Fusidic Acid API Manufacturers & Suppliers
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Fusidic acid | CAS No: 6990-06-3 | GMP-certified suppliers
A medication that supports the treatment of bacterial infections, offering reliable antibacterial coverage for dermatologic, ophthalmic, and systemic needs across key markets.
Therapeutic categories
Primary indications
- For the treatment of bacterial infections
Product Snapshot
- Fusidic acid is a small‑molecule antibiotic supplied mainly in topical, ophthalmic, oral, and occasional intravenous formulations
- It is used for the management of bacterial infections in dermatologic and ophthalmic settings
- It holds approved status in the US and Canada with certain presentations remaining investigational
Clinical Overview
The compound exhibits bacteriostatic activity. Its pharmacologic effect is achieved by inhibiting bacterial protein synthesis. Fusidic acid binds to elongation factor G and prevents its translocation from the ribosome, interrupting the elongation step of protein synthesis. Additional inhibition of chloramphenicol acetyltransferase has been described. The drug belongs to the chemical class of steroid esters, characterized by a steroid nucleus bearing a carboxylic acid ester group.
Absorption after oral administration is moderate and may be influenced by formulation. Protein binding is high, which affects distribution and free‑drug levels. Metabolism occurs primarily in the liver, and elimination is mainly biliary, with limited renal clearance. These pathways contribute to potential interactions, as fusidic acid is reported to interact with several transporters and metabolic enzymes, including CYP3A and CYP2D6, and to act as an inhibitor or substrate in various systems.
Systemic use requires attention to hepatic function and the potential for drug–drug interactions. Muscle toxicity has been reported, particularly when used with agents associated with myopathy risk. Topical and ophthalmic products demonstrate low systemic exposure, but hypersensitivity or local irritation can occur. Systemic therapy is generally reserved for infections requiring targeted coverage when alternative options are limited.
Fusidic acid is available globally in branded and generic topical products and in systemic formulations in certain regions. For API procurement, manufacturers should verify material identity, control stereochemical integrity, and ensure compliance with relevant monographs and impurity specifications, with particular focus on microbial limits and residual solvent control.
Identification & chemistry
| Generic name | Fusidic acid |
|---|---|
| Molecule type | Small molecule |
| CAS | 6990-06-3 |
| UNII | 59XE10C19C |
| DrugBank ID | DB02703 |
Pharmacology
| Summary | Fusidic acid is a bacteriostatic antibiotic that targets bacterial protein synthesis by blocking the translocation activity of elongation factor G on the ribosome. It can also inhibit chloramphenicol acetyltransferase enzymes, further limiting bacterial survival. These actions suppress bacterial growth in infections caused by susceptible organisms. |
|---|---|
| Mechanism of action | Fusidic acid works by interfering with bacterial protein synthesis, specifically by preventing the translocation of the elongation factor G (EF-G) from the ribosome. It also can inhibit chloramphenicol acetyltransferase enzymes. |
| Pharmacodynamics | Fusidic acid is a bacteriostatic antibiotic and helps prevent bacterial growth while the immune system clears the infection. |
Targets
| Target | Organism | Actions |
|---|---|---|
| Elongation factor G | Thermus thermophilus | inhibitor |
| Chloramphenicol acetyltransferase | Salmonella typhi | inhibitor |
| Chloramphenicol acetyltransferase 3 | Escherichia coli | inhibitor |
ADME / PK
| Absorption | Sodium fusidic acid tablets have a 91% oral bioavailability. Absorption of the film-coated tablets is complete when compared to a solution, however oral absorption is variable. Oral fusidic acid hemihydrate (suspension) achieved a 22.5% bioavailability in pediatric patients following a 20 milligram/kilogram dose. |
|---|---|
| Half-life | Approximately 5 to 6 hours in adults. |
| Protein binding | 97 to 99% |
| Metabolism | Metabolites include dicarboxylic ester/acid, 3-keto fusidic acid, hydroxy fusidic acid, glucuronide fusidic acid and a glycol metabolite. |
Formulation & handling
- Fusidic acid is a lipophilic small‑molecule steroidal antibiotic with very low aqueous solubility, favoring topical, ophthalmic, and suspension-based oral formulations.
