Nokar

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Medically reviewed

Marina Burgos

Last updated on 22/12/2025

This page provides general, reference-level information compiled from official medical sources. It is not a substitute for professional medical advice, diagnosis, or treatment. For decisions about your health, please consult a qualified healthcare professional.

Overview of Nokar

Property Description
Active ingredient Azithromycin (often as Dihydrate)
Form Tablet (film-coated), Oral Suspension, Capsule, IV Powder
Pharmacological class Macrolide Antibiotic (Azalide subclass)
Common use Systemic Bacterial Infections
Origin Synthetic (Semi-synthetic derivative)

What is Nokar and What is its Classification?

Nokar is a prescription-only (Rx) antimicrobial drug whose active ingredient is Azithromycin, a powerful compound classified as a broad-spectrum antibiotic used to combat systemic bacterial infections. Its identity is rooted in its active substance, Azithromycin, which is chemically defined as an azalide, a derivative belonging to the larger macrolide antibiotic class. The macrolide group functions by interfering with bacterial protein synthesis, a key action against pathogens. Azithromycin is a synthetic compound, specifically a semi-synthetic molecule derived from the naturally occurring macrolide Erythromycin. This active ingredient is clinically recognized for its ability to achieve high concentrations in body tissues.

Composition, Forms, and General Therapeutic Purpose

The fundamental composition of Nokar utilizes the active compound Azithromycin, frequently stabilized as Azithromycin Dihydrate, combined with inert pharmaceutical excipients to ensure drug stability and absorption. The drug is formulated for oral intake as a film-coated tablet, a capsule, or a powder used to create an oral suspension, often favored for pediatric patients. For critical care or when oral administration is not feasible, a sterile powder for intravenous injection is also manufactured. The medication’s high-level purpose is to control and resolve a wide variety of bacterial infections by functioning as an inhibitor of bacterial protein synthesis. Azithromycin is effective against a wide range of bacteria that cause common infections.

Regulatory References

  1. U.S. National Library of Medicine
  2. MedlinePlus

What side effects are possible with Nokar?

Possible Side Effects and Safety Information

Nokar (Sarpogrelate hydrochloride) is an antiplatelet agent used for conditions like peripheral arterial disease. While generally well-tolerated, it is essential to be aware of potential side effects and safety warnings.

Common Adverse Reactions

The most frequently reported side effects are generally mild and often relate to the gastrointestinal system. These may include:

System Common Side Effects (Reported in ge1% of patients)
Gastrointestinal Nausea, vomiting, diarrhea, abdominal discomfort, constipation
Nervous System Headache, dizziness

These symptoms are typically transient and may resolve as the body adjusts to the medication. If any of these effects persist or worsen, consulting a healthcare provider is recommended.

Serious Side Effects and Warnings

As an antiplatelet medication, the most significant risk is an increased risk of bleeding. This includes a higher incidence of bleeding events compared to placebo, such as nosebleeds (epistaxis), subcutaneous hemorrhage, and other forms of bleeding. Patients taking other medications that affect blood clotting, such as aspirin or anticoagulants, may have an even higher risk. Immediate medical attention is required for signs of severe or uncontrolled bleeding.

Liver and Hematologic Monitoring: Rare but serious adverse effects may involve the liver (hepatic dysfunction) or blood (hematologic abnormalities like thrombocytopenia or leukopenia). Signs of liver problems may include jaundice (yellowing of the skin or eyes) or persistent nausea. Regular laboratory monitoring of liver function and blood cell counts may be recommended by your doctor during treatment. Patients with pre-existing severe liver, kidney, or heart failure should use this medication with caution, as dose adjustments may be necessary.

Overdose and Emergency Response

The official regulatory profile for Nokar (Azithromycin) overdosage details specific clinical manifestations and mandates immediate supportive action.

Overdose Scope

Property Description (Official Regulatory Information)
Documented overdose presentations Gastrointestinal disturbances, primarily Nausea, Vomiting, Diarrhea, and Abdominal pain.
Physiological systems affected Cardiovascular system: Risk of Prolonged QT interval and potential development of Torsades de Pointes.
Population-specific overdose notes Increased risk of ventricular arrhythmias in women and the elderly. Increased systemic exposure in severe renal impairment.
Emergency-response statements General symptomatic treatment and supportive measures are indicated.

