Nicotine Polacrilex Gum USP. For smokers over 24 cigarettes a day; 4 mg. If you smoke less: Try SunMark Nicotine Polacrilex Gum USP, 2 mg. Nicotine medicine to help you stop smoking. Refill for use with stop smoking plan in starter kit. Not for sale to persons under 18 years of age. Proof of age required. Not for sale in vending machines or from any source where proof of age cannot be verified.