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Apremilast (brand name Otezla, by Celgene) is a drug for the treatment of certain types of psoriasis and psoriatic arthritis. It may also be useful for other immune system related inflammatory diseases.
Memantine (Namenda) and a combination of memantine and donepezil (Namzaric) are approved by the FDA for treatment of moderate to severe Alzheimer's. Memantine is prescribed to improve memory, attention, reason, language and the ability to perform simple tasks.