Meclofenoxate
Meclofenoxate (Lucidril), also known as centrophenoxine, is a cholinergic drug used to treat the symptoms of senile dementia and Alzheimer's disease. It is an ester of dimethylethanolamine (DMAE) and 4-chlorophenoxyacetic acid (pCPA). DMAE is a natural substance, found especially in fish. pCPA is a synthetic compound that resembles a variety of plant hormones called auxins.