Fingras

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Medically reviewed

Marina Burgos

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 Fingras

Property Description
Active ingredient Orlistat (Tetrahydrolipstatin)
Form Hard-gelatin capsule
Pharmacological class Lipase inhibitor
Common use Obesity management / Weight maintenance
Origin Synthetic derivative of lipstatin

What is Fingras? Definition and Classification

Fingras is a medicinal product intended for obesity management and weight maintenance, acting through its single active substance, Orlistat. Orlistat is formally classified as a lipase inhibitor, a type of peripherally acting antiobesity agent. Its primary therapeutic purpose is to facilitate weight loss by reducing the caloric load absorbed from dietary fats, and it is typically used by patients who are overweight or have obesity in conjunction with a reduced-calorie diet. This mechanism is clinically recognized for offering a non-systemic approach to calorie reduction, a finding consistently supported by pharmacological studies.

Composition, Origin, and Delivery Form

This medication is provided as a single-active ingredient product contained within a hard-gelatin capsule for oral route administration. The active ingredient, Orlistat, is a crystalline powder with the chemical formula C29H53NO5. Orlistat is a synthetic derivative of lipstatin, a potent compound originally isolated from the bacterium Streptomyces toxytricini. The precise, controlled synthetic route ensures the consistent production of this molecule, which is delivered with standard pharmaceutical excipients inside the capsule shell.

How Fingras Differs: Targeted Peripheral Action

The differentiating factor of Fingras's action lies in the reversible inhibition of gastric and pancreatic lipases. This highly specific action involves the covalent binding of Orlistat to the active site of these digestive enzymes, which prevents them from breaking down large dietary fat molecules. This mechanism is important because its effect is entirely localized to the lumen of the gastrointestinal tract, ensuring minimal systemic absorption and distinguishing it from agents that act on the central nervous system. This targeted approach is a defining characteristic of its pharmacological class.

What side effects are possible with Fingras?

Possible Side Effects and Safety Information

The safety profile for Fingras is established by government regulatory agencies based on clinical trial data and post-market surveillance. It addresses common adverse reactions, as well as several serious and clinically significant risks that may require patient monitoring.

Serious and Clinically Significant Risks

Official regulatory documents note a risk of serious and opportunistic infections, including rare but potentially life-threatening infections such as Progressive Multifocal Leukoencephalopathy (PML). Other significant risks include a transient, notable slowing of heart rate (bradycardia) and heart rhythm abnormalities, particularly following the first dose, which necessitates a required observation period. Severe worsening of the underlying condition may occur weeks to months after the medicine is discontinued. The safety profile also includes warnings for macular edema (swelling in the central retina), significant liver enzyme elevation, and the potential for skin malignancies.

Common Adverse Reactions

The most frequent adverse events, classified as Very Common (affecting more than 1 in 10 people), include headache, influenza, and raised liver enzyme levels. Common reactions (affecting between 1 in 10 and 1 in 100 people) include dizziness, cough, diarrhea, back pain, and hypertension.

Regulatory Restrictions and Contraindications

Fingras is subject to several official safety limitations:

  • Pregnancy and Fetal Risk: It is formally contraindicated during pregnancy and for women of childbearing potential not using effective contraception, due to a documented risk of major congenital malformations (e.g., cardiac, renal). Contraception must be used during treatment and for two months after stopping the medicine.
  • Cardiac Restrictions: The medicine is contraindicated in patients with specific pre-existing heart conditions, such as recent myocardial infarction, unstable angina, or specific heart rhythm abnormalities (e.g., Mobitz Type II 2nd degree AV block), unless the patient has a functioning pacemaker.

Specific monitoring of the heart, blood cell counts, liver function, and vision is required as part of the official safety management plan.

Overdose and Emergency Response

Overdose and When to Seek Help

Official regulatory documentation states that Fingras (Orlistat) has a unique overdose profile due to its minimal systemic absorption. Studies testing high single doses, such as 800 mg, and multiple doses up to 400 mg three times daily for 15 days in subjects reported no significant acute adverse findings. This low systemic exposure is why any potential systemic effects from the lipase-inhibiting activity are expected to be rapidly reversible according to regulatory assessments.

