Ulgastran

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Ulgastran

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Medically reviewed

Rosario Oropesa

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 Ulgastran

What is Ulgastran?

Ulgastran is a medicinal product used primarily for the treatment and prevention of certain conditions affecting the upper gastrointestinal tract. It belongs to a class of medications known as cytoprotective agents, which are designed to protect the lining of the digestive system from the damaging effects of stomach acid and digestive enzymes.

Composition and Mechanism

The active substance in Ulgastran is sucralfate, a basic aluminum salt of sucrose sulfate. Unlike many other gastrointestinal treatments that work by neutralizing existing acid or suppressing acid production, Ulgastran acts locally at the site of injury.

When the medication enters the acidic environment of the stomach, it undergoes a physical change, forming a viscous, paste-like substance. This substance has a strong affinity for damaged mucosal tissue, such as ulcers or erosions. It binds selectively to the proteins on the surface of these lesions, creating a protective physical barrier or "bandage" over the affected area. This coating serves several purposes:

  • Physical Protection: It shields the sensitive ulcer site from gastric acid, pepsin, and bile salts.
  • Promotion of Healing: By preventing further irritation, it allows the underlying tissue to regenerate and heal naturally.
  • Local Action: Because the medication is poorly absorbed into the systemic circulation, its effects are largely confined to the digestive tract.

Clinical Applications

Ulgastran is typically utilized in the management of various inflammatory and ulcerative conditions of the stomach and duodenum. Its primary applications include:

  • Duodenal Ulcers: Assisting in the healing of active ulcers located in the first part of the small intestine.
  • Gastric Ulcers: Managing benign ulcers within the stomach lining.
  • Gastritis: Addressing chronic inflammation of the stomach lining where mucosal protection is required.
  • Stress Ulcer Prophylaxis: Used in specific clinical settings to prevent the formation of ulcers caused by physiological stress.

By providing a protective layer, Ulgastran supports the integrity of the gastrointestinal mucosa and facilitates the recovery process of the digestive lining.

Regulatory References

  1. SUCRALFATE tablet - DailyMed

What side effects are possible with Ulgastran?

Possible side effects and safety information

The safety profile of Ulgastran (Sucralfate) is defined by officially documented adverse reactions and strict regulatory limitations, as classified by government health authorities.

Adverse Reaction Classification

Adverse reactions are classified by frequency and the body system affected, with the most frequent effects being localized to the gastrointestinal tract. Constipation is the adverse reaction most often reported in clinical trials, typically occurring in a small percentage of patients. Other reported effects, which occur less frequently, include diarrhea, nausea, dry mouth, indigestion, headache, dizziness, and sleepiness. Dermatological effects such as rash and pruritus are also documented.

System-Organ Class Examples of Documented Adverse Reactions
Gastrointestinal Disorders Constipation, Diarrhea, Nausea, Dry mouth, Vomiting, Gastric discomfort
Nervous System Disorders Headache, Dizziness, Sleepiness, Insomnia, Vertigo
Skin Disorders Pruritus (itching), Rash

Serious Safety Considerations

The regulatory label documents several serious safety considerations. These include reports of Bezoar Formation (a solidified mass in the digestive tract), often linked to pre-existing conditions affecting gut motility. Rare but severe Hypersensitivity Reactions, such as angioedema or laryngeal edema, have been reported in post-marketing use.

Due to its composition, Ulgastran carries a specific risk of Aluminum Accumulation and toxicity (encephalopathy, bone disease) in patients with chronic or severe renal failure or those on dialysis, particularly with long-term exposure. Regulatory safety constraints strictly mandate that this medicine is for oral administration only, with severe warnings against improper intravenous injection.

Overdose and Emergency Response

Overdose and When to Seek Help

Official regulatory information addresses the recognized risks associated with Ulgastran (sucralfate) overdosage. Documented reports of accidental or intentional overdose are rare, and regulatory bodies note that most patients exposed to excessive doses have remained asymptomatic.


Documented Overdose Manifestations

When symptoms have been reported following excessive intake, they are generally classified as mild and are consistent with gastrointestinal adverse reactions. These manifestations include:

  • Dyspepsia (indigestion)
  • Abdominal Pain
  • Nausea and Vomiting
  • Constipation

Due to the mechanism of the drug and its low systemic absorption, regulatory assessments indicate that establishing a lethal dose is unlikely. Serious, life-threatening outcomes have not been associated with acute overdosage in official labeling.