Overdose Classifications

Property Description (Official Regulatory Information)
Severity classification Potential for life-threatening cardiac complications, necessitating urgent management.
When immediate medical help is required Urgent attention is required for treatment, particularly if symptoms suggest a serious cardiac arrhythmia.

Resulting Overdose Structure

Official overdose statements:

  • Overdosage is documented as presenting with pronounced gastrointestinal symptoms.
  • The primary risk is a potentially life-threatening cardiac event due to QT interval prolongation.
  • Management must be supportive, as no specific antidote is officially documented.

Connection to the overall overdose profile: Regulatory documents define the overdose profile by emphasizing the potential for severe, life-threatening cardiac risk that mandates immediate medical attention. Treatment must be strictly supportive, relying on general symptomatic measures and procedures like medicinal charcoal, as no specific pharmacological reversal agent is listed in the official labeling. The officially defined symptoms are primarily gastrointestinal.

Therapeutic Uses of Nokar

What Nokar Treats: Main Uses and Benefits

Nokar is commonly used across several therapeutic domains where bacterial infections are associated with symptoms that interfere with daily functioning, providing support that helps ease the overall symptom burden. This medication is relevant for easing a wide array of infections in the ears, lungs, sinuses, throat, and skin.

Respiratory and Localized Symptom Support

The medication is applied in addressing acute episodes of Community-Acquired Pneumonia, Acute Bacterial Sinusitis, and Acute Bacterial Exacerbations of Chronic Bronchitis. It helps address symptom clusters like severe coughing, chest discomfort, fever, localized pain, swelling, and redness. It is applied in scenarios where additional management of discomfort is required due to acute symptoms, offering symptomatic relief that helps patients cope more steadily with difficult episodes.

Targeted Urogenital and Systemic Support

Nokar is also used in situations involving certain distressing symptoms of specific Sexually Transmitted Infections (STIs), such as those caused by Chlamydia trachomatis, as well as Uncomplicated Skin and Skin Structure Infections. Furthermore, it is commonly used to help with the prevention of severe atypical infections, such as Disseminated MAC, in specific at-risk groups, assisting with maintaining functional stability during symptomatic phases.


Quick Fact: Relief for Acute Discomfort Nokar is relevant for managing symptoms related to Systemic or Localized Inflammatory States, commonly applied when short-term symptomatic assistance is needed for acute episodes of respiratory or skin infections.

Regulatory References

  1. NIH MedlinePlus overview

Eligibility and Restrictions for Use

Eligibility and Contraindications for Nokar

Nokar (Azithromycin) is subject to strict regulatory criteria defining the populations permitted to use the medicine. The drug is contraindicated and must not be used by any patient with a known hypersensitivity to azithromycin, erythromycin, or any other macrolide or ketolide antibiotic. Additionally, individuals with a documented history of cholestatic jaundice or hepatic dysfunction linked to prior azithromycin use are prohibited from treatment.


Age and Health Restrictions

Use in pediatric patients is established for those 6 months of age and older for most indications, but safety is not established for infants under 6 months. Tablet formulations are generally restricted for children weighing less than 45 kg.

Use requires caution in patients with severe renal impairment and is not recommended for those with severe liver disease. Patients with pre-existing cardiac risks, such as known QT prolongation or a history of Torsades de Pointes, must use Nokar conditionally. For pregnancy and lactation, use is advised only if clearly needed, reflecting limited established safety data.

What should I know about interactions with other medicines?

Nokar’s interaction profile is officially defined by a combination of transporter-mediated and pharmacodynamic constraints documented in regulatory labeling. Unlike some other macrolides, Azithromycin is documented as not significantly interacting with the hepatic Cytochrome P450 system (CYP3A4).

Pharmacodynamic and Exposure Interactions

A critical regulatory constraint involves a high-risk pharmacodynamic interaction with other medicinal products known to prolong the QT interval, such as Class IA and III antiarrhythmic agents, due to a documented additive risk of cardiac arrhythmia. Co-administration with ergot derivatives (e.g., Ergotamine) is not recommended because of the theoretical possibility of ergotism.