Overdose Status and Required Action Official Regulatory Statement
Documented Manifestations No significant acute adverse findings reported in high-dose clinical studies.
Emergency Help Seek immediate medical attention if a significant overdose is suspected.
Post-Overdose Monitoring Patient observation for a period of 24 hours is recommended following a significant overdose.
Management Strategy Treatment is limited to symptomatic and supportive measures, as no specific antidote is officially documented.

The regulatory guidance on managing an overdose focuses on prompt medical evaluation and a mandatory period of observation, underscoring the agent’s profile as a localized compound with expected minimal systemic consequences. This structured approach, based on government-authorized prescribing information, ensures patient safety while acknowledging the low potential for acute systemic toxicity.

Therapeutic Uses of Fingras

Fingras is applied in addressing excess body weight in individuals who are struggling with this issue, specifically those with clinical obesity (BMI 30 kg/m^2) or in conditions marked by increased physiological stress. The core therapeutic focus is to provide support for sustained weight loss and plays a role in managing the risk of recurrent manifestations over the long term.


The medication is commonly used to help with symptoms that interfere with daily functioning in adults and is also relevant for easing symptoms in adolescents. It is relevant in situations with significant discomfort associated with conditions presenting with systemic or localized discomfort, which may include features linked to hypertension, dyslipidemia, or impaired glucose tolerance. Fingras is relevant for easing these symptom clusters that may create noticeable physiological strain and are linked to systemic imbalance.

“The medication is generally used when additional support for symptom management is appropriate.”


Quick Fact: Relief for Metabolic Strain

Fingras is commonly used to help address symptoms related to systemic imbalance, which may be part of symptomatic management of parameters like blood pressure and cholesterol profiles.

Regulatory References

  1. European Medicines Agency (EMA) product information

Eligibility and Restrictions for Use

Eligibility for Fingras: Official Regulatory Criteria

Fingras is indicated for use only in specific populations defined by official health authorities, establishing precise eligibility and exclusion criteria. Eligibility is primarily determined by a patient's Body Mass Index (BMI).

Category Regulatory Status Statement (Official Labeling)
Eligible Populations Adults and Adolescents Use is approved for Adults and Adolescents aged 12 years and older. Individuals must meet clinical thresholds for weight status [NIH StatPearls].
BMI-Dependent Eligibility Conditional BMI must be 30 kg/m^2 (obesity) or 27 kg/m^2 in the presence of associated risk factors, such as hypertension or dyslipidemia [FDA AccessData].
Not Recommended Age Restriction Safety and efficacy have not been established in children younger than 12 years of age [Mayo Clinic].

Populations for Whom Use is Contraindicated

The following absolute non-eligibility rules are formally stated in regulatory product information:

  • Chronic Malabsorption Syndrome or Cholestasis (a liver disorder) [FDA AccessData].
  • Known Hypersensitivity to the active substance, Orlistat, or any of the product’s excipients [EMA Product Information].
  • Pregnancy or Breast-feeding status [NIH StatPearls].

Caution is advised and use may be conditional for patients with pre-existing kidney disease or hepatic impairment [GOV.UK].

What should I know about interactions with other medicines?

Interactions with other medicines and products

Fingras (Orlistat) is minimally absorbed systemically; therefore, its clinically significant drug interactions are primarily absorption-based, resulting in reduced systemic exposure of co-administered lipophilic substances. This profile is defined by restrictions on specific combinations and mandatory timing rules to mitigate interaction risk.


