Does taking plaquenil and/or cymbalta cause hair breakage/shedding? i've been experiencing it since i was put on them.

Not necessarily: We need to know more about your health and why you're taking his medications. It may be the underlying medical problem is the cause for you to have the symptoms. I would with not initially expect these two medications to cause hair breakage but consider more your medical problems discuss this with your physician and if necessary see a dermatologist