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ANACLOSIL 500 mg powder for injectable solution and for infusion

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About the medicine

How to use ANACLOSIL 500 mg powder for injectable solution and for infusion

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This page provides general information and does not replace a doctor’s consultation. Always consult a doctor before taking any medication. Seek urgent medical care if symptoms are severe.

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Introduction

Package Leaflet: Information for the User

Anaclosil 500 mg Powder for Solution for Injection

Cloxacillin (as sodium)

Read all of this leaflet carefully before you start using this medicine because it contains important information for you.

  • Keep this leaflet, you may need to read it again.
  • If you have any further questions, ask your doctor, pharmacist, or nurse.
  • This medicine has been prescribed for you only. Do not pass it on to others. It may harm them, even if their signs of illness are the same as yours.
  • If you get any side effects, talk to your doctor, pharmacist, or nurse. This includes any possible side effects not listed in this leaflet. See section 4.

Contents of the pack:

1. What Anaclosil is and what it is used for

2. What you need to know before you use Anaclosil

3. How to use Anaclosil

4. Possible side effects

  1. Storage of Anaclosil
  2. Contents of the pack and further information

1. What Anaclosil is and what it is used for

The active substance of Anaclosil is cloxacillin.

Cloxacillin is an antibiotic belonging to the penicillin family.

Antibiotics are used to treat bacterial infections and are not effective against viral infections such as the flu or the common cold.

It is essential that you follow the instructions regarding dosage, administration interval, and treatment duration indicated by your doctor.

Do not store or reuse this medicine. If you have any leftover antibiotic after completing treatment, return it to the pharmacy for proper disposal. Do not throw medicines down the drain or in the trash.

Anaclosil is indicated for the treatment of the following infections:

  • Bone and joint infections.
  • Sepsis: Severe infections with systemic impact.
  • Endocarditis: Infections of a part of the heart called the endocardium.
  • Meningitis: Infection of the membranes covering the Nervous System.
  • Genital and urinary tract infections.
  • Respiratory infections.
  • Skin and soft tissue infections.

Anaclosil is also indicated for the prevention of infections after neurological interventions such as internal cerebrospinal fluid diversion.

Doctor consultation

Not sure if this medicine is right for you?

Discuss your symptoms and treatment with a doctor online.

2. Before taking Anaclosil

Do not take Anaclosil:

  • If you are allergic to the active substance.
  • If you are allergic (hypersensitive) to penicillin.
  • If you are allergic (hypersensitive) to cephalosporins. Although allergy to cephalosporins does not presuppose the existence of an allergy to this penicillin, it should be determined if the patient has previously experienced immediate, moderate, or severe allergic reactions to a cephalosporin, in which case it is recommended to avoid the use of this penicillin.

Warnings and precautions

Consult your doctor, pharmacist, or nurse before starting to use Anaclosil if you:

  • Are allergic to a specific group of antibiotics called beta-lactams (penicillins or cephalosporins).
  • If during a previous antibiotic treatment (even with another family of antibiotics), you have had any type of allergic reaction such as hives or other rashes, itching, sudden swelling of the face and neck.
  • Suffer from kidney or liver disease.
  • If you have a history of seizures and/or epilepsy, especially in patients with impaired renal or hepatic function.
  • Are taking oral contraceptives, it is recommended to use an alternative, effective, and safe method during treatment and until one week after, as the concomitant use of Cloxacillin and combined oral contraceptives may decrease the effectiveness of the contraceptive.

This medicine may interfere with laboratory tests: If you are going to undergo any diagnostic test (including blood tests, urine tests, etc.), inform your doctor that you are taking this medicine, as it may alter the test results.

Children and adolescents

This medicine should be administered with caution in neonates, due to the risk of hyperbilirubinemia due to competition at the bilirubin binding sites to serum proteins.

Other medicines and Anaclosil

Inform your doctor or pharmacist if you are taking, have recently taken, or may take any other medicine, including those obtained without a prescription. It is especially important that you inform your doctor if you are taking:

  • Methotrexate, which is a medicine indicated for some forms of arthritis and for the treatment of psoriasis.
  • Other antibiotics (medicines used for infections caused by bacteria), such as chloramphenicol, tetracyclines, macrolides, or sulfonamides. These antibiotics may decrease the effect of Anaclosil.
  • Aminoglycosides, as treatment should be administered separately from Anaclosil.
  • Probenecid, which is a medicine for the treatment of gout, as it may increase the effect of Anaclosil.
  • Warfarin or other anticoagulant medicines.

