Neuropathic pain, including trigeminal neuralgia, is among the most distressing and difficult-to-treat types of pain.
Standard therapies — such as anticonvulsants (e.g., carbamazepine, gabapentin, pregabalin) or antidepressants — help some people, but do not always provide complete relief.
In such situations, opioids come into play — potent analgesics historically associated mainly with cancer or postoperative pain. However, research shows that they can also play a significant role for some patients with neuralgia.
How Opioids Work
Opioids (including buprenorphine, morphine, oxycodone, tramadol) act on opioid receptors in the brain, spinal cord, and peripheral nervous system.
As a result, they:
- block the transmission of pain signals — inhibiting the pathway by which pain reaches the brain,
- reduce pain intensity, making it feel less severe,
- influence the emotional perception of suffering — improving pain tolerance and reducing anxiety and tension that amplify symptoms.
This means opioids can not only reduce pain itself, but also improve overall functioning and quality of life.
Are Opioids Effective in Neuralgia?
For many years it was believed that neuropathic pain does not respond to opioids. This belief stemmed from observations that the mechanism of neuropathic pain differs from, for example, traumatic or inflammatory pain.
We now know that opioids can work, although they are typically not a first-line treatment. Physicians consider them when:
- pain is very severe, chronic, and difficult to control,
- standard medications have not provided sufficient improvement.
Research shows that opioids do not always completely eliminate neuropathic pain, but they can significantly reduce it, giving the patient a chance to function relatively normally.
Importantly, they are often used in combination with other medications, such as gabapentin or amitriptyline. This combination approach achieves a better effect at lower doses and reduces the risk of side effects.
Side Effects of Opioids
Like any potent medication, opioids can cause adverse effects. The most common include:
- constipation — often requiring concurrent use of laxatives,
- nausea and vomiting — usually resolving after a few days of use,
- drowsiness and dizziness,
- in some cases — problems with concentration or memory.
With long-term use, tolerance may develop — the body becomes accustomed to the drug and higher doses are needed for the same analgesic effect. However, this does not always mean doses must be continuously increased — often switching to a different opioid or combining with other drugs helps.
Concerns About Addiction
This is one of the greatest psychological barriers for patients. Many worry that starting opioid therapy will lead to addiction.
The facts are:
- psychological addiction (compulsive drug-seeking for mood enhancement) is very rare in patients treated for pain,
- physical dependence (the body's reaction to abrupt discontinuation) is a natural phenomenon, but doctors can prevent it through gradual dose reduction,
- the risk of opioid misuse is significantly lower when treatment is managed by an experienced specialist and doses are strictly controlled.
In practice, this means that opioids used according to medical recommendations are a safe tool for fighting pain, and concerns about addiction are often greater than the actual risk.
Natalia — since 2014 I've been living with trigeminal nerve pain. I write in plain language, based on reliable sources and personal experience. Read my story →
Frequently Asked Questions
What is trigeminal neuralgia?
Trigeminal neuralgia is a chronic facial pain condition. It manifests as sudden, severe, usually one-sided pain attacks — often described as an electric shock. A single attack typically lasts from a few seconds to about two minutes.
What is the difference between neuralgia and neuropathy?
In simple terms: neuralgia primarily involves paroxysmal pain along a nerve, usually without loss of sensation. Neuropathy involves nerve damage that more often causes constant pain along with numbness and sensory loss.
Do regular painkillers help with neuropathic pain?
Usually not. Neuropathic pain responds poorly to paracetamol or anti-inflammatory drugs. Instead, medications that act on nerves are used, such as anticonvulsants like carbamazepine.
How does carbamazepine work for trigeminal neuralgia?
Carbamazepine is the first-line medication for trigeminal neuralgia. In a large proportion of patients, it provides effective pain control. It requires gradual dose adjustment and medical supervision.
What is the difference between gabapentin and pregabalin?
Both are anticonvulsant medications used for neuropathic pain. They differ in absorption and dosing characteristics. The choice and dosage should be determined by a physician.
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