zyn vs cigarettes Cigarettes: How Much Safer Really? FDA authorizes maker of ZYN

This article from the Minnesota Department of Health covers the nuance better than I could

The microscopic particles, which are smaller than 2.5 micrometers in diameter, are considered particularly harmful because they are small enough to lodge deep into the lungs and pass into other organs, causing serious health risks

Her agency selectively responded to requests for public records, and refused to release records regarding policies on pesticide contamination

Contraindications: Ipratropium bromide inhalation aerosol is contraindicated in patients with a history of hypersensitivity to soya lecithin or related food products such as soybean and peanut