Required Emergency Actions

Immediate medical intervention is necessary when an overdose is suspected or confirmed. As required by official prescribing information, individuals should take the following steps:

  • Discontinue the medication immediately.
  • Contact a regional Poison Control Center for guidance on management.

Management is primarily symptomatic and supportive, focusing on treating the reported gastrointestinal distress until the drug is cleared from the system. Individuals should rely solely on the instructions provided by emergency medical services or the Poison Control Center.

Therapeutic Uses of Ulgastran

What Ulgastran Treats: Main Uses and Benefits

The primary therapeutic benefit of Ulgastran is to provide supportive care for conditions involving heightened physiological activity and tissue irritation in the upper digestive tract. It is commonly used to help manage the overall symptom burden in specific conditions, such as conditions presenting with systemic or localized discomfort. The therapeutic domains of Ulgastran are widely recognized. Ulgastran is applicable within clinical settings that involve acute or disruptive symptom patterns to help patients cope more steadily with difficult episodes.

This medication is often used during phases when symptoms become more noticeable, such as symptoms associated with acute or episodic changes. It is applied across domains where additional symptomatic support is needed to address symptom clusters that may become intense or disruptive. By assisting with maintaining functional stability, Ulgastran contributes to improved day-to-day comfort during periods of heightened symptoms.

“Ulgastran may be part of symptomatic management for recurrent or episodic manifestations, and provides supportive relief that helps maintain a sense of stability when symptoms are more noticeable.”


Quick Fact: Relief for Symptoms that Create Noticeable Physiological Strain

Ulgastran is considered relevant in conditions involving recurrent or episodic manifestations. It is commonly used across conditions presenting with acute episodes to provide supportive relief, and it may be part of symptomatic management in situations where patients experience recurrent or episodic manifestations.

Regulatory References

  1. NIH MedlinePlus Drug Information

Eligibility and Restrictions for Use

Ulgastran (sucralfate) eligibility is defined by official regulatory bodies based on the drug's composition and patient health status, primarily relating to aluminum excretion.

Contraindications and Restrictions

Classification Population/Condition
Contraindicated Patients with known hypersensitivity to sucralfate or any excipients.
Patients with severe or chronic renal insufficiency, or those on dialysis (chronic use).
Patients with hypophosphataemia or those taking citrate preparations (due to increased aluminum absorption risk).
Not Recommended Children under 14 years of age (safety and efficacy not established).
Use with Caution Patients with chronic renal failure (due to impaired aluminum excretion).
Pregnant women (use only if clearly needed, as studies are lacking).
Breastfeeding women (caution advised, unknown if excreted in milk).
Patients with conditions predisposing to bezoar formation (e.g., delayed gastric emptying).

For older adults, dose selection should be cautious, reflecting the greater frequency of decreased organ function. Use of Ulgastran in patients with renal impairment requires regular monitoring of aluminum and phosphorus levels due to the risk of accumulation and potential toxicity.

What should I know about interactions with other medicines?

The interaction profile of Ulgastran is defined by a clinically significant non-systemic binding mechanism that affects the absorption of numerous co-administered oral medicines. The primary concern is the reduced extent of absorption (bioavailability) of several medicinal products due to binding in the gastrointestinal tract.

Affected medicines explicitly listed in regulatory documents include the H2-receptor antagonists Cimetidine and Ranitidine, the cardiac glycoside Digoxin, the anticonvulsant Phenytoin, the thyroid hormone Levothyroxine, the bronchodilator Theophylline, and the antifungal Ketoconazole. Certain Fluoroquinolone antibiotics (a product group) are also subject to this absorption interference. To prevent this interaction, all tested susceptible oral products must be dosed two hours before Ulgastran administration.

In addition to drug-drug interactions, Ulgastran interacts with specific substances and products. Concomitant use with aluminum-containing products, such as antacids, may increase the total body burden of aluminum. This risk is particularly noted as a population-specific consideration for patients with chronic renal failure or those on dialysis, due to their impaired ability to excrete absorbed aluminum. Furthermore, regulatory documentation notes a procedural restriction: co-administration with enteral tube feedings presents a risk of precipitation and bezoar formation. Case reports have also suggested the potential for subtherapeutic prothrombin times when Ulgastran is co-administered with Warfarin.

