Disgrasil

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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 Disgrasil

Property Description
Active ingredient Orlistat
Form Capsule
Pharmacological class Gastrointestinal lipase inhibitor
Common use Weight management
Origin Synthetic compound

Disgrasil: Classification as a Peripheral Anti-Obesity Agent

Disgrasil is a brand of medication containing the active ingredient Orlistat, classified pharmacologically as a specific gastrointestinal lipase inhibitor and an established anti-obesity agent. This medication is presented as a capsule for oral administration and operates exclusively within the lumen of the digestive system, a differentiating factor from systemic drugs. Orlistat is derived chemically from lipstatin, a natural compound, but is manufactured through controlled synthesis for pharmaceutical stability. The formulation is intended to provide a defined dosage of Orlistat and is often classified as a prescription-only drug, positioning it as a tool for chronic weight management.


The Foundational Mechanism: Inhibition of Fat Absorption

The fundamental purpose of Disgrasil is to assist in weight loss by minimizing the caloric impact of dietary fat intake. Orlistat achieves this by forming a covalent bond with the active sites of key digestive enzymes, specifically gastric and pancreatic lipases, which are crucial for fat digestion. The drug prevents the hydrolysis of large fat molecules (triglycerides) into absorbable components. Consequently, a defined portion of fat ingested passes through the gut undigested, effectively preventing its absorption and supporting a controlled caloric deficit necessary for weight reduction.


Composition and Therapeutic Context of Orlistat

Disgrasil is a single-ingredient product composed solely of the active agent Orlistat and the necessary, inert excipients required for its capsule form. Orlistat works by inhibiting these intestinal lipases, which results in the reduced absorption of dietary fat. This specific, localized inhibitory action is key to its role in long-term weight management in patients whose Body Mass Index (BMI) meets established clinical criteria, providing a targeted, non-systemic approach to therapeutic intervention.

Regulatory References

  1. NIH StatPearls: Orlistat

What side effects are possible with Disgrasil?

Possible side effects and safety information: Disgrasil

The official safety profile of Disgrasil (Orlistat), documented by government health authorities, is organized around a high frequency of gastrointestinal (GI) events resulting from its mechanism, alongside specific, less common safety warnings.


Adverse Reaction Scope

The most frequent adverse reactions are classified as Very Common (ge 1/10) and involve localized GI effects, including oily spotting, flatulence with discharge, faecal urgency, fatty/oily stools (steatorrhea), and increased defecation. Common (ge 1/100 to <1/10) effects include headache, influenza, and faecal incontinence. These GI effects are documented to be more frequent at the start of treatment and diminish over time.

Serious Safety Warnings

Regulatory agencies, including the FDA, have documented rare post-marketing reports of severe hepatic injury (liver damage), some cases resulting in liver transplantation or death. Other officially listed serious adverse reactions include pancreatitis, cholelithiasis (gallstones), and hypersensitivity reactions. Furthermore, the label notes an association with acute kidney injury and calcium oxalate nephrolithiasis (kidney stones).

Safety Constraints and Restrictions

Official regulatory documents establish absolute restrictions on use, noting that the medicine is contraindicated in conditions such as chronic malabsorption syndrome and cholestasis. Disgrasil is also contraindicated for use during pregnancy and lactation. Due to its mechanism, the label mandates the safety constraint that the medicine may lead to reduced absorption of fat-soluble vitamins (A, D, E, and K).

Overdose and Emergency Response

Disgrasil Overdose and When to Seek Help

The official regulatory profile for Disgrasil (Orlistat) is defined by its localized action, resulting in minimal systemic absorption and a generally low risk of severe systemic toxicity. Clinical and post-marketing reports of overdose cases have indicated the manifestation of adverse events that are typically similar to those reported with the recommended therapeutic dose, or no significant findings at all. This lack of severe, unique symptoms means the immediate focus is on required regulatory actions.

Required Actions and Monitoring

Management of a Disgrasil overdose is officially designated as symptomatic and supportive care, as no specific antidote is known or available. Following exposure to a significant overdose, the official regulatory guidance requires that the patient be placed under a minimum of 24 hours of observation. This observation period is mandated to monitor for any potential delayed effects.

