HT, thanks for the query.
Welcome to H.C.M.C.
Sertralin is an anti-depressant drug.
Atorvastatine is lipid lowering agent.
Now , you see all these drugs are for different causes and so you or your's doctor will decide which ( all ) drug is safe and the best for you in your illness.
Pl don't be in panic.
Doctor himself will decide what is good for you according to your condition.