Generic Imitrex is used for the treatment of migraine headaches with or without aura (eg, flashing lights, wavy lines, dark spots). An aura is a strange feeling or visual disturbance that warns you of an attack. It is not used to prevent migraines.
Generic Neurontin is used for treating seizures associated with epilepsy. It may also be used for treating nerve pain associated with herpes zoster (shingles) infection (postherpetic neuralgia).
Generic Remeron (Mirtazapine) is an antidepressant. It is thought to positively affect communication between nerve cells in the central nervous system and/or restore chemical balance in the brain. Mirtazapine is used to treat major depressive disorder. Sometimes it may be suggested in a lower dosages to treat insomnia.