What is Tramadol?
Tramadol hydrochloride is a centrally acting opioid analgesic used for the management of moderate to moderately severe pain in adults. It has a dual mechanism of action, combining opioid receptor activity with inhibition of monoamine reuptake. Tramadol is a prescription-only controlled medicine in the majority of EU member states and is available in immediate-release and modified-release formulations.
How does Tramadol work?
Tramadol’s analgesic effect results from two complementary mechanisms that work synergistically:
- Opioid receptor agonism: Tramadol and its active metabolite O-desmethyltramadol (M1) bind to mu-opioid receptors in the central nervous system, inhibiting the ascending transmission of pain signals and modulating pain perception. The M1 metabolite has approximately 200 times the affinity for mu-opioid receptors compared to the parent compound.
- Monoamine reuptake inhibition: Tramadol inhibits the reuptake of serotonin and noradrenaline (norepinephrine) in the central nervous system, pathways that are central to the body’s descending pain-modulation system. This component contributes to tramadol’s efficacy in neuropathic pain.
- Combined analgesia: The interaction between these two mechanisms provides a broader analgesic profile than pure opioids, with some evidence of effectiveness in conditions such as diabetic neuropathy and fibromyalgia.
The extent of the opioid component depends partly on CYP2D6 metabolism. Poor metabolisers produce less M1 metabolite and may experience reduced analgesia; ultra-rapid metabolisers may experience heightened opioid effects.
Who is Tramadol for?
Tramadol is indicated for adults (18 years and over) with moderate to moderately severe pain that is not adequately managed by non-opioid analgesics. Clinical indications typically include:
- Musculoskeletal pain: Severe back pain, joint pain, or soft tissue injuries not responding to NSAIDs or weaker analgesics
- Post-operative pain: Pain following surgical procedures requiring more than mild analgesia
- Neuropathic pain: Pain arising from nerve damage or dysfunction, such as diabetic peripheral neuropathy, postherpetic neuralgia, or radiculopathy
- Cancer-related pain: As part of the WHO analgesic ladder for moderate pain
- Chronic pain conditions: Under specialist supervision when other treatments have been insufficient
Tramadol is not appropriate for children, patients with epilepsy or a lowered seizure threshold, patients taking MAO inhibitors, those in acute opioid withdrawal, and patients with acute intoxication by alcohol, hypnotics, or psychotropic medicines. Se requiere una evaluación médica completa antes de emitir cualquier receta.
Posología
Tramadol is available in immediate-release (IR) and modified-release (MR) formulations. The choice between formulations and the dosing schedule should be determined by a doctor based on the patient’s pain pattern and needs.
| Formulation | Starting Dose | Titration | Maximum Daily Dose |
|---|---|---|---|
| Immediate-release (capsules/tablets) | 50–100 mg every 4–6 hours | Increase as needed under supervision | 400 mg/day |
| Modified-release (tablets) | 100–150 mg twice daily | Increase as clinically needed | 400 mg/day |
| Elderly patients (>75 years) | Lower starting doses | Slower titration | 300 mg/day (guidance varies) |
Modified-release tablets must be swallowed whole — they must never be crushed, chewed, or broken, as this releases the full dose immediately and risks serious opioid toxicity.
Tramadol should be used at the lowest effective dose for the shortest duration consistent with the patient’s treatment goals.
Efectos secundarios
As with all opioid medicines, Tramadol carries important risks that patients and prescribers should weigh carefully against the benefits of treatment.
Efectos secundarios frecuentes (pueden afectar a más de 1 de cada 10 personas)
- Nausea (very common, particularly on initiation)
- Dizziness and vertigo
- Headache
- Drowsiness and sedation
- Constipation
- Dry mouth
- Sweating
Efectos secundarios poco frecuentes pero graves
- Seizures: Tramadol lowers the seizure threshold and can cause convulsions, particularly at higher doses, in patients with epilepsy, or when combined with medications that lower the seizure threshold (antidepressants, antipsychotics, bupropion). This is one of tramadol’s most clinically significant risks.
- Serotonin syndrome: The combination of tramadol’s serotonin reuptake inhibition with SSRIs, SNRIs, MAO inhibitors, triptans, or linezolid can trigger serotonin syndrome — a potentially life-threatening condition characterised by agitation, confusion, rapid heart rate, high temperature, and muscle rigidity.
- Dependence and withdrawal: Physical and psychological dependence can develop with regular use. Abrupt discontinuation should be avoided; tapering under medical supervision is recommended.
- Respiratory depression: At high doses or when combined with other CNS depressants, tramadol can dangerously suppress breathing.
- Hypoglycaemia: Cases of hypoglycaemia have been reported in patients taking tramadol.
This is not a complete list of side effects. Refer to the EMA-approved Summary of Product Characteristics for full prescribing details.
How to get Tramadol online in Europe
Tramadol is a prescription-only controlled medicine in most EU member states. No puede dispensarse legalmente sin una receta válida de un profesional médico autorizado.