Seeking Urgent Medical Attention

Urgent medical attention must be sought immediately for any severe, life-threatening emergency, a mandate independent of the specific medicine taken. If an individual has collapsed, experienced a seizure, has trouble breathing, or cannot be awakened, immediate medical attention must be sought by contacting emergency services or the regional Poison Control Center, as explicitly stated in public health guidance.

Therapeutic Uses of Disgrasil

What Disgrasil Treats: Main Uses and Benefits

This medication is commonly used to help with weight management in situations involving certain distressing symptoms linked to excess body mass. It is generally applied in addressing conditions marked by increased physiological stress linked to obesity and being overweight, and is relevant in conditions presenting with systemic or localized discomfort associated with obesity or being overweight with complex health challenges.

The medicine may assist with maintaining a sense of functional stability for patients during challenging weight management periods. It plays a role in managing the cluster of symptoms related to systemic imbalance.

“This supportive therapeutic benefit supports general well-being during symptomatic phases of long-term weight management.”

Supporting Weight Loss and Health

Disgrasil is applied in addressing the primary challenge of excess body fat accumulation and the resulting symptoms that create noticeable physiological strain associated with a high BMI. Successful weight management may assist with easing the overall symptom load, and this provides supportive relief when symptoms interfere with routine activities.


Quick Fact: Relief for Sustained Symptom Management

Regulatory References

  1. NIH MedlinePlus Drug Information

Eligibility and Restrictions for Use

Eligibility Map: Who can and cannot use Disgrasil (Orlistat) — Official Regulatory Information

This section defines the official eligibility rules for Disgrasil as documented by governmental regulatory authorities like the FDA and EMA.

Category Official Regulatory Status
Populations for whom use is allowed Adults 18 years of age who meet official criteria for being overweight or obese.
Age-related eligibility rules Children < 12 years of age: Safety and efficacy not established by regulators.
Pregnancy status Contraindicated. Use is strictly prohibited during pregnancy.
Lactation status Contraindicated or Not Recommended for women who are breastfeeding.

Populations for Whom Use is Contraindicated

Use of Disgrasil is strictly prohibited by regulatory bodies for patients with the following conditions:

  • Chronic Malabsorption Syndrome
  • Cholestasis (a condition that blocks or slows bile flow)
  • Known Hypersensitivity (allergy) to Orlistat or any component of the product

Condition-Specific Eligibility Restrictions

Regulators advise caution and monitoring for patients with a history of hyperoxaluria or those at risk for oxalate nephrolithiasis (kidney stones). The medication is also not recommended for use in patients with a history of eating disorders.

What should I know about interactions with other medicines?

Interactions with other medicines and products

Disgrasil (Orlistat) is associated with several officially documented interactions that primarily involve reducing the absorption of co-administered substances. Regulatory agencies classify these interactions due to the drug’s localized action within the gastrointestinal tract, not through systemic metabolic enzymes.

Category Documented Interaction Entities and Outcomes
Exposure-Modifying Substances Reduced plasma levels of Fat-Soluble Vitamins ( A, D, E, K), Beta-Carotene, Amiodarone, Levothyroxine, and certain Antiepileptic and Antiretroviral agents due to decreased gastrointestinal absorption.
Pharmacodynamic Risk Risk of altered blood coagulation parameters (INR) in patients taking Warfarin or similar anticoagulants, related to reduced Vitamin K absorption.
Timing-Separation Rules Levothyroxine must be administered at least four hours apart from Disgrasil. Multivitamin supplements must be separated by at least two hours or taken at bedtime. Cyclosporine must be taken three hours after Disgrasil if co-administered.
Contraindicated Combinations The use of Disgrasil is formally restricted with Cyclosporine in some official labels. Use is also contraindicated in patients with Chronic Malabsorption Syndrome and Cholestasis.
Population-Specific Note Patients with Type 2 Diabetes or those on Thyroid Replacement Therapy require closer monitoring due to the risk of reduced absorption of their respective medications.

