Is it legal for a doctor to CALL in a narcotic over the phone to a pharmacy?

In the United States, it is generally illegal for a doctor to call in a prescription for a narcotic (controlled substance) over the phone. However, some exceptions exist, such as for certain Schedule III-V drugs, where a verbal prescription may be allowed. Additionally, emergency situations can permit phone prescriptions for narcotics, but they typically require follow-up with a written prescription. Regulations may vary by state, so it's important to consult local laws for specific guidelines.