08 Neurologic Medications
Connects commonly tested neurologic medications with their drug classes, brand-name examples, principal uses, and important treatment distinctions and cautions.
How to connect medicines with their uses
Neurologic medications are commonly matched by generic name, example brand name, drug class or key action, and principal use. Brand names are examples; products and availability can vary. Medication selection depends on the diagnosis and patient-specific factors.
Treatment roles may differ even when medicines relate to the same condition. In particular, migraine medicines may be used for acute attack relief or prevention, while many dementia medicines manage symptoms rather than cure or stop the underlying disease.
Antiseizure medicines and key associations
, also called anticonvulsants, reduce seizure activity. The appropriate drug depends on seizure type. These medicines should not be stopped abruptly without prescriber guidance because seizures may worsen.
Levetiracetam (Keppra): binds synaptic vesicle protein SV2A; used for focal and generalized seizures.
Phenytoin (Dilantin): a sodium-channel blocker used for focal and tonic-clonic seizures. Product formulations are not always interchangeable.
(Tegretol): a sodium-channel blocker used for focal seizures and trigeminal neuralgia.
Lamotrigine (Lamictal): a sodium-channel blocker used for focal and generalized seizures.
/ divalproex (Depakote): a broad-spectrum antiseizure drug used for several seizure types and migraine prevention, not acute migraine relief. carries important fetal and liver risks and requires careful clinical assessment.
(Zarontin): a T-type calcium-channel blocker used for absence seizures.
Topiramate (Topamax): has multiple antiseizure actions and is used for seizures and migraine prevention.
(Neurontin) and pregabalin (Lyrica): gabapentinoids that bind voltage-gated calcium-channel subunits; used as adjunctive seizure therapy and for neuropathic pain.
Lorazepam (Ativan) and diazepam (Valium): benzodiazepines that enhance GABA-A activity and provide rapid seizure control, including emergency treatment of prolonged seizures.
High-yield associations are with absence seizures, with trigeminal neuralgia, and and topiramate with migraine prevention.
Parkinson disease therapies
Parkinson disease involves reduced dopaminergic signaling. (Sinemet) is the core symptomatic therapy: levodopa is converted to dopamine in the brain, while carbidopa limits levodopa breakdown outside the brain and reduces peripheral adverse effects. It treats bradykinesia, rigidity, and other motor symptoms, but improves symptoms rather than curing the disease.
Other commonly tested medication classes may be used alongside or instead of levodopa in selected patients:
Pramipexole (Mirapex), ropinirole (Requip), and rotigotine (Neupro): that stimulate dopamine receptors and are used for motor symptoms.
Selegiline (Eldepryl) and rasagiline (Azilect): MAO-B inhibitors that reduce dopamine breakdown and may lessen symptoms.
Entacapone (Comtan): a COMT inhibitor that extends levodopa’s effect, especially for wearing-off symptoms.
Amantadine (Gocovri): has dopaminergic and glutamatergic effects; it may help motor symptoms and levodopa-related dyskinesia.
Benztropine (Cogentin): an antimuscarinic that may reduce tremor. Its anticholinergic effects limit use, especially in older adults.
Parkinson medications should not be stopped abruptly without medical advice.
Dementia medicines and treatment roles
Most established dementia drugs manage symptoms rather than cure or stop the underlying disease. For Alzheimer’s disease, increase acetylcholine signaling, while modulates NMDA-type glutamate receptors.
Donepezil (Aricept): an acetylcholinesterase inhibitor used for Alzheimer’s symptoms across disease stages.
Rivastigmine (Exelon): a cholinesterase inhibitor used for Alzheimer’s disease and Parkinson disease dementia.
Galantamine (Razadyne): a cholinesterase inhibitor used for mild-to-moderate Alzheimer’s symptoms.
(Namenda): an NMDA-receptor antagonist used for moderate-to-severe Alzheimer’s symptoms; it may be combined with donepezil.
can cause gastrointestinal effects, among others. commonly causes dizziness or confusion.
Lecanemab (Leqembi) and donanemab (Kisunla) are for selected patients with early Alzheimer’s disease. These therapies target amyloid and are distinct from symptom-managing drugs. They require specialist evaluation and MRI monitoring because of the risk of amyloid-related imaging abnormalities (ARIA), including potentially serious brain swelling or bleeding.
Migraine, neuromuscular, and multiple sclerosis treatments
Migraine treatment distinguishes acute attack relief from prevention. (Imitrex) is a triptan and serotonin 5-HT₁B/₁D agonist used for an acute migraine attack, not routine prevention. Propranolol (Inderal) is a beta-blocker used for migraine prevention; topiramate and selected other agents may also be used for prevention.
Other commonly tested neurologic treatments include:
(Mestinon): an acetylcholinesterase inhibitor used for myasthenia gravis; it improves nerve-to-muscle transmission and is a symptomatic treatment, not an immunosuppressant.
Baclofen (Lioresal): a GABA-B agonist and antispasticity agent used for spasticity, including spasticity associated with multiple sclerosis.
Interferon beta-1a (Avonex, Rebif): an immunomodulator for relapsing forms of multiple sclerosis that reduces inflammatory disease activity.
Glatiramer acetate (Copaxone): an immunomodulator used for relapsing forms of multiple sclerosis.
(Neurontin) and pregabalin (Lyrica): gabapentinoids used for neuropathic pain.
Duloxetine (Cymbalta): an SNRI used for neuropathic pain.
Across neurologic conditions, and pregabalin are associated both with adjunctive seizure treatment and with neuropathic pain. The central distinctions are the indication and treatment role: acute migraine relief differs from prevention, and symptomatic treatment of myasthenia gravis differs from immunomodulation.