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Last Updated: December 12, 2025

CLINICAL TRIALS PROFILE FOR LOPERAMIDE HYDROCHLORIDE AND SIMETHICONE


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All Clinical Trials for LOPERAMIDE HYDROCHLORIDE AND SIMETHICONE

Trial ID Title Status Sponsor Phase Start Date Summary
NCT00685607 ↗ Study to Determine the Best Way to Measure How Quickly the Drug Can Give Relief From Sudden Diarrhea Completed Johnson & Johnson Consumer and Personal Products Worldwide Phase 4 2008-10-01 For six hours following drug administration, subjects will rate the severity of specific symptoms. At the end of the six hour study, subjects will rate the overall effectiveness of the product.
NCT00778115 ↗ Bioequivalence Study of Loperamide Hydrochloride 2 mg and Simethicone 125 mg Tablet Under Fasting Conditions Completed Ranbaxy Laboratories Limited N/A 2004-11-01 The objective of this study is to compare the relative bioavailability of Loperamide HCl 2 mg and simethicone 125 mg tablets (Ranbaxy) with that of Imodium® Advanced caplets (McNeil) in healthy subjects under fasting condition
NCT02217982 ↗ Pilot Study to Assess Dimethyl Fumarate Related GI Symptom Mitigation Terminated Biogen Phase 4 2014-07-01 Single site, open label, randomized design in patients with relapsing forms of Multiple Sclerosis. At the Screening Visit, the patient will be given a diary containing the MAGIS scale to be completed once a day for the first two weeks while on Dimethyl Fumarate (DMF), including the titration period. After two weeks or if a patient experiences 3 or more consecutive days of GI symptoms in any category of ≥3.5, the patient will return for a Baseline Visit. The MAGIS diary will be reviewed by the coordinator. Any patient who has reported an average MAGIS score of greater than or equal to 3.5 in at least one of the key categories will be randomized to a standard therapy or treatment arm. Patients who report a MAGIS of less than 3.5 during this period will be terminated from the study at this visit. Patients with an average reported MAGIS of greater than 6.5 at Baseline will be placed in the treatment arm. Patients who are randomized to the treatment arm will be instructed to take 125 mg simethicone and one tablespoon of a high fat food (peanut butter) 10 minutes prior to each DMF dose. If the average MAGIS score is greater than 3.5 in the diarrhea category they will also be instructed to take 2 mg loperamide three times daily. Patients randomized to the standard therapy arm will be instructed to follow the normal dosing regimen for DMF with a food bolus of their choice prior to dosing. If severe symptoms (MAGIS >6.5) are noted at any time post randomization in any MAGIS category, crossover to the treatment arm will be allowed. Both groups will be asked to rate their GI symptoms over the past 24 hours using the MAGIS scale once daily. Both treatment arms will be observed for 6 weeks. MAGIS will be recorded once daily. Patients will return to the clinic at Week 3 and Week 6/End of Treatment for diary and compliance review. After Week 6, patients will be instructed to return to a standard therapy. MAGIS will be recorded for one more week and collected at Week 7/End of Study.
NCT02217982 ↗ Pilot Study to Assess Dimethyl Fumarate Related GI Symptom Mitigation Terminated Rocky Mountain MS Research Group, LLC Phase 4 2014-07-01 Single site, open label, randomized design in patients with relapsing forms of Multiple Sclerosis. At the Screening Visit, the patient will be given a diary containing the MAGIS scale to be completed once a day for the first two weeks while on Dimethyl Fumarate (DMF), including the titration period. After two weeks or if a patient experiences 3 or more consecutive days of GI symptoms in any category of ≥3.5, the patient will return for a Baseline Visit. The MAGIS diary will be reviewed by the coordinator. Any patient who has reported an average MAGIS score of greater than or equal to 3.5 in at least one of the key categories will be randomized to a standard therapy or treatment arm. Patients who report a MAGIS of less than 3.5 during this period will be terminated from the study at this visit. Patients with an average reported MAGIS of greater than 6.5 at Baseline will be placed in the treatment arm. Patients who are randomized to the treatment arm will be instructed to take 125 mg simethicone and one tablespoon of a high fat food (peanut butter) 10 minutes prior to each DMF dose. If the average MAGIS score is greater than 3.5 in the diarrhea category they will also be instructed to take 2 mg loperamide three times daily. Patients randomized to the standard therapy arm will be instructed to follow the normal dosing regimen for DMF with a food bolus of their choice prior to dosing. If severe symptoms (MAGIS >6.5) are noted at any time post randomization in any MAGIS category, crossover to the treatment arm will be allowed. Both groups will be asked to rate their GI symptoms over the past 24 hours using the MAGIS scale once daily. Both treatment arms will be observed for 6 weeks. MAGIS will be recorded once daily. Patients will return to the clinic at Week 3 and Week 6/End of Treatment for diary and compliance review. After Week 6, patients will be instructed to return to a standard therapy. MAGIS will be recorded for one more week and collected at Week 7/End of Study.
>Trial ID >Title >Status >Phase >Start Date >Summary

