Nicotine Polacrilex, which meets USP (United States Pharmacopeia) or EP (European Pharmacopoeia) standards, is a common form of nicotine used in nicotine replacement therapies (NRTs) such as nicotine gum and lozenges. It's a resin complex that binds nicotine, allowing for controlled release when consumed orally. This form of nicotine delivery helps individuals reduce their dependence on smoking by providing a less harmful alternative. Nicotine Polacrilex can be found in various strengths and is typically available over-the-counter in pharmacies and retail stores as part of smoking cessation programs.