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.
Sections. Sciatica patients may experience two different types of spinal injections. One is for diagnosis and the other is for pain management. The type used for diagnosis is also known as a spinal nerve block.he spinal injection more commonly associated with sciatica is an epidural steroid injection. In this procedure, a physician injects a steroid called cortisone into the area around the affected portion of your spine, and it reduces the inflammation and irritation caused by the pressure on your sciatic nerve.