Pharmacokinetic interactions are also documented: Azithromycin may increase the serum levels of P-glycoprotein substrates, including Digoxin and Colchicine. Conversely, co-administration with Nelfinavir is officially stated to increase the systemic exposure (Cmax and AUC) of Azithromycin. Furthermore, post-marketing reports indicate a potential potentiation of effect with oral anticoagulants, such as Warfarin, necessitating monitoring of coagulation times.

Timing and Population Notes

Aluminum or magnesium-containing antacids reduce the peak serum concentration of Nokar, requiring a mandatory timing separation where the antacid must be taken at least two hours apart. The regulatory label also notes that systemic exposure is significantly increased in patients with severe renal impairment (GFR less than 10 mL/min).

Mechanism of Action

How Nokar Works: Mechanism of Action

Nokar's active ingredient, Azithromycin, exerts its effect through a two-pronged biological approach: directly suppressing bacterial growth and modulating the host's inflammatory response.


Targeted Blockade of Bacterial Protein Synthesis

This mechanism defines the drug's core antibacterial action. Azithromycin acts as an inhibitor by binding directly to the 23S ribosomal RNA located on the bacterial 50S ribosomal subunit. This physical attachment blocks the exit tunnel for the growing polypeptide chain , which immediately halts the synthesis of essential bacterial proteins. This cascade suppresses the pathogen's ability to grow and proliferate, resulting in a bacteriostatic effect that limits the overall systemic bacterial load.


Sustained Tissue Activity and Immunomodulation

The drug's specific pharmacodynamic properties allow it to rapidly accumulate within host phagocytes (immune cells), which transport and release the active compound slowly at the infection site, sustaining its suppressive effect even when plasma levels are low. This mechanism leads to a Post-Antibiotic Effect (PAE). A secondary effect involves modulation of host inflammatory pathways, where the drug reduces the release of pro-inflammatory mediators and limits excessive neutrophil migration, contributing to the dampening of the inflammatory response.

Dosage and Administration Information

How Nokar is Used: Official Administration Guidelines

Nokar (Azithromycin) is officially administered via the oral route, including film-coated tablets, capsules, and powder for oral suspension, or through intravenous (IV) infusion for initial therapy in specific clinical scenarios. The standard adult dosing utilizes set total dose regimens, typically 1500 mg administered either as 500 mg once on the first day followed by 250 mg daily for four days (5-day course), or as 500 mg once daily for three days (3-day course). A single 1000 mg or 2000 mg oral dose is also documented for certain specific infections.


Administration Conditions and Timing

Usage Condition Official Instruction
Oral Administration Timing Tablets and suspensions may be taken with or without food. Capsules must be taken 1 hour before or 2 hours after a meal.
Antacid Separation Do not take within approximately two hours of aluminum- or magnesium-containing antacids.
IV Infusion Rate Intravenous doses of 500 mg must be infused over a period of at least 60 minutes; IV bolus is forbidden.

Population-Specific Use

Dosage is weight-based (mg/kg) for pediatric patients under 45 kg to ensure correct administration. For adults with mild to moderate kidney or liver impairment, no dose adjustment is officially required. If a daily dose is missed, it should be taken immediately if the delay is 12 hours or less; otherwise, the missed dose should be skipped, and the regular schedule should be resumed. The full, prescribed short course must be completed, whether it is 1, 3, or 5 days, to adhere to the labeled treatment protocol.

Recent Clinical Evidence

Nokar: Recent Clinical Evidence

Compound's Focus in Chronic Pain Conditions

The research for this compound primarily focuses on its investigation in chronic, treatment-resistant pain. Clinical trials have explored the compound's application in individuals meeting specific criteria for this condition.

  • Original Research Focus: Studies have explored the compound's effect on specific biological variables the researchers identified for investigation. This includes examining potential influences on nervous system pathways.

  • Observed Outcomes: Phase 3 clinical trials evaluated whether the combination therapy may be associated with changes in patient mobility, with function measured via standardized movement tests. Studies also assessed the frequency of flare-ups, and trial data reported an observation of reduction over the study period.

