Tramadol is an opioid painkiller for moderate to severe pain that simpler painkillers are not controlling — after surgery or injury, and in some chronic pain conditions. It causes drowsiness, carries a real risk of dependence, and interacts with a wide range of medicines including common antidepressants.

What is Tramadol?

Tramadol is a synthetic opioid analgesic, and it works in two ways at once — which is unusual and explains much about it.

First, it acts on opioid receptors, the same system morphine and codeine work through, reducing the perception of pain. It is considerably weaker at this than morphine.

Second, it increases levels of serotonin and noradrenaline in the spinal cord, dampening pain signals travelling to the brain. That second mechanism is why tramadol is sometimes useful for nerve pain where a conventional opioid is not — and it is also why it interacts with antidepressants, which act on the same chemicals.

Tramadol is a prodrug: the liver converts part of it into the form that acts most strongly on opioid receptors. People vary genetically in how fast they do this, which is part of why some find it very effective and others find it does little.

It is a Schedule 5 medicine in South Africa, prescription-only, dispensed as capsules, tablets, slow-release tablets, drops and injection. Brand names include Tramacet, Tramahexal and Austell Tramadol.

What is Tramadol commonly used for?

Tramadol is prescribed for moderate to severe pain where simpler options are insufficient:

Pain after surgery.
Pain after significant injury, including fractures.
Severe back pain, usually short-term.
Osteoarthritis pain not controlled by paracetamol or anti-inflammatories.
Nerve pain, where the serotonin and noradrenaline effect can help.
Cancer pain, as part of a wider plan.
Some chronic pain conditions, under review.

It occupies a middle position: stronger than paracetamol or a combination codeine product such as Synaleve, weaker than morphine.

It is intended for defined periods. Long-term opioid use for chronic non-cancer pain has been substantially reconsidered internationally — the evidence for sustained benefit is weaker than once assumed, while dependence and tolerance are well established. If you have been taking tramadol for months, that is worth reviewing with your doctor, not because you have done anything wrong but because the evidence has moved.

How Tramadol fits into this medicine category

Within pain medicines, tramadol sits on the opioid step of what is often described as a pain ladder:

Simple analgesics — paracetamol — mild pain.
Anti-inflammatories — diclofenac, ibuprofen — pain with inflammation.
Weak opioid combinations — codeine with paracetamol.
Tramadol — moderate to severe pain.
Strong opioids — morphine and similar.

Corticosteroids such as prednisone are not painkillers at all; they suppress inflammation, and inflammatory pain eases as a result.

Tramadol is often prescribed alongside paracetamol or an anti-inflammatory rather than instead of them, because different mechanisms combine well and allow less opioid to be used. See the pain, inflammation and musculoskeletal medicines hub.

What to check before using Tramadol

Do not drive or operate machinery until you know how it affects you. Drowsiness and slowed reactions are common, particularly at the start.

Tell your prescriber and pharmacist if:

You take an antidepressant — SSRIs, SNRIs, tricyclics or MAOIs. Combined with tramadol these raise the risk of serotonin syndrome, and the combination needs care. This is among the most important interactions in everyday practice, because both medicines are common.
You have epilepsy or a history of seizures. Tramadol lowers the seizure threshold.
You have breathing problems — asthma, COPD, sleep apnoea. Opioids suppress breathing.
You have kidney or liver disease.
You have a history of dependence on any substance.
You have a head injury or raised pressure in the skull.
You are pregnant or breastfeeding.
You take other sedating medicines — benzodiazepines, sleeping tablets, antihistamines, or anything for anxiety.
You take triptans for migraine, linezolid, or St John’s wort — all raise serotonin.

Avoid alcohol. It adds to sedation and to the suppression of breathing.

Follow the dispensing label; this page does not set doses.

Possible cautions and when to ask a pharmacist or doctor

Serotonin syndrome is uncommon but serious. Symptoms include agitation, confusion, rapid heartbeat, high blood pressure, muscle twitching or rigidity, heavy sweating, shivering, and diarrhoea. It can develop within hours of starting or changing a dose. Seek urgent medical attention if these appear, particularly if you also take an antidepressant.

Dependence develops more easily than people expect. Needing it more often, taking more than prescribed, feeling unwell without it, or planning around the supply are all worth discussing with a doctor. This is common and treatable, and no clinician will be surprised.

Do not stop abruptly after prolonged use. Withdrawal — restlessness, sweating, aches, anxiety, difficulty sleeping, diarrhoea — is unpleasant. Longer use is tapered.

Constipation is close to universal, along with nausea, dizziness, dry mouth and drowsiness.

Seizure risk rises at higher amounts and alongside certain medicines.

Combination products containing tramadol and paracetamol exist. If you take one, do not add separate paracetamol.

Seek urgent medical attention for slow or shallow breathing, extreme drowsiness or difficulty waking, seizures, or symptoms of serotonin syndrome. If an overdose is suspected, go to an emergency department with the packaging.

Related medicine guides

Frequently asked questions

What is tramadol 50 mg used for? Moderate to severe pain that simpler painkillers are not controlling — after surgery or injury, in osteoarthritis, and in some nerve pain.

Is tramadol a strong painkiller? It sits in the middle. Stronger than paracetamol or codeine combinations, weaker than morphine.

Can I take it with my antidepressant? Only with medical advice. The combination raises the risk of serotonin syndrome. Tell your prescriber and pharmacist about every antidepressant you take.

Is tramadol addictive? Dependence can develop, which is why it is prescribed for defined periods and is a Schedule 5 medicine. Take it as directed and discuss any escalating need with your doctor.

Can I drink alcohol while taking it? No. Alcohol adds to sedation and the suppression of breathing.

Can I stop taking it suddenly? Not after prolonged use — withdrawal symptoms are likely. Ask your doctor about tapering.

What Is Tramadol Used For?