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Häufige Fragen zu Ibuprofen: Wirkung, Nebenwirkungen und Dosierung

Frequently asked questions about ibuprofen: effects, side effects and dosage

Ibuprofen is one of the most commonly used painkillers in the world, but many people know little about its effects and uses. This medication, which is often used to treat pain, inflammation and fever, is both available without prescription and versatile. Nevertheless, there is widespread confusion about dosage and possible side effects.

The chemical structure of ibuprofen and its specific stereochemistry are crucial to understanding its mechanism of action. As a non-steroidal anti-inflammatory drug (NSAID), it works by inhibiting the production of prostaglandins, which are important mediators of pain and inflammation. It has both a rapid onset and a long-lasting effect, making it a popular choice for many applications.

Introduction to ibuprofen

Ibuprofen is a non-steroidal anti-inflammatory drug (NSAID). It not only relieves pain, but also has an anti-inflammatory effect. The mechanism of action is based on the inhibition of cyclooxygenases (COX). These enzymes are responsible for the formation of prostaglandins, which mediate inflammation.

Ibuprofen is frequently used worldwide to treat pain, inflammation and fever. It has a particularly rapid effect on severe or acute pain.

Dosage forms of ibuprofen

  • tabletsFrequently taken for systemic pain.
  • Pain gelIs applied locally and provides targeted pain relief.

Composition

  • Sum formulaC13H18O2
  • Molar mass206.28 g-mol-1

Ibuprofen is one of the most widely used painkillers in the world. Thanks to its effectiveness and versatility, it is an essential medicine for the symptomatic treatment of a wide range of complaints. However, please note that taking ibuprofen with other medicines, especially antihypertensive medicines and during the last trimester of pregnancy, should be carefully considered.

What is ibuprofen?

Ibuprofen is a proven painkiller. It is used for acute and chronic joint inflammation and pain. As a non-steroidal anti-inflammatory drug (NSAID), it has a pain-relieving, anti-inflammatory and slightly antipyretic effect. The effect is achieved by inhibiting the enzyme cyclooxygenase (COX). This enzyme is responsible for the formation of prostaglandins, which mediate inflammation and pain.

The use of ibuprofen can be used systemically in tablet form or topically in the form of pain gels. This versatility enables targeted pain relief. Ibuprofen is available over the counter in various dosages. The recommended daily dose for adults is usually up to 1200 mg.

Chemical structure

Ibuprofen belongs to the group of phenylalkanoic acids. These were developed from chemical research into anti-inflammatory compounds. The chemical structure of ibuprofen contains a carboxylic acid group. This group is crucial for the anti-inflammatory effect.

The active ingredient inhibits the cyclooxygenases COX-1 and COX-2, which leads to a reduction in the synthesis of prostaglandins, which are hormones that promote inflammation. Ibuprofen was first patented as an anti-inflammatory drug in 1961 after preclinical tests had shown its effectiveness. The maximum level in the blood is reached approximately 1 to 2 hours after ingestion.

Stereochemistry

Ibuprofen exists as a mixture of stereoisomers. It contains both the R-form and the S-form. This structure can also be represented without taking the stereochemistry into account. The chemical name for ibuprofen includes specific stereomeric names, such as (RS)-2-(4-isobutylphenyl)propionic acid.

Stereochemistry plays a role in the effect of ibuprofen. It non-selectively inhibits cyclooxygenases I and II. The melting point of ibuprofen varies between 76 °C for the racemic compound and 54 °C for the enantiomers.

Mechanism of action

Pharmacodynamics

Ibuprofen is a widely used drug for the treatment of pain and inflammation. It belongs to the group of non-steroidal anti-inflammatory drugs (NSAIDs). The mechanism of action is based on the inhibition of cyclooxygenases I and II (COX 1 and 2). This inhibition reduces the formation of prostaglandins. Prostaglandins are substances that mediate pain and inflammation. This effect shows Ibuprofen has analgesic, anti-inflammatory and antipyretic properties. The effect lasts for around four to six hours. Ibuprofen can be taken in tablet form or applied as a pain gel.

Pharmacokinetics

After ingestion ibuprofen is mainly absorbed in the intestine, partly also in the stomach. The bioavailability is between 80 and 100 %. This means that almost the entire amount of the active ingredient enters the bloodstream. In the blood it binds Ibuprofen binds strongly to plasma proteins, namely 99 %. Approximately one to two hours after ingestion ibuprofen reaches its maximum concentration in the blood. The drug is mainly broken down in the liver by hydroxylation and carboxylation. Around 90 % of the metabolites are excreted via the kidneys. The elimination half-life of ibuprofen is about 1.8 to 3.5 hours.