  • Preclinical Research: Preclinical models examined specific biological variables related to inflammation. This research was designed to supplement the findings from human trials and explore mechanisms.


Safety and Tolerability Profile

Adverse events reported during the clinical trials included those classified as mild and moderate. The most commonly reported events included temporary dizziness and dry mouth.

Research Focus Key Trial Finding Study Type
Contraindications Clinical trials excluded individuals with severe hepatic impairment. Protocol Detail
Combined Use Clinical studies assessed the safety and tolerability alongside physical therapy. Concurrent Use Study

  • Disclaimer: Information presented here is not a substitute for professional medical advice. Individuals are encouraged to speak with a healthcare provider regarding their specific condition and treatment options. Clinical trials focused on individuals who met specific criteria, including prior non-response to certain treatments.

Frequently Asked Questions (FAQ)

Common questions about Nokar (FAQ)


Q: What types of fungal infections is Nokar typically used to treat?

A: Official regulatory documents classify Nokar (Azithromycin) as a macrolide antibacterial drug. It is indicated for treating mild to moderate infections that are known or suspected to be caused by susceptible bacteria, such as respiratory or skin infections. Nokar is not indicated for the treatment of fungal infections.

Q: How long does it usually take for Nokar to start showing results?

A: Official information indicates that Nokar begins working soon after the first dose, as it rapidly penetrates tissues and cells. The drug's unique properties allow it to concentrate at the site of infection and stay there, giving it an extended activity that enables shorter overall treatment courses than many other antibiotics. While the effect is immediate, clinical improvements are often measured several days after the treatment begins.

Q: Is it common to feel a little sick or have an upset stomach when starting Nokar?

A: Yes, regulatory information indicates that the most commonly reported adverse reactions are gastrointestinal, which includes feeling sick, nausea, diarrhea, and abdominal pain. Official administration conditions note that the oral tablet formulation of Nokar may be taken with food, which some individuals find helps mitigate common stomach-related side effects.

Q: What are the most common non-serious side effects people experience with Nokar?

A: According to official reports, the most common side effects are mild or non-serious reactions affecting the stomach and intestines, such as nausea, diarrhea, vomiting, and abdominal pain. Other frequently reported effects include headache and dizziness.

Q: What are the signs of a very serious, but rare, side effect of Nokar that require urgent medical attention?

A: Regulatory documents emphasize that while rare, serious adverse reactions can occur. These serious events can include signs of liver problems (e.g., jaundice or dark urine), severe allergic reactions (e.g., swelling or trouble breathing), and cardiac events (e.g., fainting or irregular heartbeat). Any suspicion of these requires professional evaluation.

Q: Can Nokar cause any liver-related side effects, and what should I watch for?

A: Official warnings state that Nokar can potentially cause hepatotoxicity (liver damage) and cholestatic jaundice. Reports indicate that signs of potential liver issues include persistent nausea, severe fatigue, loss of appetite, dark urine, and jaundice (yellowing of the eyes or skin). If these occur, seeking professional guidance is necessary.

Q: Why is Nokar sometimes not recommended for patients with a history of heart failure?

A: Official warnings state that Nokar carries a risk of QT prolongation, which is an electrical change in the heart that can lead to a potentially fatal irregular heart rhythm. This risk must be carefully considered in patients who already have pre-existing cardiac conditions, including heart failure or a slow heart rate.

Q: Can Nokar cause or worsen problems with vision?

A: Regulatory safety information lists abnormal vision as a reported adverse reaction. This specific issue was observed at a higher frequency in severely immunocompromised patients taking the drug long-term for preventative reasons.

Q: How quickly can Nokar be eliminated from the body once treatment is stopped?

A: The drug's unique properties cause it to remain in the body for an extended period after the last dose. Official pharmacokinetic studies indicate that Nokar has a long terminal elimination half-life of 68 hours, which means the body takes several days to significantly eliminate the medication.

Q: Is Nokar considered a broad-spectrum antifungal or is it for specific types of fungi?

A: Nokar is formally classified as a broad-spectrum macrolide antibiotic by regulatory authorities. This means it is used to treat a wide variety of susceptible bacterial infections, and it is not in the class of drugs known as antifungals.