Official Interaction Restrictions and Constraints

Restriction Type Interacting Substance/Class Official Regulatory Statement
Contraindicated Combination Cyclosporine Co-administration is prohibited due to risk of severely decreased plasma concentrations and loss of efficacy.
Contraindicated Combination Warfarin or Oral Anticoagulants Prohibited due to reduced Vitamin K absorption, which can affect coagulation parameters (INR).
Timing Separation Rule Levothyroxine Must be administered at least 4 hours apart from Fingras to prevent reduced absorption.
Timing Separation Rule Fat-soluble Vitamins (A, D, E, K) Multivitamin supplementation must be taken at least 2 hours before or after Fingras to counteract reduced nutrient uptake.

Exposure-Modifying Substances

Co-administration is officially documented to decrease the plasma concentration of several drugs, including Amiodarone and some Antiretroviral and Antiepileptic medications due to absorption interference. Patients taking oral anticoagulants require close monitoring of coagulation parameters due to the potential reduction of Vitamin K absorption. The regulatory profile notes that there is no documented pharmacokinetic interaction with alcohol (ethanol).

Mechanism of Action

The drug acts as a prodrug, which is first converted in the body to its active metabolite, Fingras-P. This active molecule primarily targets the Sphingosine-1-Phosphate Receptor 1 (S1PR1) on lymphocytes (T and B cells). Fingras-P binding to S1PR1 triggers a process of receptor internalization and functional removal from the cell surface. This sustained receptor loss prevents lymphocytes from receiving the necessary signal to exit the lymph nodes, causing their sequestration. This mechanism reduces the number of circulating lymphocytes in the peripheral blood, contributing to reduced potential for cell-mediated inflammation. Fingras-P also penetrates the central nervous system (CNS), interacting with S1PRs on glial cells like oligodendrocytes and astrocytes. This direct CNS action modulates glial cell function and influences signaling pathways associated with neural cell maintenance. Upon initiation, the drug's transient binding to S1PR1 and S1PR3 on cardiac tissue is the mechanistic cause of a temporary reduction in heart rate and altered electrical conduction, which precedes receptor down-regulation.

Dosage and Administration Information

How to Use Fingras — Administration Guidelines

Fingras is an oral medication that must be swallowed once daily. The dose is determined by body weight and the concomitant use of certain other medications. This medicine can be taken with or without food.


Recommended Adult Dosage

The dose is determined based on the patient's actual weight. This dosing is also subject to adjustment if specific drug interactions are present.

Patient Body Weight Standard Once-Daily Dose
Less than 100 kg 80 mg
100 kg or more 100 mg

Dose Adjustment for Other Medicines

If medicines classified as moderate CYP2C8 inhibitors are used, the daily dose of Fingras is reduced to manage potential exposure. For example, a standard dose of 80 mg is reduced to 40 mg, and a standard dose of 100 mg is reduced to 80 mg.

Procedural Steps

  1. Determine the standard daily dose (80 mg or 100 mg) based on the patient’s body weight.
  2. Verify if a dose reduction is required due to the use of specific inhibitor medicines.
  3. Swallow the tablet or capsule once daily; no preparation, splitting, or crushing is required.

This structured protocol ensures that the dosage is personalized based on body weight and adjusted for drug interactions to maintain standardized administration.

Recent Clinical Evidence

Research Evidence / Overview of Studies for Fingras

Evidence for Weight Loss in Overweight and Obesity

The foundational research on Fingras was evaluated in studies exploring body weight primarily through Randomized Controlled Trials (RCTs) in adults classified as overweight or obese. These trials, often lasting one to two years, examined outcomes by monitoring absolute weight loss (in kilograms) and changes in Body Mass Index (BMI).

Findings describe patterns where measurements of body weight reported for the active treatment group contrasted with those reported for the placebo group. Studies reported the proportion of patients achieving specific goals, such as 5% or 10% weight loss, in the active groups versus the control groups. The measured change in body weight reported in these studies is generally modest.

However, the follow-up durations were limited in many studies, meaning long-term effects are not fully established beyond a few years. The results of these studies apply only to the populations studied, and outcomes are often dependent on participants adhering to dietary guidelines.


