Nicotine Polacrilex Gum USP. For smokers under 25 cigarettes a day; 2 mg. If you smoke more: Try SunMark Nicotine Polacrilex Gum USP, 4 mg. Nicotine medicine to help you stop smoking. Includes stop smoking plan with user's guide and audiotape. 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.