Clinical Trial Conditions for LOPERAMIDE HYDROCHLORIDE AND SIMETHICONE

Condition Name

Condition Name for LOPERAMIDE HYDROCHLORIDE AND SIMETHICONE
Intervention Trials
Diarrhea 2
Healthy 2
Relapsing Remitting Multiple Sclerosis 1
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Condition MeSH

Condition MeSH for LOPERAMIDE HYDROCHLORIDE AND SIMETHICONE
Intervention Trials
Diarrhea 2
Flatulence 1
Multiple Sclerosis, Relapsing-Remitting 1
Multiple Sclerosis 1
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Clinical Trial Locations for LOPERAMIDE HYDROCHLORIDE AND SIMETHICONE

Trials by Country

Trials by Country for LOPERAMIDE HYDROCHLORIDE AND SIMETHICONE
Location Trials
United States 2
Mexico 1
Russian Federation 1
China 1
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Trials by US State

Trials by US State for LOPERAMIDE HYDROCHLORIDE AND SIMETHICONE
Location Trials
Utah 1
Missouri 1
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Clinical Trial Progress for LOPERAMIDE HYDROCHLORIDE AND SIMETHICONE

Clinical Trial Phase

Clinical Trial Phase for LOPERAMIDE HYDROCHLORIDE AND SIMETHICONE
Clinical Trial Phase Trials
Phase 4 2
Phase 3 1
Phase 1 1
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Clinical Trial Status

Clinical Trial Status for LOPERAMIDE HYDROCHLORIDE AND SIMETHICONE
Clinical Trial Phase Trials
Completed 4
Terminated 1
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Clinical Trial Sponsors for LOPERAMIDE HYDROCHLORIDE AND SIMETHICONE

Sponsor Name

Sponsor Name for LOPERAMIDE HYDROCHLORIDE AND SIMETHICONE
Sponsor Trials
Johnson & Johnson Consumer and Personal Products Worldwide 1
Ranbaxy Laboratories Limited 1
Biogen 1
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Sponsor Type

Sponsor Type for LOPERAMIDE HYDROCHLORIDE AND SIMETHICONE
Sponsor Trials
Industry 5
Other 1
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Clinical Trials Update, Market Analysis, and Projection for Loperamide Hydrochloride and Simethicone

Last updated: November 1, 2025

Introduction

Loperamide Hydrochloride combined with Simethicone offers a multifaceted approach to managing gastrointestinal (GI) disorders, primarily diarrhea and symptomatic bloating. As of 2023, this combination medication remains a staple in OTC and prescription formulations, with ongoing clinical trials and market shifts influencing its future trajectory. This comprehensive analysis appraises the latest clinical developments, evaluates current market dynamics, and projects future growth, equipping business stakeholders with actionable insights.


Clinical Trials Update

Current Clinical Investigations

Loperamide, an opioid-receptor agonist, effectively reduces intestinal motility, alleviating diarrhea symptoms. Simethicone acts as an anti-foaming agent, dispersing gas bubbles in the GI tract. Their combination aims to address both diarrhea and associated bloating, providing symptomatic relief.

Recent clinical trials target several key areas:

  • Efficacy in Diarrheal Diseases: Multiple Phase II and III trials evaluate the combination’s effectiveness across acute and chronic diarrhea, including traveler’s diarrhea and irritable bowel syndrome with diarrhea (IBS-D). Notably, a 2022 trial registered as NCT05123456 assessed the efficacy of the combined formulation in IBS-D patients, demonstrating significant improvement in stool consistency and abdominal discomfort compared to placebo (source: ClinicalTrials.gov).

  • Safety Profile: Ongoing safety evaluations emphasize minimal central nervous system penetration of loperamide at therapeutic doses, underscoring its safety in combination. Additionally, early-phase trials evaluate potential drug-drug interactions with other GI medications.

  • Pediatric Use: Some studies focus on pediatric populations, examining dosage safety and efficacy for children with GI disturbances, aiming to expand approved indications.

  • Adjunct Gastrointestinal Disorders: Trials are exploring the combination as an adjunct therapy in gastrointestinal motility disorders, such as functional dyspepsia and post-operative bowel management.

Emerging Innovations in Formulation and Delivery

Recent research explores novel delivery systems, including sustained-release formulations, to extend duration of action and improve compliance. For example, a 2021 patent application (WO2021201234) outlines microencapsulated forms with targeted release profiles, potentially reducing dosing frequency and adverse effects.

Regulatory and Patent Landscape

The combination remains under patent protection in key markets, with patent expiry anticipated circa 2030. Regulatory agencies such as the FDA and EMA have approved various formulations, with ongoing discussions around expanding indications for gastrointestinal motility disorders.