Mechanism of Action

Forming a Localized Protective Shield

Ulgastran's mechanism is initiated by contact with the acidic environment of the stomach, which induces a chemical reaction that forms a highly viscous, negatively charged polymer. This complex exhibits high affinity for, and selectively binds to, positively charged proteins exposed at sites of mucosal tissue discontinuity. This physical adherence isolates the underlying tissue from aggressive luminal substances, thereby contributing to the maintenance of structural integrity.

Adsorbing Aggressive Digestive Agents

Beyond barrier formation, the drug complex functions as an adsorbent within the gastrointestinal lumen. It physically binds to and removes potentially harmful components, specifically the proteolytic enzyme pepsin and bile acids. This physical interaction reduces the local concentration and activity of these agents, which restricts the chemical and enzymatic degradation of the mucosal layer.

Influencing Endogenous Defense Factors

The drug serves as a localized modulator, stimulating the release of protective endogenous factors, including prostaglandins and bicarbonate ( HCO3^-). This modulation influences local physiological activities, such as microcirculation and cellular regeneration, which contributes to the stability of the mucosal barrier and tissue repair processes.

Dosage and Administration Information

Ulgastran (Sucralfate) is administered strictly via the oral route, consistent with its purpose as a locally acting cytoprotective agent. It is available as a tablet (1 gram strength) and an oral suspension (1 gram per 10 milliliters). The official administration protocol is highly structured around ensuring the medicine can form a physical barrier over the mucosa without interference.

Standard Dosing and Frequency

Treatment Goal Standard Adult Dose Frequency
Active Management 1 gram Four times daily (QID)
Maintenance Therapy 1 gram Twice daily (BID)

Dosing is maintained at a consistent level for the full prescribed duration, which is typically 4 to 8 weeks for active management, or up to one year for maintenance to prevent recurrence.

Administration Timing and Preparation

Ulgastran must be taken on an empty stomach, generally scheduled for one hour before meals and at bedtime. This specific timing is required to maximize the medicine's ability to bind to the affected tissue. It is critical to separate Ulgastran from other oral agents: antacids must be taken at least 30 minutes apart, and most other oral medications require a separation of at least 2 hours. The oral suspension form requires thorough shaking before each measured dose.

Population-Specific Considerations

Dose selection for older adults should be approached cautiously, often starting at the lower end of the adult dosing range, and use in patients with renal impairment requires careful application due to the presence of aluminum. Safety and effectiveness are not established for pediatric patients for the approved indication. In the event of a missed dose, the next dose should be taken at the regularly scheduled time, and doubling up on a dose is not advised.

Recent Clinical Evidence

Ulgastran: Overview of Studies


Evidence for Ulcer Healing: Short-Term Clinical Trials

Ulgastran was studied for its use in conditions associated with acute or disruptive episodes, specifically in adult patients with active duodenal ulcers. These evaluations involved short-term, multicenter Randomized Controlled Trials (RCTs). Research explored outcomes related to physical discomfort and the status of the mucosal lining, with measurements assessed objectively using endoscopy or X-ray.

The research so far describes the patterns observed in the measured outcomes related to changes in the status of the mucosal lining over the observation duration. Studies reported how symptoms evolved in the observed populations, noting changes measured during the short-term study period. Limited patient numbers was a limitation in the analysis specifically for older adult (geriatric) subgroups during the primary trials. Therefore, results apply only to the general adult populations studied, and data for this certain group remain insufficient.


Research on Preventing Recurrence and Maintenance of Healing

Following the initial short-term studies, the research was evaluated in longer-term trials designed to explore maintenance therapy. These studies monitored adult patients who had achieved initial healing of a duodenal ulcer, examining outcomes related to physical discomfort and functional stability. Follow-up durations were limited to intermediate time periods, typically tracking patients for 6 to 12 months.

Comparative evidence is lacking regarding the long-term status of the healed mucosa against the newest acid-reducing agents. Furthermore, these studies were largely conducted before modern protocols for managing ulcers (like H. pylori eradication) became common practice, meaning the evidence contributes to understanding symptom patterns under specific historical conditions.


