Propranolol in Primary Progressive Aphasia

Propranolol will be given on a titration schedule in which participants will begin with small doses of the drug and increase to a larger dosage over the course of three weeks. Propranolol will be taken for a total of 9 weeks.

Magnetic Resonance Imaging (MRI) will be performed at 3 Tesla and 7 Tesla, for both propranolol and placebo arms.

Placebo will be given on the same schedule as the propranolol regime.