Overall, it offers ibuprofen provides fast and effective pain relief and can be used flexibly, making it one of the most commonly used painkillers.

Pharmacodynamics

Ibuprofen is a non-steroidal anti-inflammatory drug (NSAID) with anti-inflammatory, analgesic and antipyretic properties. The pharmacodynamics of ibuprofen is based on the inhibition of the enzymes cyclooxygenase 1 and 2 (COX-1 and COX-2). This inhibition leads to a reduction in the production of prostaglandins, which trigger inflammation in the body.

Main effects of ibuprofen:

  • Anti-inflammatoryReduction of swelling and inflammation.
  • Pain reliefEffective in the treatment of acute and severe pain.
  • Fever reductionHelps to control flu-like infections.

The effect of ibuprofen usually lasts four to six hours. It is mainly absorbed in the intestine and achieves a bioavailability of between 80 % and 100 %. Metabolism is largely hepatic and 90 % is excreted via the kidneys. The elimination half-life is approximately 1.8 to 3.5 hours.

Ibuprofen is often suitable for the symptomatic treatment of rheumatoid arthritis and gout and should be used carefully in high doses to avoid adverse effects.

Indications for use

Ibuprofen is used for the symptomatic treatment of pain and inflammation. It combats the symptoms but not the cause. Common areas of application are acute and chronic joint inflammation and irritation caused by osteoarthritis. It is also used for headaches, toothache and fever. ibuprofen is also helpful. It is the drug of choice for dental analgesia and is used for acute menstrual cramps and rheumatoid arthritis. In a dosage of up to 400 mg, it is available without a prescription and is suitable for the short-term treatment of mild to moderate pain and fever.

Relief from pain

Ibuprofen belongs to the group of non-steroidal anti-inflammatory drugs (NSAIDs). It has an analgesic, anti-inflammatory and antipyretic effect. It is often used for toothache, menstrual pain and headaches in particular. It is also a recommended option for joint inflammation such as gout and rheumatoid arthritis. It also inhibits the formation of prostaglandins, which cause pain and inflammation. The maximum dosage for adults is 400 mg per intake, with a daily limit of 1,200 mg.

Treatment of inflammation

Ibuprofen is often used to treat inflammatory joint diseases such as gout and rheumatoid arthritis. It combats inflammatory reactions that cause pain, swelling and redness. By inhibiting the cyclooxygenases COX-1 and COX-2, it reduces the formation of prostaglandins. These play a central role in inflammatory processes. The doc® ibuprofen pain gel is applied externally and has a targeted effect without affecting the whole body. This relieves Ibuprofen relieves unpleasant inflammatory complaints by combating the symptoms.

Fever reduction

Ibuprofen reduces fever by inhibiting the production of prostaglandins. These are involved in raising the temperature. It is recommended to reduce fever in children and adolescents, especially as a suppository or juice. The effect lasts for about four to six hours. It can also be used for mild to moderate pain. For adults and adolescents aged 15 and over, the recommended dose for fever is between 200 and 400 mg, up to three times a day.

Use in special groups

Use in children

Ibuprofen is a common remedy for pain and fever in children aged 6 months and over. It helps with mild to moderate pain, such as toothache or fever. Ibuprofen is available in child-friendly forms such as syrup, juice and suppositories. The correct dose depends on the child's age and body weight. If the symptoms do not improve or worsen after three days, a doctor should be consulted.

Use during pregnancy

Ibuprofen should only be taken in the first and second trimesters of pregnancy after consulting a doctor. It is harmful in the third trimester as it can lead to serious problems in the unborn child, such as premature closure of the ductus arteriosus botalli. It is recommended to use paracetamol instead, as it is considered safer. During the breastfeeding period ibuprofen does not appear to pose a risk at recommended doses. If taken in the third trimester, the child's circulation should be monitored by Doppler ultrasound.

Use during breastfeeding

Ibuprofen passes into breast milk, but studies show that this is unlikely to pose a risk to the baby if used for a short time. With prolonged use, early weaning could be considered. It should always be taken in consultation with a doctor. It is advisable to use the lowest effective dose for the shortest possible duration. Studies to date show no negative effects on breastfed children.

Use in children

Ibuprofen is a common painkiller for children aged 6 months and over, available in age-appropriate doses. It is used to treat mild to moderate pain, such as teething pain, and to reduce fever. Various dosage forms are available for use in children, including antipyretic juices, syrups and suppositories.

Recommendations for use:

  • Pay attention to the child's age and body weight.
  • Use Ibuprofen for more than three days without medical advice.
  • A doctor should be consulted if the symptoms worsen.