Pregnancy, breastfeeding, and fertility

If you are pregnant or breastfeeding, or think you may be pregnant or are planning to have a baby, ask your doctor for advice before taking this medicine.

This medicine passes into breast milk. Ask your doctor for advice before breastfeeding your baby. Treatment should be interrupted in case of diarrhea, candidiasis, or skin rashes in the baby.

Driving and using machines

There is no evidence of effects on the ability to drive or use machines.

Anaclosil contains sodium

This medicine contains 26.4 mg of sodium (a major component of kitchen/table salt) per vial. This is equivalent to 1.3% of the maximum recommended daily dietary intake of sodium for an adult.

3. How to use Anaclosil

Anaclosil will be administered to you by a qualified healthcare professional (doctor or nurse).

It will be administered directly (by intravenous direct route) over 3-4 minutes or by drip into a vein (intravenous infusion) over approximately 1 hour.

The recommended dose for adults will be as follows:

  • In the treatment of infections: 2,000 mg every 4-6 hours.
  • In the prevention of infections before a neurological operation: a dose of 2,000 mg of Anaclosil before the intervention, and 1,000 mg every 2 hours during the intervention if it is prolonged.

In case of severe kidney and liver problems, the dose administered will be half of the recommended dose.

Use in children and adolescents

The recommended dose is 100 to 200 mg per kilogram of body weight and per day, divided into 4-6 administrations, not exceeding 12 g per day.

If you are given too much Anaclosil

Tell your doctor or nurse immediately if you think you may have been given too much Anaclosil.

If you miss a dose of Anaclosil

Tell your doctor or nurse immediately if you think you may have missed a dose.

If you have any further questions on the use of this product, ask your doctor or nurse.

Medicine questions

Started taking the medicine and have questions?

Discuss your symptoms and treatment with a doctor online.

4. Possible side effects

Like all medicines, Anaclosil can cause side effects, although not everybody gets them.

Very rare (may affect up to 1 in 10,000 people): severe skin redness, Stevens-Johnson syndrome, toxic epidermal necrolysis.

Frequency not known (cannot be estimated from the available data):

  • Allergic reactions on the skin: (Itching, skin rash, hives)
  • Diarrhea, nausea, and vomiting.
  • Decrease in the number of neutrophils and platelets in the blood.
  • Neurological symptoms: Seizures (disorder of mental status accompanied by muscle contractions). This effect is more frequent in people with significantly impaired renal function.
  • Jaundice (yellowing of the skin or the white part of the eyes), increased liver enzyme values, and hepatitis (inflammation of the liver)

Similarly, in patients sensitized to penicillins, allergic reactions such as swelling of the face, lips, mouth, tongue, or throat may occur, which can cause difficulty swallowing or breathing (angioedema).

  • Gastrointestinal tract disorders such as severe or persistent diarrhea, or if blood or mucus is observed in the stool.

Reporting of side effects

If you experience any side effect, talk to your doctor, pharmacist, or nurse, even if it is a possible side effect not listed in this leaflet. You can also report side effects directly through the Spanish Medicines and Healthcare Products Agency's (AEMPS) online platform: https://www.notificaram.es. By reporting side effects, you can help provide more information on the safety of this medicine.

5. Storage of Anaclosil

This medicine does not require any special storage conditions.

Do not use this medicine after the expiry date which is stated on the carton, after EXP: The expiry date is the last day of the month stated.

Keep this medicine out of the sight and reach of children.

Once opened, this medicine should be used immediately. The reconstituted and diluted solution should be used immediately.

Do not use this medicine if you notice the presence of particles or if the reconstituted solution is cloudy.

Medicines should not be disposed of via wastewater or household waste. Ask your pharmacist how to dispose of medicines no longer required. This will help protect the environment.

6. Contents of the pack and further information

Composition of Anaclosil

The active substance is cloxacillin (as sodium salt). Each vial contains 500 mg of cloxacillin (as sodium salt).

Appearance of the product and pack contents

Anaclosil is a powder for solution for injection and infusion, white or almost white in color, packaged in a 10 mL glass vial.

For intravenous direct administration, the powder will be reconstituted in 2.5 mL of water for injections.

For continuous infusion administration, the powder reconstituted in 2.5 mL of water for injections will be withdrawn from the vial and added to a bag of at least 100 mL of sodium chloride 9 mg/mL (0.9%) or glucose 50 mg/mL (5%) for infusion in the hospital.

Anaclosil is available in packs of 1 or 100 vials.

Not all pack sizes may be marketed.

Marketing authorization holder and manufacturer

Laboratorio Reig Jofre, S.A.

