Camel Snus, the latest smokeless tobacco product to hit the American market, is not your grandfather’s chaw.

Available in three flavors and packaged in attractive tins, Snus does not have to be spit out and therefore can be used just about anywhere -- “at a concert, right in front of security guards,” “on a jet from Miami to L.A.,” or at an “overpriced tapas restaurant,” a promotional brochure suggests.

And Snus delivers a powerful dose of nicotine: eight milligrams in each pouch, a spokesman for the R.J. Reynolds Tobacco Company, which manufacturers Snus, acknowledged on Wednesday. A pouch amounts to a single dose.

That’s far more nicotine per gram than is present other popular chewing tobacco products, according to some researchers, who are concerned that Snus may turn out to be both carcinogenic and highly addictive.