Evidence for Weight Maintenance and Sustained Outcomes

Research examined whether the weight outcomes observed in initial trials persisted over time, often through extended phases lasting up to four years. This was studied for participants who remained on the active treatment compared to those who switched to a placebo. Studies reported patterns where measurements of weight change during the maintenance period differed between the active treatment group and the placebo group. There is limited information for long-term outcomes beyond the four-year mark of the primary trials.


Evidence for Associated Metabolic Conditions

Research explored the association of Fingras with conditions associated with obesity, including dyslipidemia (impaired cholesterol profiles) and impaired glucose tolerance. Studies monitored key measurements such as LDL-cholesterol, blood sugar markers, and blood pressure.

One notable long-term study was evaluated in a high-risk population where the development of Type 2 Diabetes was monitored. Studies reported a specific rate of Type 2 Diabetes diagnosis in the active treatment group versus the control group. Findings also describe patterns where measurements of cholesterol and blood sugar markers changed in patients with these co-occurring health issues. The measured change in these metabolic outcomes is difficult to distinguish from the patient's simultaneous weight change.


Evidence in Specific Patient Groups

A smaller number of Randomized Controlled Trials were conducted during an intermediate-term duration of about one year, focusing on adolescents (typically between 12 and 17 years old). The research so far describes patterns of change in BMI and weight that were observed in these younger populations compared to placebo. However, the data for certain groups remain insufficient, with sample sizes being modest and a significant lack of long-term follow-up data for adolescents.

Key Studies & References

  1. Efficacy and safety of orlistat in the treatment of obesity in adolescents: a randomized controlled trial (Chanoine et al., JAMA, 2005)
  2. XENDOS Study: Orlistat for the prevention of type 2 diabetes in obese patients with impaired glucose tolerance

Frequently Asked Questions (FAQ)

Common questions about Fingras (FAQ)

Q: What are the most commonly reported side effects of Fingras in patient communities?

A: Official documents describe the most frequent adverse reactions as primarily related to the gastrointestinal system. These effects may include oily spotting, fatty or oily stools, increased defecation urgency, and flatulence. These reports align with the medicine's mechanism of action, which is localized in the gut.

Q: Is it necessary to have routine blood tests while taking Fingras?

A: Official safety management plans for the medicine include a requirement for specific monitoring. This monitoring typically involves checking key health indicators, such as blood cell counts and liver function. The safety management plan describes the requirement for this type of monitoring.

Q: Is it common to feel tired or fatigued when starting treatment with Fingras?

A: Yes, fatigue is listed among the possible adverse reactions that have been reported in association with the medicine. Fatigue is documented in regulatory reports as a possible adverse reaction.

Q: What research is currently underway regarding new uses or formulations of Fingras?

A: Research has been conducted to explore the combined use of the active substance with other compounds. These studies often aim to potentially investigate how combined use might influence effects or to address some of the reported adverse reactions.

Q: Is the effectiveness of Fingras influenced by the patient's diet?

A: Studies and official information indicate that the effectiveness of the medicine is dependent on the patient adhering to a reduced-calorie, low-fat diet. Because the medicine works by blocking fat absorption, it is used in conjunction with a reduced-calorie diet and reduced dietary fat.

Q: Does Fingras start working immediately, or does it take time to notice effects?

A: The medicine's immediate effect on blocking fat digestion begins quickly, typically within one to two days of the first dose. However, noticeable weight outcomes observed in clinical trials usually begin within the first few weeks after starting treatment.

Q: What is the typical time frame mentioned in studies for how long people use Fingras?

A: Official guidance states that treatment should only continue beyond three months if the patient has achieved a minimum 5% weight loss from the start of therapy. This time frame represents the minimum weight loss goal established in official guidance.

Q: Is Fingras typically available in a generic version or only as the brand name?

A: The active substance in the medicine, Orlistat, is available under its generic name. It is also marketed under various distinct brand names, which may offer different strengths.

Q: If I miss a scheduled dose of Fingras, what does official guidance say about what to do?