Gran Capitán, 10

08970 Sant Joan Despí (Barcelona)

This leaflet was approved in August 2024

Detailed and updated information on this medicine is available on the website of the Spanish Agency for Medicines and Healthcare Products (AEMPS) http://www.aemps.es

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This information is intended only for healthcare professionals:

Important: Consult the summary of product characteristics before prescribing the medicine.

Anaclosil should be reconstituted with water for injections (for slow intravenous administration) and then diluted in at least 100 mL of sodium chloride 9 mg/mL (0.9%) or glucose 50 mg/mL (5%) for infusion.

Sodium cloxacillin should not be used in infusion bags containing protein hydrolysates, lipid suspensions, amino acids, blood, or serum.

The mixture of cloxacillin and aminoglycosides can cause substantial mutual inactivation, so they should not be mixed in the same infusion bag.

Only limited data are available on the compatibility of Anaclosil with other substances for intravenous administration; consequently, no additives or other medicines should be added to the Anaclosil single-dose vials, nor should they be infused simultaneously. If the same intravenous line is used for the sequential infusion of different medicines, the line should be flushed before and after the infusion with a 0.9% sodium chloride solution.

Reconstitution

To prepare the solution for slow intravenous administration (3-4 minutes), aseptic technique should be followed. Reconstitute the vial contents with 4 mL of water for injections, and gently rotate until the powder is completely dissolved. Avoid shaking or making rapid movements, as this may cause foam formation. The reconstituted product is stable for up to 6 hours at 25°C. From a microbiological point of view, the reconstituted product should be administered immediately by intravenous direct route or diluted immediately for continuous infusion administration.

Dilution

For infusion administration, the reconstituted solution should be diluted in at least 100 mL of 0.9% sodium chloride solution or 5% glucose solution for infusion. Do not shake the bag. The resulting solution is a clear, colorless, or pale yellow solution.

Infusion

Before administration, it should be visually checked that the reconstituted solution does not contain particles. Reconstituted solutions containing visible particles should be discarded.

Anaclosil should be administered as an intravenous infusion over approximately 1 hour.

Anaclosil should not be mixed with other medicines.

Each vial is for single use only.

Online doctors for ANACLOSIL 500 mg powder for injectable solution and for infusion

Discuss questions about ANACLOSIL 500 mg powder for injectable solution and for infusion, including use, safety considerations and prescription review, subject to medical assessment and local regulations.

4.4 (93)
Doctor

Tarek Agami

General medicine 11 years exp.

Dr. Tarek Agami is a general practitioner registered in both Portugal and Israel, with broad experience in family and preventive medicine. He offers online consultations for adults and children, providing personalised support for primary care needs, chronic disease management, and everyday health concerns.

Dr. Agami received clinical training and worked in leading medical institutions in Israel (Kaplan Medical Center, Barzilai Medical Center, Wolfson Medical Center) and Portugal (European Healthcare City, Viscura Internacional, Hospital Dr. José Maria Grande, Hospital Vila Franca de Xira). His approach combines international medical standards with individualised attention to each patient.

Main areas of consultation:

  • Diagnosis and treatment of acute and chronic conditions (high blood pressure, diabetes, respiratory infections, cardiovascular symptoms)
  • Evaluation of symptoms and guidance on further diagnostic testing
  • Preventive check-ups and regular health monitoring
  • Medical support during travel or after relocation
  • Treatment adjustments and lifestyle recommendations based on your personal history
Dr. Agami provides medical support for patients using GLP-1 medications (such as Ozempic or Mounjaro) as part of a weight loss strategy. He offers individualised treatment planning, regular follow-up, dose adjustment, and advice on combining medication with sustainable lifestyle changes. Consultations follow the medical standards accepted in Portugal and Israel.

Dr. Agami is committed to evidence-based, patient-centred care, ensuring that each person receives trusted medical support tailored to their health goals.

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€69
5.0 (40)
Doctor

Lina Travkina

Family medicine 13 years exp.

Dr. Lina Travkina is a licensed family and preventive medicine doctor based in Italy. She provides online consultations for adults and children, supporting patients across all stages of care – from acute symptom management to long-term health monitoring and prevention.

