Final answer:
Methyldopa is classified as a false transmitter because it is converted to a neurotransmitter-like substance while reducing neuronal activity.
Step-by-step explanation:
The primary reason that methyldopa is classified as a false transmitter is because it is converted to a neurotransmitter-like substance while also reducing neuronal activity. Methyldopa is converted to alpha-methylnorepinephrine by the adrenergic nerve ending, which mimics the effects of norepinephrine. However, methyldopa reduces neuronal activity and blocks the removal or reuptake of the neurotransmitter from the synapse.