Research Gaps and Areas of Uncertainty

The certainty remains low for certain specialized uses because evidence quality varies across studies and many comparative studies are lacking. There is limited information for long-term outcomes, particularly for maintenance uses and for comparative data against newer standards of care. Additionally, the results apply only to the populations studied, and data are still emerging for many specialized applications.

Key Studies & References

  1. Sucralfate - StatPearls - NCBI Bookshelf (General Monograph and Overview)
  2. Efficacy and safety of stress ulcer prophylaxis in critically ill patients: systematic review and network meta-analysis

Frequently Asked Questions (FAQ)

Common questions about Ulgastran (FAQ)


Q: What common over-the-counter pain medications like ibuprofen (NSAIDs) can I take with Ulgastran?

Regulatory documents state that Ulgastran can reduce the extent of absorption, or bioavailability, of many oral medicines by physically binding them in the gastrointestinal tract. While specific over-the-counter pain relievers may not be individually named in the label, this general interaction mechanism still applies. Official guidelines recommend separating the administration of susceptible oral products by two hours before taking Ulgastran to help prevent this interference.


Q: What is the reason for the black box warning on this drug?

The official regulatory label contains severe warnings that strictly mandate the drug is for oral administration only. This is a major safety constraint because fatal complications have been reported from the improper intravenous injection of the oral suspension. This prominent regulatory warning highlights the critical importance of the oral administration route, and patients should discuss the risks with their healthcare provider.


Q: Can a pregnant woman safely take Ulgastran?

Official product information notes that animal studies have not shown any harm to the fetus when the drug was given at doses higher than the human dose. However, there are no adequate and well-controlled studies specifically in pregnant women. Official guidance suggests that use during pregnancy should only occur if the potential benefit justifies the potential risk to the fetus, as determined by a healthcare provider.


Q: Can I crush the Ulgastran tablet to make it easier to swallow?

The official label does not provide specific instructions on crushing the tablet. It does, however, caution that the tablet should be used with care in patients who may have difficulty swallowing (dysphagia). If swallowing tablets is difficult, the official product line includes an oral suspension, which is a liquid form of the medicine, and this can be discussed with a healthcare provider.


Q: How should I dispose of the unused liquid suspension?

While the drug label advises patients to consult a professional for disposal, general guidance from official sources exists for medicines that should not be flushed. This guidance often involves procedures like mixing the medicine with an undesirable substance, such as used coffee grounds or kitty litter, and placing the mixture in a sealed container before disposal. Patients are generally advised to consult with a pharmacist for the most current and specific local disposal instructions.


Q: If I take Ulgastran for 8 weeks, is my ulcer permanently healed?

Ulgastran is approved for the short-term treatment of active duodenal ulcers for a course of up to 8 weeks. While this treatment course is designed to achieve complete healing of the existing ulcer, official clinical information indicates that while the drug promotes healing during the course of treatment, it is not shown to prevent the subsequent recurrence of the ulcer after the active management course has been completed.


Q: What foods should I avoid while taking this medicine?

Official product information states that Ulgastran must be taken on an empty stomach, typically scheduled for one hour before meals and at bedtime. There are no specific dietary restrictions or foods listed as interacting with the medicine that need to be avoided, other than ensuring the timing separation from meals to maximize the drug's effect.

How should Ulgastran be stored and disposed of?

How to Store and Dispose of Ulgastran?

Ulgastran (Sucralfate) must be stored according to official regulatory specifications to maintain its stability. The product is required to be kept at Controlled Room Temperature, which is defined as 20 C to 25 C (68 F to 77 F). The medicine must be protected from excessive heat, moisture, and direct light, and should be kept in a closed container.


Handling and Protection Rules

Requirement Application
Freezing Prohibition The oral suspension form must not be frozen to prevent product degradation.
Suspension Handling The Ulgastran Oral Suspension must be shaken well immediately before each use.
Child Safety Store the medicine out of the sight and reach of children.

Disposal Instructions

Outdated or unused Ulgastran should not be kept. Regulatory guidance requires patients to consult a healthcare professional for specific instructions on how to properly dispose of the unused or expired medication.

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

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