Final answer:
The FDA requires results of three phases of human testing, proof of effectiveness, and a marketing plan from a drug company before approving a new drug to be sold as a prescription medicine.
Step-by-step explanation:
The FDA requires several steps from a drug company before approving a new drug to be sold as a prescription medicine:
- Results of three phases of human testing: To ensure safety and effectiveness, drugs must go through three phases of clinical trials involving human subjects.
- Proof of effectiveness: The drug company must provide evidence that the drug is effective in treating the condition for which it is intended.
- Marketing plan: Although a marketing plan is not directly required for FDA approval, it is necessary for the drug company to have a plan in place for how they will promote and distribute the drug once it is approved.