Table: Ibuprofen dosage according to age

Age

Recommended form

6 months +

Antipyretic syrup

Infants

Antipyretic juice

Older children

Suppositories

It is important to choose the correct dosage and form for the age in question to achieve optimal results. When treating fever and pain, safe and effective use is crucial.

Side effects

Ibuprofen is a widely used painkiller, but can have side effects. It mainly acts in the gastrointestinal tract and can lead to various complaints. If taken over a longer period of time, certain effects must be taken into account in order to avoid damage to health.

Common side effects

Gastrointestinal problems such as heartburn, abdominal pain, nausea, vomiting, flatulence and diarrhea are common. Patients with chronic inflammatory bowel diseases such as Crohn's disease and ulcerative colitis may experience a worsening of their condition. In addition, many users report headaches, dizziness, tiredness and sleep disorders. These symptoms can increase, especially with high doses and frequent use. Greater caution is required here, especially in older patients.

Rare but serious side effects

Serious side effects may occur in rare cases. These include hypersensitivity reactions such as skin rashes and itching. There is also a risk of gastrointestinal bleeding, which can lead to anemia, especially in older people. In addition ibuprofen can cause stomach and duodenal ulcers and inflammation of the oral mucosa. Other complications include possible kidney problems and asthma attacks. A doctor should be consulted immediately if such symptoms occur.

Side effects

Frequency

Symptoms

Frequent

High

Heartburn, nausea, headaches

Serious

Rare

Skin rashes, bleeding, kidney problems

Ibuprofen should be taken with caution and consultation with a doctor is advisable to minimize risks. Pregnant women in particular, especially in the last trimester, should avoid taking it.

Interactions with other medicines

Importance of the information

Ibuprofen is a versatile painkiller that also helps with inflammation and fever. It belongs to the group of non-steroidal anti-inflammatory drugs (NSAIDs) and works by inhibiting the cyclooxygenase enzymes. These enzymes are responsible for the formation of inflammatory messenger substances. The pain-relieving and anti-inflammatory effect makes ibuprofen an important option for the treatment of pain and inflammation. It is particularly important for patients with heart disease, ibuprofen responsibly and in an informed manner. Knowledge of the effects and possible side effects helps to make informed decisions about the use of the medication.

List of interactions

Ibuprofen interacts with many other medications. These interactions can lead to increased risks, especially for gastrointestinal bleeding.

  • Anticoagulant medication: Ibuprofen can increase the effect of acetylsalicylic acid and warfarin, which increases the risk of bleeding.
  • Blood pressure-lowering medicationWhen taking ibuprofen the effectiveness of diuretics and ACE inhibitors may be reduced.
  • Lithium: ibuprofen can reduce the excretion of lithium, which can lead to an increased plasma concentration and possibly to intoxication.
  • Other NSAIDsconcomitant use increases the risk of gastrointestinal bleeding.
  • Low-dose acetylsalicylic acid: Ibuprofen can reduce the antiplatelet effect.

In addition, alcohol should be avoided while taking ibuprofen as it can increase the side effects. There is also an increased risk of gastrointestinal ulcers and bleeding when combined with cortisone preparations, anticoagulants or certain antidepressants.

Importance of the information

Importance of information about Ibuprofen

Ibuprofen is a versatile painkiller. It not only helps with pain, but also with inflammation and fever. It acts as a non-steroidal anti-inflammatory drug (NSAID) by inhibiting cyclooxygenase enzymes. These are responsible for the formation of inflammatory messenger substances.

Important points for use:

  • Pain relief: Fast and long-lasting.
  • Anti-inflammatory: Effective for rheumatoid arthritis and other inflammations.
  • Fever reduction: Useful for flu-like infections.

Considerations for patients with heart disease:

  • Benefits and risks should be carefully weighed up.
  • Informed use is crucial.

Possible side effects:

  • Stomach pain
  • Increased risk with long-term use

The information on the effects and possible side effects of ibuprofen is essential. Doctors and patients should be familiar with this in order to make informed decisions about taking ibuprofen use. Responsible use is important for the health and safety of patients.

Ibuprofen in veterinary medicine

Ibuprofen is rarely used in veterinary medicine due to safety concerns and lack of approval. In Germany and Switzerland, there are no approved veterinary medicinal products based on ibuprofen. ibuprofenbased veterinary medicines. This severely restricts its use in veterinary medicine. Use in food-producing animals is prohibited because ibuprofen is not listed in the relevant regulation.

