Alopurinol 100 mg compressed – uses, doses, side effects and precautions. Explore the benefits and risks of this medicine for the treatment of certain medical conditions.

Alopurinol 100 mg compressed - uses, doses, side effects and precautions. Explore the benefits and risks of this medicine for the treatment of certain medical conditions.

The 100 mg tablets of allopurinol are medications that are frequently prescribed in the field of medicine. They are mainly used to treat conditions related to excessive accumulation of uric acid, such as gout and renal calculations. Alopurinol acts by reducing the production of uric acid in the body, thus avoiding its accumulation and the consequent health complications.

The active substance of allopurinol tablets is allopurinol, which belongs to a class of medications called oxidase xanthine inhibitors. The oxidase xanthina is an enzyme responsible for the production of uric acid in the body. By inhibiting this enzyme, allopurinol helps normalize uric acid levels and prevents episodes of drop attacks.

Alopurinol 100 mg tablets are presented in various forms, such as round and white tablets. The tablets are usually covered with film and provide a comfortable and precise dosage for patients. Each tablet contains 100 milligrams of allopurinol, which is the initial dose recommended for most people.

Important note: Alopurinol tablets must be taken exactly as prescribed by the health professional. It is important to follow the instructions provided in the container or by the prescribing doctor to ensure optimal results and minimize the risk of possible side effects or drug interactions.

Understanding the function and composition of Allopurinol 100 mg

Alopurinol 100 mg compressed compressed usually includes the active alopurinol substance, along with various inactive principles that contribute to the formulation of the medication. These inactive ingredients can include monohydrate lactose, microcrystalline cellulose, corn starch and magnesium stearate, among others. These excipients help provide the necessary stability, form and structure to the tablet, guaranteeing the effective administration of the active substance.

Important information:

  • Alopurinol should only be taken according to prescription of a healthcare professional, and the dose can vary depending on the patient’s status and their response to treatment.
  • Before starting Allopurinol, it is important to inform your healthcare professional of any pre-existing illnesses, current medications, and allergies, as certain illnesses or medications may interact with Allopurinol and cause adverse effects.
  • While taking Allopurinol, patients are advised to maintain adequate fluid intake to help prevent kidney stones, as the medication may increase the risk of stone formation.

Exploring the Mechanism of Action of Allopurinol 100 mg

Allopurinol works by inhibiting the enzyme xanthine oxidase, which plays a crucial role in the production of uric acid in the body. Xanthine oxidase is responsible for the conversion of hypoxanthine to xanthine and subsequently to uric acid. By blocking this enzyme, allopurinol reduces the production of uric acid, thereby lowering uric acid levels in the blood.

“Allopurinol inhibits the enzyme xanthine oxidase, thus reducing the production of uric acid in the body.”

This inhibition of xanthine oxidase also results in the accumulation of hypoxanthine and xanthine, which are more soluble and less likely to form uric acid crystals. Decreasing the production of uric acid and its conversion into soluble compounds helps prevent the formation of urate crystals, responsible for the painful symptoms associated with gout.

Furthermore, allopurinol not only decreases the production of uric acid, but also promotes the metabolism of uric acid in the body. It achieves this by increasing the activity of the enzyme uricase, which converts uric acid into allantoin. Allantoin is a more soluble compound and easier to excrete, which contributes to the effective elimination of uric acid from the body.

Xanthine Oxidase Inhibition: Promotion of uricasa activity:
Reduces uric acid production Improves uric acid metabolism
Prevents the formation of urate crystals Facilitates the excretion of uric acid

Discovering the Conditions and Ailments Allopurinol 100 mg can Help with

Gout: Gout is a form of arthritis that occurs due to the buildup of uric acid crystals in the joints, causing severe pain, inflammation, and swelling. Allopurinol 100 mg is often prescribed to people with gout to prevent recurrence of gout attacks. By reducing uric acid levels in the blood, this medication decreases the formation of uric acid crystals, thereby reducing the frequency and severity of gout attacks.