Areas of medical care include:

  • Respiratory conditions: colds, flu, acute and chronic bronchitis, mild to moderate pneumonia, bronchial asthma.
  • ENT and eye conditions: sinusitis, tonsillitis, pharyngitis, otitis, infectious and allergic conjunctivitis.
  • Digestive issues: gastritis, acid reflux (GERD), IBS, dyspepsia, bloating, constipation, diarrhoea, functional bowel symptoms, intestinal infections.
  • Urological and infectious diseases: acute and recurrent cystitis, bladder and kidney infections, prevention of recurrent UTIs, asymptomatic bacteriuria.
  • Chronic conditions: hypertension, diabetes, hypercholesterolemia, metabolic syndrome, thyroid disorders, excess weight.
  • Neurological and general symptoms: headache, migraine, dizziness, fatigue, sleep disturbances, reduced concentration, anxiety, asthenia.
  • Chronic pain support: back, neck, joint, and muscle pain, tension syndromes, pain associated with osteochondrosis and chronic conditions.

Additional care areas:

  • Preventive consultations and check-up planning.
  • Medical advice and follow-up consultations.
  • Test interpretation and diagnostic guidance.
  • Structured support for undiagnosed complaints.
  • Second opinion on diagnoses and treatment plans.
  • Nutritional and lifestyle support for vitamin deficiencies, anaemia, metabolic issues.
  • Post-operative recovery support and pain management.
  • Preconception counselling and postpartum support.
  • Immunity support and strategies to reduce frequency of infections.

Dr. Travkina combines evidence-based medicine with an attentive, personalised approach. Her consultations focus not only on treatment, but also on prevention, recovery, and long-term wellbeing.

If during the consultation it becomes clear that your case requires in-person assessment or specialised care outside of her scope, the session will be terminated and the payment fully refunded.

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€70
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Doctor

Hocine Lokchiri

General medicine 21 years exp.

Dr. Hocine Lokchiri is a French consultant with over 20 years of experience in General and Emergency Medicine. He works with adults and children, helping patients with urgent symptoms, infections, sudden health changes and everyday medical concerns that require timely evaluation. His background includes clinical practice in France, Switzerland and the United Arab Emirates, which allows him to navigate different healthcare systems and manage a wide range of conditions with confidence. Patients value his calm, structured approach, clear explanations and evidence-based decision-making.

Online consultations with Dr. Lokchiri are suitable for many situations when someone needs quick medical guidance, reassurance or a clear next step. Common reasons for booking include:

  • fever, chills, fatigue and viral symptoms
  • cough, sore throat, nasal congestion, breathing discomfort
  • bronchitis and mild asthma flare-ups
  • nausea, diarrhoea, abdominal pain, digestive infections
  • rashes, allergic reactions, redness, insect bites
  • muscle or joint pain, mild injuries, sprains
  • headache, dizziness, migraine symptoms
  • stress-related symptoms, sleep disturbances
  • questions about test results and treatment plans
  • management of chronic conditions in stable phases
Many patients reach out when symptoms appear suddenly and cause concern, when a child becomes unwell unexpectedly, when a rash changes or spreads, or when it’s unclear whether an in-person examination is necessary. His emergency medicine background is particularly valuable online, helping patients understand risk levels, identify warning signs and choose safe next steps.

Some situations are not suitable for online care. If a patient has loss of consciousness, severe chest pain, uncontrolled bleeding, seizures, major trauma or symptoms suggesting a stroke or heart attack, he will advise seeking immediate local emergency services. This improves safety and ensures patients receive the right level of care.

Dr. Lokchiri’s professional training includes:

  • Advanced Trauma Life Support (ATLS)
  • Basic and Advanced Cardiac Life Support (BLS/ACLS)
  • Pediatric Advanced Life Support (PALS)
  • Prehospital Trauma Life Support (PHTLS)
  • eFAST and critical care transthoracic echocardiography
  • aviation medicine
He is an active member of several professional organisations, including the French Society of Emergency Medicine (SFMU), the French Association for Emergency Physicians (AMUF) and the Swiss Society of Emergency and Rescue Medicine (SGNOR). In consultations, he works with clarity and precision, helping patients understand their symptoms, possible risks and the safest treatment options.
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€58
5.0 (5)
Doctor

Tomasz Grzelewski

Dermatology 21 years exp.