Indications in veterinary medicine

Some veterinarians prefer the use of ibuprofen in horses. However, this is only permitted if it is entered in the equine passport. A waiting period of six months before slaughter must be observed. In other animals, especially dogs, gastrointestinal side effects occur more frequently. Other approved NSAIDs for dogs are therefore the better choice. The sale of ibuprofen in veterinary medicine remains limited due to these restrictions and the strict regulations.

Dosage and safety

In human medicine ibuprofen up to 400 mg is available without prescription. It is used to treat pain, inflammation and fever. The risk of cardiovascular side effects increases with high doses of 2400 mg or more per day. This risk does not exist for people who take up to 1200 mg per day. Ibuprofen can, however, reduce the effect of antihypertensive medication and increase the risk of kidney problems. People with gastrointestinal disorders should Ibuprofen Only use under medical supervision.

Summary of the risks of ibuprofen:

  • Cardiovascular risks: Increased at >2400 mg/day.
  • Antihypertensive drugs: Effect may be weakened.
  • Kidney risks: Especially in elderly patients.
  • Gastrointestinal problems: Caution with existing illnesses.

Always consult a doctor or vet if you are unsure in order to minimize risks.

Warnings and precautions

Contraindications

Ibuprofen must not be taken if there is a hypersensitivity or allergy to the active substance. People who have experienced shortness of breath or asthma after taking NSAIDs should Ibuprofen should be avoided. In the case of stomach or duodenal ulcers or active bleeding Ibuprofen is contraindicated. Caution is also advised in cases of severe liver or kidney dysfunction. Pregnant women in the last trimester should Ibuprofen due to possible risks for the fetus.

Recommendations for safe use

Before taking ibuprofen it is advisable to seek the advice of a doctor. This is especially true when using other medications. High doses ibuprofen can increase heart risks. Information on this should be included in the product information. Taking low-dose acetylsalicylic acid at the same time can be helpful. This reduces the risk of heart attacks and strokes. Avoid taking with other NSAIDs or salicylates to reduce the risk of gastrointestinal ulcers.

Contraindications

Contraindications for ibuprofen

Ibuprofen should not be taken if you are hypersensitive or allergic to the active ingredient. People with asthma attacks, shortness of breath or swelling after taking NSAIDs should also refrain from taking ibuprofen. ibuprofen should also be avoided.

Contraindications:

  • Stomach or duodenal ulcers
  • History of repeated ulcers
  • Active bleeding
  • Severe liver or kidney dysfunction
  • Heart failure

Special caution:

  • Pregnant women in the last trimester of pregnancy should Ibuprofen should be avoided. The risk of complications for the fetus is increased.

These precautions are important for the safe use of ibuprofen. If you are unsure, you should always consult a doctor or pharmacist.

Conclusion

Ibuprofen is a widely used non-steroidal painkiller. It has an anti-inflammatory, pain-relieving and slightly antipyretic effect by inhibiting the formation of prostaglandins. Prostaglandins are substances in the body that mediate inflammation and pain.

The bioavailability of ibuprofen is 80 to 100 % and it is mainly absorbed in the intestine. After ingestion, the highest plasma levels are reached in one to two hours. About 99 % of the ibuprofens in the blood are bound to plasma proteins.

Ibuprofen is metabolized in the liver and the metabolites are excreted via the kidneys. The elimination half-life is approximately 1.8 to 3.5 hours.

Overview of forms of application:

  • Systemic application: Tablet form
  • Topical application: Pain gels

Advantages of ibuprofen:

  • Fast and effective pain relief
  • Suitable for acute and severe pain

Despite the benefits Ibuprofen should be taken with caution, especially in high doses or when used concomitantly with other medicines.

Effect of ibuprofen

Ibuprofen is a medicine that relieves pain, inhibits inflammation and reduces fever. It works by blocking the cyclooxygenases COX-1 and COX-2. These enzymes are responsible for the formation of prostaglandins, which trigger pain and fever.

Effects of ibuprofen

  • Pain reliefOccurs in adults after taking 200 to 400 mg.
  • Anti-inflammatoryRequires higher doses of up to 800 mg.
  • Fever reductionEffective as temperature regulation is influenced.

Possible uses

  1. Systemic applicationAs tablets.
  2. Topical applicationAs a pain gel that penetrates through the skin into deeper tissue layers.

After ingestion Ibuprofen reaches its maximum plasma level within one to two hours. This leads to rapid pain relief.

Side effects

The inhibition of prostaglandin production can also lead to stomach discomfort, as it reduces the production of mucus in the stomach.

These properties make ibuprofen ideal for the symptomatic treatment of mild to moderate acute pain, such as rheumatoid arthritis or flu-like infections.

Source: istockphoto  Jorge Martinez

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