Sodium channel blocker
Sodium Channel Blocker
A Sodium Channel Blocker (pronunciation: SO-dee-um CHAN-nel BLOK-er) is a type of drug that inhibits the flow of sodium ions through the sodium channels.
Etymology
The term "Sodium Channel Blocker" is derived from its function. "Sodium" refers to the chemical element, "Channel" refers to the pathway through which the ions move, and "Blocker" refers to the action of inhibiting or blocking the movement.
Function
Sodium Channel Blockers are often used in the treatment of various cardiac conditions. They work by blocking the sodium channels in the cell membrane, which inhibits the flow of sodium ions. This action can slow down the rate at which the heart beats, making them useful in treating conditions such as arrhythmia.
Types
There are several types of Sodium Channel Blockers, including:
- Class I antiarrhythmic agents: These are further divided into three subclasses (Ia, Ib, and Ic), each with different effects on the sodium channel.
- Local anesthetics: These drugs block sodium channels in neurons, preventing the propagation of action potentials and thus causing a loss of sensation.
Related Terms
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