Kidney stones: Kidney stones are hard deposits of minerals and salts that can form in the kidneys. Elevated levels of uric acid can contribute to the development of certain types of kidney stones. Allopurinol 100 mg is sometimes used in individuals with recurrent uric acid kidney stones to reduce the levels of uric acid in the urine, thereby reducing the risk of stone formation.

Note: Allopurinol 100 mg should not be used during an acute attack of gout, as it may initially worsen symptoms. It is important to consult a healthcare professional for proper dosage and treatment of these conditions.

Lesch-Nyhan Syndrome: Lesch-Nyhan syndrome is a rare genetic disorder characterized by excessive production of uric acid. This disease affects several body systems and can cause severe neurological symptoms. Allopurinol 100 mg is sometimes prescribed to people with Lesch-Nyhan syndrome to reduce uric acid levels and treat certain complications associated with this disorder.

Conditions and ailments that can be relieved with Allopurinol 100 mg
Disease Main benefit of Allopurinol 100 mg
Drop Prevention of gout attacks and reduction of uric acid levels
kidney stones Reduction of uric acid levels in the urine, minimizing the risk of stone formation
Lesch-Nyhan syndrome Reduction of uric acid production and treatment of associated complications

Overall, Allopurinol 100 mg plays a vital role in the treatment of conditions and ailments related to excessive production or accumulation of uric acid. It is imperative to follow the prescribed dosage and guidelines provided by a healthcare professional for optimal effectiveness and safety.

Guidelines and Precautions for Effective and Safe Use of Allopurinol 100 mg

1. Consultation with a healthcare professional: Before starting treatment with Allopurinol 100 mg, it is essential to consult with a healthcare professional, such as a doctor or rheumatologist. This will evaluate the patient’s medical history, medication taken and general health to determine the suitability of Allopurinol 100 mg and its dosage. This step is crucial as it ensures personalized and tailored treatment plans.

2. Dose adjustments: The dose of Allopurinol 100 mg may vary depending on individual patient factors. In some cases, healthcare professionals may prescribe a higher or lower dose to achieve optimal therapeutic results. It is essential to strictly follow the dosage prescribed by the healthcare professional and avoid self-adjustment or discontinuation of medication without prior medical advice.

Table 1: Common dosing regime for allopurinol 100 mg compressed
Condition Dose Frequency
Drop 100 mg – 300 mg Once a day
Kidney calculations (uric acid) 200 mg – 300 mg Once a day
Renal failure (creatinine clearance & amp; lt; 10 ml/min) 100 mg Once a day

“It is essential to strictly follow the dosage prescribed by the healthcare professional and avoid sel f-adjustment or interruption of medication without prior medical advice.”

  1. Lifestyle modifications: Together with medication, certain modifications of lifestyle can contribute to the effectiveness of 100 mg allopurinol. These include maintaining a healthy weight, avoiding excessive alcohol consumption and adopting a low purine diet. It is advisable to consult a healthcare professional or a dietitian to receive guidance on appropriate dietary modifications.
  2. Control and monitoring: Regular control of serum levels of uric acid is important to assess the effectiveness of alopurinol 100 mg treatment. Health professionals can request periodic blood tests to evaluate urinary excretion of uric acid and other relevant parameters. In addition, it is crucial to go to the monitoring appointments programmed to address any questions, adjust the dose if necessary and guarantee the continuous suitability of the treatment.

Understanding the Potential Risks and Minimizing Them

1. Common side effects: Like any medication, allopurinol can have some common side effects that can occur in individuals. These may include gastrointestinal symptoms such as nausea, vomiting and diarrhea. It is important to take food medication to reduce the probability of experiencing these side effects. In addition, some people may experience cutaneous eruptions or itching. If any of these side effects becomes annoying or persistent, it is important to consult a health professional to obtain more guidance.

2. Allergic reactions: Although it is rare, some individuals may have an allergic reaction to allopurinol. The symptoms of an allergic reaction may vary from slight to severe and may include cutaneous, hives, swelling or difficulty breathing. If an allergic reaction sign appears after starting allopurinol, immediate medical attention should be sought. It is crucial to inform health professionals of any known allergy before starting to take this medication.