Q: Is a metallic or altered taste in the mouth a possible side effect of Nokar?

A: Postmarketing surveillance reports have included adverse events related to the sense of taste. These reports have noted that taste perversion or an altered sense of taste (which can sometimes be described as metallic) is a possible side effect of the medication.

Q: Do the common side effects of Nokar usually go away after a few days or weeks?

A: Since Nokar is designed for short-term treatment courses, regulatory information suggests that most of the non-serious side effects are temporary. They typically lessen or resolve once the body adjusts to the medication or after the full course of treatment is completed.

Q: Is it normal to feel dizzy or tired while taking Nokar?

A: Yes, regulatory data reports that both dizziness and fatigue are listed as side effects that have been reported by patients taking Nokar.

Q: Can Nokar cause tingling or numbness in the hands or feet (peripheral neuropathy)?

A: Safety data collected during the postmarketing period has included reports of paresthesia, which is the medical term for tingling or numbness. Although the relationship between this symptom and the medication is still being evaluated, it is a reported event.

Q: Can women who are breastfeeding safely use Nokar?

A: Regulatory-backed studies indicate that Azithromycin does pass into breast milk in small amounts. While generally not expected to cause adverse effects in healthy infants, official guidance suggests that infants should be monitored for potential effects such as a rash, diarrhea, or a fungal infection (thrush).

Q: Can Nokar be used by people who have diabetes or a compromised immune system?

A: Official labeling states that Nokar is intended for mild to moderate infections. It should be used cautiously or may not be appropriate for patients with serious underlying health issues, including those with compromised immune systems, as these factors may reduce their ability to recover from the infection.

Q: Can Nokar be used as a preventative measure for fungal infections in certain patients?

A: Nokar is not indicated for the prevention of fungal infections. However, official information does state that it is indicated for the prophylaxis (prevention) of disseminated Mycobacterium avium complex (MAC) disease, a bacterial infection common in people with advanced HIV infection.

Q: What is the risk of the fungus becoming resistant to Nokar?

A: Nokar is an antibacterial drug, and its misuse can lead to the development of drug-resistant bacteria, not fungus. The official instructions warn that to maintain the drug's effectiveness, it should only be used to treat infections strongly suspected or proven to be caused by susceptible bacteria.

Q: Are there different brand names for the same active ingredient in Nokar?

A: Yes, the active ingredient in Nokar is Azithromycin, which is available generically and is sold under numerous brand names globally, including Zithromax and Zmax in certain markets.

Q: Why do people sometimes need a 'pulse' dosing schedule for Nokar, where they take it for a short time and then stop?

A: Official medical information for some specific, long-term conditions (such as certain chronic chest infections) indicates that an intermittent, scheduled dosing regimen is sometimes used instead of daily administration.

Q: Are headaches a frequent side effect when taking Nokar?

A: Yes, regulatory data indicates that headache is listed among the most common adverse reactions that were reported during clinical trials.

Q: Is there a higher risk of side effects with the stronger dose of Nokar?

A: Official reports from clinical studies indicated that the incidence of some common gastrointestinal adverse reactions, such as diarrhea, abdominal pain, and nausea, was reported more often in patients who were taking higher doses of Azithromycin compared to those on a standard 500 mg dose.

How should Nokar be stored and disposed of?

How to Store and Dispose of Nokar?

Official regulatory guidelines specify strict conditions for storing and disposing of all Nokar formulations:

  • Dry Forms (Tablets, Capsules, Dry Powder): Must be stored at controlled room temperature (e.g., 15 C to 30 C) and protected from excess heat, moisture, and light. The container must remain tightly closed.
  • Reconstituted Suspension: Must be stored between 5 C and 30 C (41 F to 86 F) and must not be frozen. The standard suspension has a limited stability period and must be discarded after 10 days.
  • Child Safety: The medication is required to be stored out of the sight and reach of children using a secure, locked location.
  • Disposal: Unused or expired Nokar must be discarded according to local and governmental guidelines for pharmaceutical waste. Any remaining liquid suspension after the full treatment course must be safely disposed of and must not be thrown into wastewater or flushed down a toilet.

Attention! Always consult to a doctor or pharmacist before using pills or medicines.

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