Lawsuits filed against Juul this week by the attorneys general of New York and California claim that the embattled company deliberately marketed and sold vaping products to young people — and helped create a public health crisis.

On Tuesday, the American Medical Association echoed those concerns and called for a sweeping ban on vaping products.

The lawsuits allege that the company specifically targeted young people with deceptive advertising, featuring flavors like mango, cool mint, crème brûlée and cucumber. They charge that the company failed to warn customers that the products contain nicotine, misrepresented them as a safer alternative to cigarettes and illegally sold them to minors. The attorney general of North Carolina announced a similar lawsuit in May.

The A.M.A., which represents the nation’s doctors, raised similar concerns in its statement on Tuesday, which pointed to a surge in young people using e-cigarettes and said the association had adopted a policy to urge regulators to “ ban the sale and distribution of all e-cigarette and vaping products, with the exception of those approved by the F.D.A. for tobacco cessation purposes and made available by prescription only.” (No vaping product currently on the market has been approved by the F.D.A. as a “smoking cessation” device, a spokeswoman said on Wednesday.)