Note: It is important to follow the prescribed dose and not exceed the recommended limits. Taking higher doses of allopurinol can increase the risk of serious side effects and adverse reactions.

  • Periodic control: The routine control of blood tests is essential while taking allopurinol to ensure that medication is effectively controlling uric acid levels. They can periodically recommend complete hemograms and test function tests to evaluate possible complications.
  • Compliance with the Treatment Plan: To minimize the risks associated with allopurinol, it is essential to follow the prescribed treatment plan. Skipping dose or abruptly interrupting medication can lead to recurrent gout attacks or disease worsening.
Strategies to minimize risks
1. Take allopurinol with food to reduce gastrointestinal side effects.
2. Go to the doctor immediately before any allergic reaction sign.
3. Follow the prescribed dosage and avoid exceeding the recommended limits.
4. Submit routine controls through blood tests to evaluate possible complications.
5. Comply with the prescribed treatment plan to optimize gout management and uric acid levels.

Exploring medications and substances that may interact with Allopurinol 100 mg


  • Azathioprine: Azathioprine is an immunosuppressive medication usually used to prevent organ rejection in transplant receptors. When taken together with allopurinol, there is a greater risk of suppression of the bone marrow, which can lead to a decrease in the recount of white blood cells and greater susceptibility to infections.
  • Warfarin: Warfarin is an anticoagulant medication used to prevent the formation of blood clots. Allopurinol can inhibit the metabolism of warfarin, which increases the risk of hemorrhages. A close surveillance of warfarin levels and possible dose adjustments may be necessary when these two medications are used together.

Important: health professionals must be cautious by prescribing azathioprine and allopurinol simultaneously, closely monitoring the patient’s blood counts and considering possible alternative treatments if necessary. Similarly, it is essential to closely monitor warfarin levels if necessary to prescribe allopurinol together with warfarin to minimize the risk of hemorrhagic complications.


  1. Alcohol: Alcohol consumption while allopurinol can be increased can increase uric acid production in the body, counteracting the effects of medication. In addition, alcohol can also alter the liver capacity to metabolize the medication, which leads to an alopurinol accumulation in the body and potentially increases the risk of side effects.
  2. Caffeine: It has been shown that caffeine decreases the effectiveness of allopurinol. It can increase the excretion of uric acid in the urine, reducing the capacity of the medication to reduce uric acid levels in the blood.

IMPORTANT: Patients should be advised to limit or avoid alcohol consumption while taking allopurinol to ensure optimal medication efficacy. In addition, drinks with caffeine to avoid any potential interference with the therapeutic effects of allopurinol should be moderated.

Answering commonly asked questions about Allopurinol 100 mg

1. How should Allopurinol 100 mg be taken?

Alopurinol 100 mg tablets are usually taken orally once a day, with or without food. It is important to follow the dosing instructions provided by your doctor or pharmacist. The dose can vary depending on your health status and medical history. It is recommended to drink a lot of liquid while taking allopurinol to help prevent kidney stones. If you are not sure what is the correct dose or have any doubt, consult your doctor.

2. Are there any side effects of Allopurinol 100 mg?

Like any medicine, Alopurinol 100 mg can cause side effects on some people. The most frequent side effects are skin rashes, headache, drowsiness and gastrointestinal discomfort. It is important to keep in mind that not all people experience these side effects, which are usually mild and temporary. However, if you experience serious or persistent side effects, it is important that you request medical care. Your doctor may adjust the dose or suggest alternative treatments if the side effects become problematic.

Note: This block contains important information. It is important that you always report your doctor about any medication that you are currently taking, including medications without recipe and supplements, since they can interact with allopurinol and affect its effectiveness.

3. Can Allopurinol 100 mg be taken during pregnancy?

Alopurinol 100 mg security during pregnancy has not been established. It is recommended to consult with your doctor before taking this medication if you are pregnant or plan to get pregnant. Your doctor can evaluate possible benefits and risks and determine the best treatment for your status. It is important to weigh the potential benefits against any potential risk for the development fetus.

Author of the article
Dr.Greenblatt M.
Dr.Greenblatt M.
Medical oncologist at the Robert Larner College of Medicine, MD, at the University of Vermont

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