The drug's official interaction profile is defined by its impact on the absorption of lipophilic drugs and nutrients, necessitating mandatory time-separation requirements for critical medications and nutritional supplements. Regulatory documents confirm the absence of a clinically significant systemic metabolic interaction profile, such as those involving CYP enzymes. The overall structure is governed by rules designed to mitigate decreased plasma exposure of co-administered agents.

Mechanism of Action

Irreversible Inhibition of Digestive Enzymes

Disgrasil (Orlistat) exerts its action by selectively forming a covalent, irreversible bond with the active site of key digestive enzymes: gastric lipase and pancreatic lipase. This purely peripheral mechanism functionally inactivates the enzymes responsible for breaking down large fat molecules (triglycerides) into components absorbable by the body.


Peripheral Blockade of Fat Absorption

The core physiological consequence of this inhibition is the blockade of triglyceride hydrolysis, meaning the undigested fat molecules are too large to pass through the intestinal lining. This results in the expulsion of approximately 30% of ingested dietary fat, resulting in a net reduction in absorbed caloric energy without affecting central nervous system (CNS) pathways.


️ Mechanism Limitations and Specificity

The mechanism is highly specific to fat-digesting lipases and does not affect the absorption of calories from proteins and carbohydrates. However, because the drug disrupts the formation of fat-carrying structures (micelles), it inherently constrains the absorption pathway for other fat-soluble molecules, notably the fat-soluble vitamins (A, D, E, K).

Dosage and Administration Information

How to Use Disgrasil: Official Administration Guidelines

Disgrasil is administered exclusively via the oral route as a 120 mg hard-gelatin capsule. The pattern of use is specifically linked to meal consumption to ensure proper administration.


Official Dosing and Frequency

The standard adult and adolescent (ages 12 and older) regimen is one 120 mg capsule three times a day. This frequency should not be exceeded, as doses above this maximum have not shown evidence of providing additional clinical benefit.


Administration Timing and Context

For proper administration, each dose must be taken immediately before, during, or up to one hour after a main meal that specifically contains fat. If a main meal is missed or contains no fat, the dose should be omitted (skipped).

Disgrasil use is intended to be part of a larger treatment plan involving a nutritionally balanced, mildly hypocaloric diet with fat calories comprising approximately 30% of total caloric intake.


Procedural Instructions and Duration

Patients should observe specific temporal separation for other agents: a multivitamin supplement, if used, must be taken at least two hours before or after Disgrasil. Treatment should be discontinued after 12 weeks if a patient has not achieved a weight loss of at least 5% of the body weight measured at the start of therapy. This criterion serves as a procedural instruction for continuation of use.

Recent Clinical Evidence

Research evidence / Overview of Studies for Disgrasil (Orlistat)

This section outlines the structure and scope of the available clinical research, summarizing what researchers studied, the populations that were observed, and what remains uncertain in the evidence landscape.


Research Examining Chronic Weight Management in Adult Studies

Clinical evidence for Disgrasil has primarily relied on large-scale Randomized Controlled Trials (RCTs) and systematic reviews that evaluated outcomes in adults. These studies examined populations classified as obese (BMI ge 30 kg/m^2) or overweight with associated health concerns. Researchers monitored changes in body weight, Body Mass Index (BMI), and the proportion of participants who reached specific weight change thresholds. Studies reported patterns of change in body weight measurements when compared against a control group.

However, the overall magnitude of reported body weight change in the pooled evidence is frequently described as modest. The results apply only to the populations studied in the trials, and research does not determine whether an individual will respond similarly. Furthermore, low patient continuation rates have been documented in non-trial, real-world studies.


Research on Long-Term Outcomes, Metabolic Endpoints, and Special Populations

The patterns of long-term use was evaluated in multi-year longitudinal studies, with follow-up durations extending up to four years. This research was designed to assess patterns related to sustained weight change and maintained weight change over extended periods.

