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Efferalgan: what is it for and how to drink it

by Alivia Nyhan
Published: Last Updated on

Efferalgan is a well-known and widely used medicine in Spain, its administration is orally and it is available as effervescent tablets. Efferalgan is part of the group of drugs known as analgesics and antipyretics , which makes it indicated for the symptomatic treatment of pain of moderate intensity, such as osteoarthritis, rheumatoid arthritis, headaches, dysmenorrhea, dental pain and musculoskeletal pain. In addition, it is used to treat febrile states, which makes it a very useful drug to avoid pain in catarrhal and flu processes, headaches, toothaches and migraines.

In this FastlyHealarticle we inform you in more depth about what Efferalgan is for and how to take it.

Mechanism of action of the Efferalgan

This drug is indicated for a wide variety of symptoms due to its multiple mechanisms of action , which include:

  • Inhibits the synthesis of prostaglandins in the central nervous system. Prostaglandins are a key molecule in pain sensation.
  • It blocks the generation of impulse in the pain circuits at the level of the peripheral nervous system. By inhibiting pain-related pathways, this sensation will decrease.
  • It acts on the hypothalamic center that regulates temperature, which makes it a drug indicated to control feverish states.

Composition and dosage of Efferalgan

The active substance is paracetamol. The excipients are sodium saccharin, sorbitol, anhydrous citric acid, sodium bicarbonate, anhydrous sodium carbonate, docusate sodium, polyvidone, potassium benzoate cs

Efferalgan should be taken orally and depending on age the dosage is different:


It should not be given to children under 6 years of age. The dose varies according to weight:

  • For children weighing less than 27 kg (approximately 8 years), choose a more appropriate presentation than the 500 mg tablet.
  • For children weighing 27 to 40 kg (8 to 13 years): take 1 tablet of 500 mg every 6 hours if necessary. No more than 4 tablets a day.
  • For children weighing 41 to 50 kg (12 – 15 years): take 1 tablet of 500 mg every 4 hours if necessary. No more than 6 tablets a day.


In adults (weighing more than 50 kg) take 1 to 2 tablets of 500 mg every 4 hours if necessary. No more than 6 tablets a day.

What is the Efferalgan for

Efferalgan is often used to treat pain , especially, it is usually recommended in situations, diseases and conditions such as:

  • Osteoarthritis
  • Rheumatoid arthritis.
  • Headache.
  • Migraine.
  • Dental pain.
  • Muscle aches
  • Bone pain like the flu.
  • Fever.
  • Menstruation pain.

Also, there is a variety of this drug called Efferalgan Otis. This medicine is indicated for pain or inflammation of the ears and throat.

Efferalgan contraindications and warnings

This drug is mainly contraindicated to:

  • People with hypersensitivity to paracetamol or any of its components.
  • People with liver disease.

Some warnings about the use of this medicine are:

  • In patients with severe renal impairment, doses should be taken at least 8 hours apart.
  • Each 1 g tablet of Efferalgan contains 552 mg of sodium, this must be taken into account by patients on diets without sodium or low sodium, such as patients with hypertension.
  • Paracetamol is safe in pregnant women, but it is advisable to use it in short periods of time, that is, after 48-72 hours, its use should be discontinued.
  • Alcoholic people should not drink more than 2 grams every 24 hours.
  • People with liver, kidney, lung or heart problems should talk to their doctor.
  • If you are being treated for epilepsy you should also discuss it with your doctor.
  • If you are asthmatic or sensitive to acetylsalicylic acid, you should discuss it with the specialist.

Efferalgan overdose

Efferalgan being an effervescent drug, there is a low risk of overdose and it could only occur in general, in adults with doses greater than 10 g and children with 150 mg / kg of body weight.

The symptoms of overdose Efferalgan are:

  • Anorexia
  • Sickness
  • Vomiting
  • Abdominal pain
  • Pallor

These overdose symptoms usually appear 25 hours after the last dose is taken. These overdoses can cause great damage to the liver, as well as alterations in its functions that can become irreversible and even fatal. That is why overdose has to be treated very quickly, so that when the first symptoms appear, treatment can be stopped.

Efferalgan adverse reactions

When this drug is used correctly, side effects can be mild and transient, for example:

  • Allergic reaction with skin eruptions, which may be erythema, urticaria, skin rash, or sudden discomfort such as anaphylactic shock or Quincke’s edema. If any skin lesions appear, the drug should be stopped immediately.
  • Hepatic disorders in prolonged treatment with high doses.
  • In very isolated cases, blood disorders such as thrombocytopenia, neutropenia, or hemolytic anemia have occurred.

Among the most common side effects of Efferalgan, affecting 1 in 1,000 patients, are:

Among the rare side effects , affecting 1 in 10,000:

This article is merely informative, at FastlyHeal .com we do not have the power to prescribe medical treatments or make any type of diagnosis. We invite you to see a doctor in the case of presenting any type of condition or discomfort.

If you want to read more articles similar to Efferalgan: what it is for and how to take it , we recommend that you enter our category of Medication and medical tests .

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