Nicotine is bonded to an ion exchange resin made of polacrilex to form nicotine polacrilex, also referred to as nicotine resin complex. When utilized in items like nicotine gum or lozenges, this intricate structure enables the nicotine to release gradually. When the gum or lozenge is chewed or dissolved, the resin functions as a carrier, gradually delivering nicotine into the bloodstream through the oral mucosa. This controlled release system supports attempts to stop smoking and lessens cravings for nicotine.