Prescrivia opera como plataforma intermediaria tecnológica: no prescribimos medicamentos, no empleamos médicos ni vendemos medicamentos. Nuestra plataforma conecta a los pacientes con médicos independientes registrados en la UE que pueden realizar evaluaciones de salud en línea confidenciales.
El proceso funciona de la siguiente manera:
- Complete una evaluación de salud: Responda a un conjunto estructurado de preguntas de salud covering your medical history, current medications (particularly any serotonergic medicines or CNS depressants), pain history, and prior analgesic use.
- Revisión médica: Un médico independiente registrado en la UE revisa su evaluación. If Tramadol is clinically appropriate for your situation, they may issue a prescription. If it is not appropriate — or if a safer alternative exists — the doctor will advise accordingly.
- Prescripción y dispensación: Si se emite una receta, se remite a una farmacia asociada autorizada de la UE, que dispensa y envía el medicamento directamente a usted.
Importante: Prescrivia no garantiza que se emita una receta. Todas las decisiones de prescripción son tomadas de forma independiente por profesionales médicos cualificados en función de sus circunstancias clínicas individuales.
Información importante de seguridad
No utilice Tramadol si usted:
- Are under 18 years of age
- Have epilepsy or a history of seizures
- Are taking or have recently taken MAO inhibitors (within 14 days)
- Are in acute opioid withdrawal
- Have acute alcohol intoxication or are under the influence of hypnotics, opioid analgesics, or psychotropic medicines
- Are known to be an ultra-rapid CYP2D6 metaboliser and at risk of serotonin toxicity
Informe a su médico antes de starting Tramadol if you have:
- A personal or family history of epilepsy or seizures
- A history of opioid dependence or substance misuse
- Liver or kidney disease
- Head injury or raised intracranial pressure
- Depression, anxiety, or are taking any antidepressant medication
- Adrenal insufficiency or hypothyroidism
- Prostate enlargement or urinary retention
Interacciones medicamentosas: Tramadol has clinically significant interactions with SSRIs, SNRIs, MAO inhibitors, triptans, linezolid (risk of serotonin syndrome), anticoagulants (warfarin — risk of altered INR), CYP2D6 and CYP3A4 inhibitors and inducers, antiepileptics (carbamazepine reduces tramadol efficacy), and other CNS depressants including alcohol and benzodiazepines. Informe siempre a su médico de todos los medicamentos que toma actualmente durante la evaluación.
Modified-release tablets must never be crushed, broken, or chewed.
Fuentes
La información médica de esta página se basa en las siguientes fuentes:
- European Medicines Agency (EMA). Tramadol hydrochloride — Summary of Product Characteristics. Disponible en: ema.europa.eu
- World Health Organization (WHO). WHO Model List of Essential Medicines — Medicines for pain and palliative care. who.int
- Grond S, Sablotzki A. Clinical pharmacology of tramadol. Clin Pharmacokinet. 2004;43(13):879-923.
- Shadnia S, et al. Tramadol intoxication: A review of 114 cases. Hum Exp Toxicol. 2008.
Este contenido se revisa periódicamente para reflejar las directrices clínicas actualizadas. Se proporciona únicamente con fines informativos y no constituye asesoramiento médico. Consulte siempre a un profesional sanitario cualificado para obtener asesoramiento relevante para sus circunstancias de salud individuales.
Frequently asked questions
- What is Tramadol used for?
- Tramadol is a prescription opioid analgesic used for the management of moderate to moderately severe pain in adults. It is commonly prescribed for musculoskeletal pain, post-operative pain, neuropathic pain, and pain associated with cancer or chronic conditions when non-opioid analgesics are insufficient.
- How is Tramadol different from codeine?
- Tramadol and codeine are both opioid-class analgesics, but tramadol has a dual mechanism of action: it acts on mu-opioid receptors and also inhibits the reuptake of serotonin and noradrenaline. This makes tramadol effective for neuropathic pain as well as nociceptive pain. Tramadol is generally considered stronger than codeine and carries a higher risk of serotonin syndrome.
- Can I get Tramadol online in Europe?
- Tramadol is a prescription-only controlled substance in most EU member states. Prescrivia is a technology intermediary platform connecting patients with independent EU-registered doctors who can assess whether Tramadol is clinically appropriate for your specific situation.
- What are the most common side effects of Tramadol?
- Common side effects include nausea, dizziness, constipation, headache, drowsiness, dry mouth, and sweating. The risk of serious side effects — including seizures and serotonin syndrome — increases when tramadol is combined with other serotonergic or CNS-active medicines.
- Can Tramadol cause dependence?
- Yes. Tramadol is an opioid and carries a recognised risk of physical and psychological dependence, particularly with prolonged use, higher doses, or in individuals with a personal or family history of substance use disorder. It should only be used under close medical supervision and for the shortest duration necessary.
Tratamientos
Prescrivia es únicamente una plataforma intermediaria. No prestamos servicios médicos, no prescribimos tratamientos ni dispensamos medicamentos. Todas las decisiones médicas son tomadas por médicos independientes registrados en la UE. Todos los medicamentos son dispensados por farmacias autorizadas de la UE. Esta plataforma facilita la conexión entre pacientes y profesionales sanitarios.