Harmful substances

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Across
  1. 2. using medications for purposes that aren't intended
  2. 6. a type of steroid that replicates testosterone
  3. 8. pre-cancerous sores on the inside of the mouth
  4. 10. acetylcholine impacts it
  5. 11. taking an excessive amount of a substance
Down
  1. 1. fastest method of absorption
  2. 3. active ingredient in marijuana
  3. 4. the most used illegal drug in the US
  4. 5. caused by drinking alcohol while pregnant
  5. 7. a cigarette as 69 chemicals that cause it
  6. 9. e-cigarettes emit it