Chlorphenoxamine is primarily used as an antihistamine and anticholinergic agent. It is effective in treating symptoms associated with allergies, such as itching, sneezing, and runny nose. Additionally, it is used to manage motion sickness and vertigo by reducing the activity of the vestibular system. Its anticholinergic properties make it useful in alleviating symptoms of Parkinson's disease, such as tremors and rigidity, by balancing neurotransmitter levels in the brain. Chlorphenoxamine is also employed in some cases to reduce excessive sweating and control muscle spasms. It is often formulated in combination with other medications to enhance its therapeutic effects.