Sir, I Have Had Reduced Density Of Hair For A

Sir,
I have had reduced density of hair for a long time. I used ketoff lotion and hair oil for the past year.I was not satisfied with the result, so I went to see a dermatologist.She suggested hair 4u,juene oil and tugain for controlling hair loss and before that to reduce my dandruff problem she suggeted propysalic and salisia for a few days along with supplements.
with so many chemicals and medicines , I am feeling there might be drastic effects?
Is this a good option to continue as per the prescription?