carbamazepine-CR

Carbamazepine-CR is a **controlled-release oral formulation of carbamazepine**, an anticonvulsant and analgesic medication primarily used for managing certain types of seizures (epilepsy), pain associated with trigeminal neuralgia, and as a mood stabilizer in acute mania and the prevention of bipolar disorder episodes. The controlled-release (CR) formulation allows for slower, more sustained drug release, leading to more consistent blood levels and typically twice-daily dosing. **Mechanism of action:** Carbamazepine works mainly by blocking voltage-gated sodium channels on neuronal membranes, stabilizing hyperexcited nerve membranes, inhibiting repetitive neuronal firing, and reducing synaptic propagation of excitatory impulses. This reduces abnormal electrical activity in the brain, helping control seizures and neuropathic pain. It is also thought to modulate neurotransmitter release, increasing dopamine turnover and GABA transmission, which is believed to contribute to its mood-stabilizing effects[1][3][5]. **Indications:** Epilepsy (except for absence, myoclonic, or atonic seizures), trigeminal neuralgia, acute mania, and prevention of bipolar disorder episodes[3][5]. **Key safety notes:** Carbamazepine-CR can cause severe skin reactions (such as Stevens-Johnson syndrome), blood disorders, and significant drug interactions. Caution is necessary, especially in patients of Asian descent, due to genetic risks for severe cutaneous reactions[1][2][4].

Brand names

Tegretol CR

Other names

carbamazepine controlled-releasecarbamazepine CRcontrolled-release carbamazepine