Pharmacists definitely know more about side effects and what you should know about taking one drug combined with any others or supplements you take. They can not and will not say " don't take this.." or " Do you know there are multiple studies showing it raises the risk of dementia" etc.. - pharmacists cannot discourage a person from following a doctor's recommendation, per se, (unless the recognize a drug is dangerous combined with another prescription drug) although they certainly are great at explaining any side effects and answer questions