My mother has begun taking Multaq and has terrible itching.

Hi,
Unfortunately, one of the listed side effects of dronedarone (brand name Multaq®), does include itching.

It is important for your mom to call her doctor, as even though this is can be a side effect of this medication, it needs to be reported if it is severe itching and/or itching that does not go away.

Only your mom's doctor can suggest and prescribe another type of medication for her specific condition, and/or provide remedies that are suitable for her condition to treat the side effect of itching. (There are possible drug interactions, even with topical prescriptions, so unfortunately only her doctor and/or pharmacist will be able to answer your question directly).

Here are the listed side effects (sounds like you already know these):
"Dronedarone may cause side effects. Tell your doctor if any of these symptoms are severe or do not go away:
* diarrhea
* nausea
* stomach pain
* vomiting
* heartburn
* weakness
* rash
* itching
* redness"
[Source: MedlinePlus]

Please let us know what your mom's doctor says about this side effect, and what his/her suggested remedy is.