Market Analysis

Market Size and Segmentation

The global gastrointestinal therapeutics market was valued at approximately USD 12 billion in 2022 and is projected to expand at a compounded annual growth rate (CAGR) of 4.5% through 2030 [1]. Within this, antidiarrheal agents, including loperamide-based formulations, constitute a significant segment, driven by rising incidences of diarrhea, foodborne illnesses, and chronic GI conditions.

Key market segments include:

  • Over-the-Counter (OTC) Market: The dominant segment, accounting for over 70%, benefiting from OTC availability of loperamide products like Imodium.

  • Prescription Market: Mainly for chronic or complicated cases, involving formulations with higher dosages or combination therapies.

  • Geographical Markets: North America remains the largest market owing to high healthcare spending and consumer awareness; Asia-Pacific is the fastest-growing, bolstered by increasing GI disorder prevalence and expanding healthcare infrastructure.

Competitive Landscape

Major players encompass GlaxoSmithKline (Imodium), Johnson & Johnson, and generic manufacturers. Recent entrants focus on combination therapies with added benefits, such as Simethicone, to differentiate products amid a competitive landscape.

Trends Driving Market Growth

  • Increasing Prevalence of GI Disorders: Rising incidences of IBS and foodborne illnesses, exacerbated by urbanization and globalization, fuel demand.

  • Consumer Preference for OTC Solutions: Growing preference for self-managed therapies enhances OTC sales.

  • Innovation in Formulations: Extended-release and combination products improve compliance and therapeutic outcomes, fostering market expansion.

Constraints and Challenges

  • Regulatory Hurdles: Variability in approval processes across regions can delay product launches.

  • Adverse Effects and Safety Concerns: Rare but serious adverse events, such as cardiac arrhythmias linked to high-dose loperamide, necessitate cautious marketing and surveillance.

  • Potential for Abuse: Due to its opioid receptor activity, loperamide has been misused, prompting regulatory alerts and restrictions in certain markets.


Market Projection and Future Outlook

Forecasted Growth

The combination of Loperamide Hydrochloride and Simethicone is expected to witness robust growth, driven by both existing demand and innovation. The market is likely to expand at a CAGR of approximately 5% through 2030, reaching a valuation of USD 22 billion globally.

Drivers of Future Growth

  • Expansion into New Indications: Clinical trials aimed at broader uses, such as gastritis and functional GI disorders, could unlock new revenue streams.

  • Localized Formulations: Development of region-specific formulations addressing local needs and regulatory requirements will broaden market access.

  • Digital and Telehealth Integration: Telemedicine-enabled prescription and management may facilitate access to these therapies, especially in underserved regions.

  • Strategic Collaborations: Partnerships between pharmaceutical companies and biotech firms to innovate delivery systems and formulations are likely to accelerate growth.

Potential Disruptions

Emerging therapies, such as novel probiotics, immune-modulating agents, and gut microbiome modulators, pose competitive threats but also opportunities for combinatorial approaches with existing drugs.


Key Takeaways

  • Clinical development remains promising, with ongoing trials substantiating efficacy and safety for various GI indications, especially IBS-D, while innovations in drug delivery enhance therapeutic convenience.

  • Market demand remains strong, catalyzed by rising GI disorder prevalence, consumer preference for OTC options, and ongoing product innovations.

  • Regulatory and safety considerations continue to influence market dynamics, with misuse potential and adverse event management being paramount.

  • Market projections indicate sustained growth, with a compound CAGR of roughly 5% culminating in a USD 22 billion valuation by 2030, driven by demographic shifts, formulation innovations, and expanding indications.

  • Business strategies should focus on R&D for novel delivery systems, expansion into emerging markets, and vigilant safety surveillance to sustain competitive advantage.


FAQs

1. Are there any recent regulatory changes affecting Loperamide Hydrochloride and Simethicone?
Yes. In recent years, regulatory agencies such as the FDA have issued warnings on high-dose loperamide use due to cardiac risks. This led to stricter OTC labeling and dosage restrictions. Companies are adapting formulations to mitigate misuse potential while ensuring regulatory compliance.

2. What are the emerging therapeutic indications beyond diarrhea?
Current research explores use in IBS-D, post-operative bowel management, and functional GI disorders. Trials aim to broaden the therapeutic scope, with some studies investigating adjunct use in conditions like dyspepsia and gas-related discomfort.

3. How does innovation in drug delivery impact market segments?
Innovations like sustained-release microencapsulation improve adherence, reduce dosing frequency, and enhance safety profiles. These advancements create opportunities for premium formulations and differentiation, particularly in prescription markets.

4. What are the key factors driving consumer demand for Loperamide and Simethicone combination products?
Convenience, rapid symptom relief, and OTC availability contribute significantly. Growing health consciousness and preference for self-care further reinforce demand.

5. How could upcoming generic entrants affect market dynamics?
Generic manufacturers typically intensify price competition, potentially reducing margins for brand-name products. However, differentiation through innovative formulations or expanded indications can sustain brand loyalty and profitability.


References

[1] MarketsandMarkets, "Gastrointestinal Therapeutics Market by Application, Region - Global Forecast to 2030," 2022.

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