Canadian Medical Guide > Chemicals and Drugs > Cardiovascular Agents > Sodium Channel Blockers Terms and Definitions




Sodium Channel Blockers

Medical Definition: A class of drugs that act by inhibition of sodium influx through cell membranes. Blockade of sodium channels slows the rate and amplitude of initial rapid depolarization, reduces cell excitability, and reduces conduction velocity.
Guide Notes: DF: NA CHANNEL BLOCK
Previously Indexed: Ion Channels (1982-1988),Sodium Channels/antagonists & inhibitors (1988-2001)

Sodium Channel Blockers Medical Definitions and Terms

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