Dr Tomasz Grzelewski is an MD, PhD specialist in allergy, paediatrics, general practice and sports medicine, with a clinical focus on dermatology, endocrinology, allergology and sports-related health. He has more than 20 years of clinical experience and completed his medical training at the Medical University of Łódź, where he defended his PhD thesis with distinction. His doctoral research was recognised by the Polish Society of Allergology for its innovative contribution to the field. Throughout his career, he has gained extensive expertise in diagnosing and managing a wide range of allergic and paediatric conditions, including modern allergen desensitisation techniques. For five years, Dr Grzelewski served as the Head of two paediatric departments in Poland, managing complex clinical cases and leading multidisciplinary teams. He also worked in medical centres in the United Kingdom, gaining experience across both primary care and specialist environments. With over a decade of telemedicine experience, he has provided online consultations across Europe and is valued for his clear, structured and evidence-based medical guidance. Dr Grzelewski is actively involved in clinical programmes focused on modern anti-allergic therapies. As a Principal Investigator, he leads research projects on sublingual and oral allergen desensitisation, supporting evidence-based progress in allergy treatment for both children and adults. In addition to his background in allergology and paediatrics, he completed dermatology studies through the Cambridge Education Group (Royal College of Physicians of Ireland) and a Clinical Endocrinology course at Harvard Medical School. This advanced training enhances his ability to manage skin manifestations of allergies, atopic conditions, urticaria, endocrine-related symptoms and complex immunological reactions. Patients commonly seek his care for: 

  • seasonal and perennial allergies
  • allergic rhinitis and chronic nasal symptoms
  • asthma and breathing difficulties
  • food and medication allergies
  • urticaria, atopic dermatitis and skin reactions
  • recurrent infections in children
  • sports-related health questions
  • general family medicine concerns

Dr Tomasz Grzelewski is known for his clear communication style, structured medical approach and ability to explain treatment options in a concise and accessible way. His multidisciplinary background across allergy, paediatrics, dermatology and endocrinology allows him to provide safe, up-to-date and comprehensive care for patients of all ages.

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€80
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Doctor

Andrei Popov

General medicine 7 years exp.

Dr. Andrei Popov is a family physician with specialized training in the management of chronic pain. He provides video consultations for adults in Spain and across Europe: whether you have been living with pain for months that no one has been able to properly explain, or you need to resolve a health issue without waiting weeks for an appointment.

His approach is clear: to listen, organize your case, and provide you with a practical roadmap based on evidence-based medicine and adapted to your medical history and personal needs.

Pain: how he can help

  • Chronic pain (more than 3 months
  • Migraine and recurrent or high-intensity headaches
  •  Neck, lower back, back and joint pain
  •  Post-traumatic pain after injuries or surgeries
  •  Pain of neurological origin: neuralgia, neuropathic pain, fibromyalgia

General medicine

  • Frequent respiratory infections (cold, flu, persistent cough)
  • Hypertension, diabetes and metabolic disorders
  • Review of laboratory tests and MRI/CT reports (explained in clear language)
  • Preventive medicine and health monitoring
  • Second opinions and treatment adjustments (when clinically appropriate)

What the consultation is like
 Each session lasts up to 30 minutes. We review symptoms, medical history, medications and any tests you provide, and you finish the consultation with a clear treatment plan, defined next steps, and criteria to understand when follow-up may be needed. If warning signs are detected, he will clearly advise whether you need in-person care or urgent medical attention.

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€80

Frequently Asked Questions

Is a prescription required for ANACLOSIL 500 mg powder for injectable solution and for infusion?
ANACLOSIL 500 mg powder for injectable solution and for infusion requires a prescription in Spain. You can check with a doctor online whether this medicine may be appropriate for your situation.
What is the active substance in ANACLOSIL 500 mg powder for injectable solution and for infusion?
The active ingredient in ANACLOSIL 500 mg powder for injectable solution and for infusion is cloxacillin. This information helps identify medicines with the same composition but different brand names.
Who manufactures ANACLOSIL 500 mg powder for injectable solution and for infusion?
ANACLOSIL 500 mg powder for injectable solution and for infusion is manufactured by Laboratorio Reig Jofre, S.A.. Pharmacy brands and packaging may differ depending on the distributor.
Which doctors can assess the use of ANACLOSIL 500 mg powder for injectable solution and for infusion online?
Doctors such as Family doctors, Psychiatrists, Dermatologists, Cardiologists, Endocrinologists, Gastroenterologists, Pulmonologists, Nephrologists, Rheumatologists, Hematologists, Infectious disease physicians, Allergists, Geriatricians, Paediatricians, Oncologists may assess whether ANACLOSIL 500 mg powder for injectable solution and for infusion is appropriate, depending on your situation and local regulations. You can book an online consultation to discuss your symptoms and possible next steps.
What are the alternatives to ANACLOSIL 500 mg powder for injectable solution and for infusion?
Other medicines with the same active substance (cloxacillin) include ANACLOSIL 1000 mg powder for injectable solution and for infusion, ANACLOSIL 500 mg CAPSULES, CLOXACILLIN NORMON 1 g POWDER FOR INJECTION AND INFUSION SOLUTION. These may have different brand names or formulations but contain the same therapeutic ingredient. Always consult a doctor before switching or starting a new medicine.
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