A: Official instructions recommend taking a missed dose as soon as it is remembered, provided it is within one hour following the main meal. If more than one hour has passed since the meal, the missed dose should be skipped, and guidance indicates the next scheduled dose should be taken at the usual time.

Q: Can Fingras be split or crushed, or must it be swallowed whole?

A: The medicine is supplied as a hard-gelatin capsule and is intended to be swallowed whole. Clinician-focused information suggests that altering the form of the capsule, such as splitting or crushing it, is typically considered an unlicensed practice.

Q: Does official data show any link between Fingras use and changes in mood?

A: Yes, official reports list changes in mood among the possible side effects reported during clinical use. These reports include instances of anxiety and depression.

Q: What is the half-life of Fingras, based on pharmacokinetics information?

A: Pharmacokinetic data describes the time the active substance remains in the body. For the small portion that is absorbed, the half-life of the active ingredient is in the range of 1 to 2 hours. A main metabolite created by the body has a longer half-life of approximately 13.5 hours.

Q: Does Fingras affect sleep patterns, according to patient reports?

A: Official adverse event reports list sleep disorder among the possible side effects that have been reported during treatment with this medicine.

Q: Are there any known long-term effects of taking Fingras for many years?

A: The long-term safety and effectiveness of the medicine for weight maintenance and reduction in associated health complications remain to be determined. The primary clinical trials that established the drug's profile extended over a limited number of years.

Q: What is the meaning of the specific dosage strength number printed on the Fingras pill (e.g., 5mg)?

A: The number printed on the medicine (such as 60 mg or 120 mg) represents the specific amount of the active substance, Orlistat, contained in each capsule. This amount dictates the strength of the medicine.

Q: Are there different brand names for the same active ingredient as Fingras?

A: Yes, the active substance, Orlistat, is sold under multiple distinct brand names in the market, in addition to the generic version.

Q: Does Fingras have any known interactions with birth control pills?

A: The medicine may interfere with the absorption of various co-administered substances, which has been reported to potentially include oral contraceptives. The official documentation also notes that other possible adverse reactions may potentially impact co-administered oral medications.

Q: Is it true that Fingras is related to or similar to [Name of a similar-sounding, unrelated drug]?

A: The medicine is formally classified as a lipase inhibitor that acts locally in the gastrointestinal tract to block fat absorption. This specific, peripheral mechanism distinguishes it from other types of weight-management agents that may act on the central nervous system.

Q: How does Fingras affect the body compared to how a vitamin or supplement might work?

A: Unlike a vitamin or supplement, this medicine is a pharmacological agent, formally classified as a lipase inhibitor. It acts specifically by blocking the activity of digestive enzymes in the gut, which is a targeted, non-nutritional mechanism.

Q: Why do official documents sometimes mention 'Fingras and liver function' together?

A: Official documents describe the potential for significant liver enzyme elevation and list the risk of serious hepatic (liver) injury as a possible adverse reaction. This is why monitoring of liver function is often required during treatment.

Q: What are the general safety profile of Fingras described as in research papers?

A: Research reports generally describe the medicine as fairly well tolerated. Its overall safety profile is dominated by the reports of non-systemic gastrointestinal adverse events, which are related to how the drug works in the digestive system.

How should Fingras be stored and disposed of?

How to Store and Dispose of Fingras

Fingras (Orlistat) must be stored according to official regulatory requirements to maintain its stability. The product should be kept at controlled room temperature, typically 20 C to 25 C (68 F to 77 F), with excursions permitted up to 30 C (86 F). The medicine must be protected from light and moisture and stored in its original container, which must be kept tightly closed.

Handling and Child Safety

It is mandatory to keep Fingras out of the sight and reach of children and to keep it from freezing. Do not use the capsules after the expiration date printed on the package.

Official Disposal

Unused or expired Fingras must be disposed of according to local/national regulations for pharmaceutical waste. Disposal via a drug take-back program is the preferred method. The product must not be flushed down a toilet or sink to prevent environmental release.

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

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