Research has also explored outcomes related to metabolic factors, particularly in populations at risk of developing or living with Type 2 Diabetes. Long-term trials reported measurements related to the incidence of a Type 2 Diabetes diagnosis and shifts in biomarkers like blood glucose. However, long-term effects are not fully established concerning the influence on overall cardiovascular event rates.

Separately, studies examined the specific population of adolescents (aged 12-16 years) with obesity. Findings were mixed regarding the consistency of outcomes in this group, and uncertainty remains regarding subgroup findings. For this age group, data are still emerging, and there is a significant lack of long-term follow-up data (e.g., beyond one year).


Strength of Evidence and Key Research Limitations

The evidence for adult chronic weight management is generally described as meeting established criteria in the regulatory record, and Moderate for adolescent populations, reflecting the quantity and design of the available studies. Evidence quality varies across studies, and some research featured modest sample sizes. This limited information for long-term outcomes for specific subgroups means that study results reflect the specific conditions under which they were conducted, and research is ongoing to address research gaps.

Frequently Asked Questions (FAQ)

Common questions about Disgrasil (FAQ)


Q: How does Disgrasil compare to other medicines in the same treatment class?

Official sources describe Disgrasil (Orlistat) as having a distinguishing characteristic because its mechanism is peripheral, meaning it works only within the gut and does not affect the central nervous system. Regulatory and clinical guidance indicates that it is the only approved medication in its class that does not work primarily by suppressing appetite.


Q: Are there any known interactions with common over-the-counter pain relievers or fever reducers?

Regulatory studies have shown that Disgrasil does not interact with certain non-fat-soluble prescription medicines. However, official product information does not provide a complete list of common over-the-counter (OTC) pain relievers or fever reducers. Label information indicates that consultation with a healthcare provider is important regarding all medications being taken.


Q: Is Disgrasil safe for older adults (seniors)?

Due to the medication being minimally absorbed into the bloodstream, regulatory documents state that no specific dose adjustment is considered necessary for older patients. Official regulatory documents indicate that use is defined for adults aged 18 and over who meet the established criteria for being overweight or obese.


Q: Is Disgrasil recommended for people with kidney problems?

Official warnings state that Disgrasil is not typically used for patients with pre-existing kidney disease. This caution is due to a rare risk of increased oxalate levels, which has been associated with kidney stone formation or acute kidney injury.


Q: Is it normal to feel nauseous or dizzy when first starting Disgrasil?

According to the official product information, nausea and dizziness have been reported as common side effects of Disgrasil. These effects may be experienced, particularly when starting treatment or following consumption of high-fat meals.


Q: Does Disgrasil cause changes in weight (gain or loss)?

The primary goal of Disgrasil is to facilitate weight loss through its mechanism of action. Official safety profiles also note 'weight gain' in rare post-marketing reports, although this is uncommon. Clinical data indicates that weight regain is a documented pattern observed after treatment is discontinued.


Q: What is the difference between Disgrasil and its generic version?

The active ingredient, Orlistat, is chemically identical in both the branded Disgrasil and its generic versions. Any differences between the products are limited to the inactive ingredients, known as excipients. The review of the specific inactive ingredients on the product label is advised.


Q: Can Disgrasil be taken with common cold and flu medicine?

Official studies have examined interactions with specific types of medication and found no issues with certain non-lipophilic (non-fat-soluble) drugs. However, the regulatory documents do not provide a definitive list for all common cold and flu medicines. Consultation with a healthcare professional regarding all concurrent medications is advised.


Q: Is Disgrasil safe to take if I have heart problems?

Official guidance indicates Disgrasil can be used in patients with certain stable cardiovascular conditions. However, caution is advised for patients with a history of cardiac arrhythmias or severe hypertension. The determination of appropriate use involves considering a person's full medical history.


Q: Does Disgrasil contain common allergens like lactose or gluten?

The composition of the capsule includes the active ingredient and necessary inactive excipients. The presence of common allergens like lactose or gluten depends entirely on the specific formulation of Disgrasil. For individuals with known allergies, reviewing the full list of inactive ingredients on the product label is necessary.


Q: Are there any common reasons why people stop using Disgrasil?

