The herbal drugs that are used in the management of Alzheimer’s disease function by activating the neurotransmission of cholinergic neurons, promoting the inhibition of BACE1, α-synuclein and monoamine oxidase (MAO) proteins and preventing neuroinflammation are described in Figure 2 and Table 1. The gene discussed is BACE1; the disease is early-onset autosomal dominant Alzheimer disease.