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.
Treatment for Severe Sciatica. In circumstances of severe pain, most patients simply want to find relief. They do not question the consequences of said relief, nor the fact that the methods of providing it are likely to be temporary, disappointing and even dangerous. When a person is in pain, they will do anything to make it stop.