My doctor had my diagnosis placed on the label of my medication. Is this a violation of my rights? The diagnosis is sensitive in nature.

Why would you think this is a violation of your rights? Did the pharmacist show the bottle of medication to all of the patrons at the pharmacy that day?

Most prescriptions have one or two reasons for being prescribed... i.e. Synthroid is prescribed for Hypothyroidism; Effexor is prescribed for depression and so on.

No, this is not a violation of your rights.