The present invention relates to combination therapies for treating Alzheimer's disease or an amyloidosis-associated pathological condition comprising co-administering a therapeutically effective amount of a first compound, and a therapeutically effective amount of a second compound. In certain embodiments, the first compound or the second compound inhibits AB peptide polymerization; is an anti-inflammatory; improves cognitive function, mood, or social behavior; is associated with Tau or alpha-synuclein; or regulates amyloid peptide washout.