Julio has just realized that his pills were laced with something. What does this MOST likely mean?

Question

1. A more addictive drug was added to his labeled drug ingredient.
2. Julio is in rehab and is gradually reducing his drug dosage.
3. A doctor has prescribed a drug to Julio that interacts with other drugs.
4. Julio will feel better after taking this safer version of his pill.

Answer 1

1. A more addictive drug was added to his labeled drug ingredient.