Studies and official guidance indicate two main reasons why use may be discontinued. The first is the documented high frequency of gastrointestinal side effects, which are a common reason for users to stop therapy. The second is the regulatory requirement to discontinue treatment if a patient fails to achieve a minimum of 5% body weight loss within the first 12 weeks.


Q: Is Disgrasil considered a controlled substance?

According to the US Drug Enforcement Administration (DEA) and similar international regulatory bodies, Disgrasil (Orlistat) is not classified as a controlled substance.


Q: How long does it typically take for Disgrasil to start working?

Disgrasil begins its action by inhibiting fat-digesting enzymes in the gut immediately upon administration. The primary clinical effect, which is the expulsion of undigested fat, is generally documented to be observable shortly after starting treatment.


Q: How long does Disgrasil usually stay in the system?

The medication is minimally absorbed into the bloodstream, and the small amount that is absorbed has a short half-life of approximately 1 to 2 hours. However, regulatory documents indicate that the complete elimination of the unabsorbed drug through feces takes between 3 to 5 days.


Q: Can I consume alcohol while taking Disgrasil?

Regulatory interaction studies have not found a direct pharmacological interaction between Disgrasil and alcohol. However, some clinical guidance references the importance of limiting alcohol intake due to a theoretical, though unproven, potential to increase the risk of serious liver-related adverse events.


Q: What is the risk of dependence or withdrawal with Disgrasil?

Disgrasil is a peripherally acting medicine and is not associated with effects on the brain or central nervous system. For this reason, official sources state that the drug is not associated with the potential for psychological or physical dependence.


Q: Can Disgrasil affect the results of laboratory tests?

Official product information indicates Disgrasil can affect the results of some lab tests indirectly. Specifically, patients taking anticoagulants like warfarin must have their blood coagulation parameters (INR) closely monitored. The requirement for blood and urine tests relates to monitoring for unwanted effects.


Q: Does Disgrasil have a known sedative effect?

Disgrasil is a peripherally acting medicine that works exclusively in the digestive tract and does not have known systemic effects on the central nervous system (CNS). Official safety profiles do not list sedation as a common or very common side effect.


Q: Is Disgrasil safe to use while driving or operating machinery?

Specific information regarding the drug’s effects on the ability to drive or use heavy machinery is not fully established in regulatory documents. However, given its peripheral mechanism and lack of significant CNS effects, no major warnings are typically highlighted. Maintaining individual vigilance is noted as important, as with any medication.


Q: Does Disgrasil affect the effectiveness of hormonal birth control?

Official interaction studies have determined that Disgrasil does not have a direct pharmacological interaction with oral contraceptives. However, the label indicates that if severe diarrhea occurs, the use of an additional contraceptive method is necessary to mitigate the risk of decreased absorption.


Q: How quickly can use of Disgrasil be stopped if necessary?

Since Disgrasil is not associated with dependence or withdrawal symptoms, it can generally be stopped quickly under the supervision of a healthcare professional. Official data suggests that discontinuation of anti-obesity therapy is often associated with the regaining of lost weight.


Q: What happens if Disgrasil is taken for longer than recommended?

Obesity is recognized as a chronic disease, and Disgrasil is intended as a long-term management tool. Clinical trials have evaluated the use of the medicine for durations extending up to four years. Some clinical guidance references that, to mitigate weight regain, treatment is sometimes considered with the intent of long-term use.

How should Disgrasil be stored and disposed of?

Storage and Handling Requirements

Disgrasil (Orlistat) capsules must be stored at Controlled Room Temperature, specifically 25 C (77 F), with permitted excursions up to 30 C. The product must be kept in its original container and maintained tightly closed to protect it from light and excessive moisture. It is required that the medication not be frozen.

Child Safety and Disposal

As a crucial safety measure, Disgrasil must be stored out of the sight and reach of children.

Unused or expired capsules should be disposed of via an official drug take-back program. If a program is unavailable, the product may be mixed with an undesirable substance (such as dirt or coffee grounds) and sealed in a container for household trash disposal. Regulatory documents advise against flushing this medicine down the toilet or pouring it down a sink.

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

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