- Oral products typically use suspended API or solid dosage forms with surfactants/wetting agents to manage poor solubility and food can reduce GI irritation.
- IV and ophthalmic solutions require solubilizers or salt/complex forms to achieve workable concentrations due to limited water solubility and stability constraints.
Regulatory status
| Lifecycle | The API is marketed in the United States and Canada, where key patents have expired or are nearing expiry, indicating a transition toward a mature market phase. These conditions typically support increased generic competition and stable but limited growth potential. |
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| Markets | Canada, US |
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Supply Chain
| Supply chain summary | Fusidic acid is an established antibacterial API originally developed by a single originator company and is now supplied by multiple manufacturers. Branded products are available in several regions, including Canada, the US, and other international markets under long‑standing brand names. Patents expired many years ago, so the molecule commonly faces existing generic competition in most jurisdictions. |
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Fusidic Acid is a type of Antibacterials
Antibacterials, a category of pharmaceutical active pharmaceutical ingredients (APIs), play a crucial role in combating bacterial infections. These APIs are chemical compounds that target and inhibit the growth or kill bacteria, helping to eliminate harmful bacterial pathogens from the body.
Antibacterials are essential for the treatment of various bacterial infections, including respiratory tract infections, urinary tract infections, skin and soft tissue infections, and more. They are commonly prescribed by healthcare professionals to combat both mild and severe bacterial infections.
Within the category of antibacterials, there are different classes and subclasses of APIs, each with distinct mechanisms of action and target bacteria. Some commonly used antibacterials include penicillins, cephalosporins, tetracyclines, macrolides, and fluoroquinolones. These APIs work by interfering with various aspects of bacterial cellular processes, such as cell wall synthesis, protein synthesis, DNA replication, or enzyme activity.
The development and production of antibacterial APIs require stringent quality control measures to ensure their safety, efficacy, and purity. Pharmaceutical manufacturers must adhere to Good Manufacturing Practices (GMP) and follow rigorous testing protocols to guarantee the quality and consistency of these APIs.
As bacterial resistance to antibiotics continues to be a significant concern, ongoing research and development efforts aim to discover and develop new antibacterial APIs. The evolution of antibacterials plays a crucial role in combating emerging bacterial strains and ensuring effective treatment options for infectious diseases.
In summary, antibacterials are a vital category of pharmaceutical APIs used to treat bacterial infections. They are designed to inhibit or kill bacteria, and their development requires strict adherence to quality control standards. By continually advancing research in this field, scientists and pharmaceutical companies can contribute to the ongoing battle against bacterial infections.
Fusidic Acid API manufacturers & distributors
Compare qualified Fusidic Acid API suppliers worldwide. We currently have 7 companies offering Fusidic Acid API, with manufacturing taking place in 5 different countries. Use the table below to review supplier type, countries of origin, certifications, product portfolio and GMP audit availability.
| Supplier | Type | Country | Product origin | Certifications | Portfolio |
|---|---|---|---|---|---|
| Aurora Industry Co., Ltd | Distributor | China | China | BSE/TSE, CEP, CoA, GMP, ISO9001, MSDS, USDMF | 250 products |
| Azelis | Producer | Germany | Germany | CEP, CoA, GMP | 4 products |
| Joyang Labs. | Producer | China | China | CEP, CoA, FDA, GMP, USDMF | 2 products |
| Leo Pharma | Producer | Denmark | Denmark | CEP, CoA, GMP, JDMF | 5 products |
| Ojsc Biosintez | Producer | Russia | Russia | CEP, CoA | 1 products |
| SETV Global | Producer | India | India | CoA, FDA, GMP | 515 products |
| Sinoway industrial Co.,Lt... | Distributor | China | China | CEP, CoA, GMP, ISO9001, MSDS, USDMF, WC | 757 products |
When sending a request, specify which Fusidic Acid API quality you need: for example EP (Ph. Eur.), USP, JP, BP, or another pharmacopoeial standard, as well as the required grade (base, salt, micronised, specific purity, etc.).
Use the list above to find high-quality Fusidic Acid API suppliers. For example, you can select GMP, FDA or ISO certified suppliers. Visit our help page to learn more about sourcing APIs via Pharmaoffer.
