What is a narcotic by medical definition? By medical definition, narcotics are substances used to treat moderate to severe pain. In fact, the word ânarcoticâ is taken from the Greek word for âstuporâ. So, narcotic originally referred to substances that dull the senses and relieve pain.
The types of drugs that might be prescribed for sciatica pain include: 1  Anti-inflammatories. 2  Muscle relaxants. 3  Narcotics. Tricyclic antidepressants.  Anti-seizure medications.
For example, a heat pack placed on your piriformis muscle may help to reduce muscle spasms that could be causing your sciatica. Cold therapy slows circulation, helping to reduce inflammation, muscle spasms, and pain. Your physical therapist will alternate between hot and cold therapies.