neurologist regarding heaviness and vertigo during walking and gone through all the test including MRI, Ultrasount, Thirod, B12 etc etc and all the reports shows normal and doctor prescribe me sarta 25 and after two month they have increases the dose by serta 50 , now the heaviness is reduced but not vanish completely doctor says you have to continous these medicines for more six months , kindly advice