Health care providers have to have permission from the federal government to provide medication-assisted treatment for opioid addiction. The Washington Post/Getty Images hide caption

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The Washington Post/Getty Images

Which would you choose — a daily tablet or a trip to the doctor for an allergy shot? Eddie Lawrence/Dorling Kindersley/Getty Images hide caption

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Eddie Lawrence/Dorling Kindersley/Getty Images

Immunotherapy Tablets For Dust Mite Allergy Reduce Asthma Risk

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Bupropion, sold under the name Wellbutrin, is an antidepressant often prescribed to help a person quit smoking. Michelle Del Guercio/Science Source hide caption

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Michelle Del Guercio/Science Source