List of Excipients in Branded Drug ETHAMBUTOL

Company	Tradename	Ingredient	NDC	Excipient	Potential Generic Entry
Marlex Pharmaceuticals Inc	ETHAMBUTOL HYDROCHLORIDE	ethambutol hydrochloride	10135-796	GELATIN
Marlex Pharmaceuticals Inc	ETHAMBUTOL HYDROCHLORIDE	ethambutol hydrochloride	10135-796	HYDROXYPROPYL CELLULOSE
Marlex Pharmaceuticals Inc	ETHAMBUTOL HYDROCHLORIDE	ethambutol hydrochloride	10135-796	MAGNESIUM STEARATE
Marlex Pharmaceuticals Inc	ETHAMBUTOL HYDROCHLORIDE	ethambutol hydrochloride	10135-796	SODIUM LAURYL SULFATE
Marlex Pharmaceuticals Inc	ETHAMBUTOL HYDROCHLORIDE	ethambutol hydrochloride	10135-796	SORBITOL
Marlex Pharmaceuticals Inc	ETHAMBUTOL HYDROCHLORIDE	ethambutol hydrochloride	10135-796	STEARIC ACID

Generic Drugs Containing ETHAMBUTOL

Company	Ingredient	NDC	Excipient
Physicians Total Care Inc	ethambutol hydrochloride	54868-6219	CROSCARMELLOSE SODIUM
Physicians Total Care Inc	ethambutol hydrochloride	54868-6219	DOCUSATE SODIUM
Physicians Total Care Inc	ethambutol hydrochloride	54868-6219	HYPROMELLOSE 2208
Physicians Total Care Inc	ethambutol hydrochloride	54868-6219	LACTOSE MONOHYDRATE
Physicians Total Care Inc	ethambutol hydrochloride	54868-6219	MAGNESIUM STEARATE
Physicians Total Care Inc	ethambutol hydrochloride	54868-6219	POLYETHYLENE GLYCOL

What are the Most Frequently-Used Excipients in ETHAMBUTOL?

# Of NDCs	Excipient
1	CROSCARMELLOSE SODIUM
1	DOCUSATE SODIUM
1	HYPROMELLOSE 2208
1	LACTOSE MONOHYDRATE
1	MAGNESIUM STEARATE
1	POLYETHYLENE GLYCOL

Excipient Strategy and Commercial Opportunities for Ethambutol

Last updated: February 28, 2026

What is the role of excipients in Ethambutol formulations?

Excipients in Ethambutol formulations primarily serve as fillers, binders, stabilizers, and disintegrants to ensure stability, bioavailability, and patient compliance. Key excipients include microcrystalline cellulose, croscarmellose sodium, and magnesium stearate for tablet formulations, and various stabilizers or preservatives in liquid forms. These excipients influence the drug's stability, release profile, and manufacturing process.

How do excipient strategies impact Ethambutol’s formulation and stability?

Optimizing excipient combinations enhances Ethambutol's stability against hydrolysis, light, and temperature. For instance:

• Teaming with stabilizers like antioxidants reduces degradation risk.
• Using disintegrants improves bioavailability by facilitating faster dissolution.
• Selecting suitable binders ensures consistent tablet integrity during storage.

Advancements include the development of excipient systems that reduce hygroscopicity, thus extending shelf life in tropical climates where Ethambutol is commonly used.

What are the commercial opportunities driven by excipient innovation?

Innovation in excipient systems offers multiple revenue streams:

1. Extended Shelf Life and Improved Stability

Formulations resistant to environmental stress increase the product's market lifespan, especially in regions with limited cold-chain infrastructure.

2. Enhanced Bioavailability and Dosing Accuracy

Novel excipients can enable lower dosing, improve absorption, and reduce side effects, making Ethambutol more appealing in combination therapies.

3. Fixed-Dose Combinations (FDCs)

Integrating Ethambutol with other anti-tuberculosis agents into single fixed-dose tablets benefits from excipient systems supporting multi-drug stability, simplifying treatment regimens.

4. Patient-Friendly Formulations

Developments such as dispersible tablets or flavored syrups leverage excipient innovations to improve adherence among pediatric and elderly populations.

5. Cost Reduction through Simplified Manufacturing

Novel excipient systems streamline production processes, decrease waste, and lower raw material costs, boosting profit margins.

How are current regulations influencing excipient strategies?

Regulatory agencies like the FDA and EMA emphasize excipient safety and compatibility, especially for pediatric and chronic use medications. The International Pharmaceutical Excipient Council (IPEC) provides guidelines on excipient safety, requiring manufacturers to validate excipient compatibility and stability data. This regulatory environment encourages the development of excipient systems that deliver both performance and compliance.

Which companies are leading in excipient development for Ethambutol?

Major excipient manufacturers, such as:

• Famar and JRS Pharma: Focus on moisture-resistant, stable excipient blends for anti-TB drugs.
• Colorcon: Offers tailored disintegrant and binder systems optimizing Ethambutol formulations.
• Roquette: Develops alternatives to traditional excipients focusing on biocompatibility and stability.

Collaboration between these suppliers and formulators enhances Ethambutol's formulation performance, creating opportunities for differentiated products.

What are future directions for excipient innovation in Ethambutol?

Emerging trends include:

• Bio-based excipients: Using natural polymers to meet sustainability goals.
• Microencapsulation techniques: Encapsulating Ethambutol within excipient matrices for controlled release.
• Smart excipients: Incorporating stimuli-responsive materials for targeted release or improved stability.
• Nanotechnology integration: Improving bioavailability through nanostructured excipients.

These advances target markets with high burdens of tuberculosis, particularly in resource-limited settings.

Key Takeaways

• Excipients directly influence Ethambutol’s stability, bioavailability, and patient adherence.
• Innovation in excipient systems can extend shelf life, lower costs, and improve therapeutic outcomes.
• The regulatory environment guides excipient safety standards, encouraging new excipient development.
• Fixed-dose combination formulations benefit from tailored excipient strategies supporting multi-drug stability.
• Future innovation focuses on sustainability, controlled release, and nanotechnology.

FAQs

1. What excipients are most common in Ethambutol tablets?
   Microcrystalline cellulose, croscarmellose sodium, magnesium stearate, and sodium starch glycolate.

2. How does excipient choice affect Ethambutol stability?
   Proper excipients reduce moisture sensitivity, prevent hydrolysis, and protect against light degradation.

3. Are there excipient innovations specifically for pediatric Ethambutol formulations?
   Yes, flavored syrups and dispersible tablets use excipients that improve palatability and ease of administration.

4. How do excipients impact the cost of Ethambutol products?
   Efficient excipient systems can simplify manufacturing, reduce waste, and lower raw material expenses.

5. What are regulatory considerations for excipient use in Ethambutol?
   Excipients must meet safety, compatibility, and stability standards outlined by agencies like FDA and EMA.

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References

[1] International Pharmaceutical Excipients Council. (2019). Guidelines on excipient safety.
[2] U.S. Food and Drug Administration. (2021). Guidance for Industry: Nonclinical Engineering and Toxicology Studies.
[3] JRS Pharma. (2020). Custom excipient blends for stability and bioavailability.
[4] Colorcon. (2021). Formulation tools for TB medications.
[5] World Health Organization. (2022). Treatment guidelines for tuberculosis.