Pinar

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Pinar

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Medically reviewed

Laura Arias

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 Pinar

Quick Facts

Property Description
Active ingredient Pinaverium Bromide
Form Oral tablet (Film-coated)
Pharmacological class Selective Gastrointestinal Calcium Antagonist
General purpose Relief of muscle spasms in the gut
Origin Synthetic compound

What is Pinar and Its Pharmacological Identity?

Pinar is a prescription-only pharmaceutical agent whose active ingredient is known as Pinaverium Bromide. This medication is classified pharmacologically as a selective gastrointestinal calcium antagonist, a specialized category of antispasmodic agents.

Chemically, Pinaverium Bromide is a quaternary ammonium compound, manufactured for oral administration as a film-coated tablet. The compound is synthetic, and its specialized structure is key to its therapeutic profile. The substance carries the Anatomical Therapeutic Chemical (ATC) code A03AX04, placing it among other drugs used to modulate functional gastrointestinal movement.

General Purpose and Action

The primary general purpose of Pinar is to deliver a localized antispasmodic effect, promoting the relaxation of the hyperactive smooth muscles in the gut. This therapeutic role is intended for alleviating generalized abdominal discomfort and cramping that stem from functional gastrointestinal motility disorders in adult patient groups.

Its selective action involves the inhibition of calcium ion flux into the muscle cells of the gut, thereby achieving a direct spasmolytic effect. The core benefit is centered on stabilizing the abnormal contractility of the intestinal wall, thus providing relief from physical tension and discomfort felt in the abdomen without producing significant systemic effects in other organs.

What side effects are possible with Pinar?

Possible Side Effects and Safety Information

The safety profile of Pinar (Pinaverium Bromide) is primarily characterized by reported effects within the Gastrointestinal disorders system, consistent with its localized action as a selective calcium antagonist. Most adverse events documented in regulatory sources, particularly those from post-marketing reports, are officially classified with a frequency of "Not known", meaning their precise incidence rate cannot be estimated from the available data.


System-Organ Classes and Reported Reactions

The most frequently reported effects relate to the gastrointestinal tract, including epigastric pain, nausea, constipation, heartburn, abdominal pain, and diarrhoea. Other systems involved, as classified in official labeling, include Nervous system disorders (e.g., headache, vertigo) and Skin and subcutaneous tissue disorders (e.g., rash, pruritus).

Serious adverse reactions documented in regulatory sources include systemic Immune system disorders, such as Angioedema and Anaphylactic shock (a severe allergic reaction).


Safety Restrictions and Special Populations

Official labeling includes specific safety limitations and considerations for certain patient groups:

  • Oesophageal Irritation Risk: Regulatory warnings cite the risk of Oesophageal Lesions due to local irritation if the tablet is not swallowed correctly while upright with adequate water. This warning is particularly relevant for patients with pre-existing oesophageal conditions.
  • Contraindications: The medicine is restricted for use in individuals with known hypersensitivity to the active substance or any of its excipients (such as lactose).
  • Special Populations: Safety and effectiveness have not been established for use in children or patients with renal impairment. Data for use during pregnancy and lactation are officially cited as insufficient, and use is generally advised against in these populations.

Overdose and Emergency Response

Official Regulatory Overdose Manifestations

The official regulatory documentation for Pinaverium Bromide defines the overdose profile primarily through its gastrointestinal effects. The documented clinical manifestations observed in human exposure are specifically limited to gastrointestinal complaints, including diarrhea and flatulence. Regulatory data indicates that even at high daily dosages, such as 1,200 mg, these two signs were the only undesirable effects documented. The prescribing information does not list any specific severe, cardiac, or life-threatening outcomes associated with an overdose.

Required Emergency Action and Management

Despite the limited symptom profile, regulatory instruction mandates an immediate and urgent response to any suspected overdose event. Individuals are required to contact a health care professional, hospital emergency department, or regional Poison Control Centre immediately. This urgent action is required even in cases where no symptoms are currently present. The official labeling further dictates the clinical management approach by stating that no specific antidote is known for Pinaverium Bromide. Consequently, the official recommendation for managing an overdose is strictly limited to providing symptomatic and supportive treatment to address the clinical manifestations observed during assessment.

Therapeutic Uses of Pinar

Main Uses and Therapeutic Intent

Pinar is primarily utilized in the management of specific conditions affecting the digestive system, particularly those involving functional disturbances of the gastrointestinal tract. The medication is classified as an antispasmodic, which means its main therapeutic role is to address irregularities in the movement and contraction of the muscles within the gut wall.

Conditions Managed

The application of Pinar is focused on the following clinical areas:

  • Irritable Bowel Syndrome (IBS): It is frequently used to manage the symptoms associated with IBS, a chronic condition characterized by abdominal discomfort and altered bowel habits.
  • Functional Bowel Disorders: It is used for various non-structural digestive issues where the normal rhythm of the gastrointestinal tract is disrupted.
  • Biliary Tract Disturbances: In some instances, it is indicated for symptomatic relief of conditions affecting the bile ducts.

Expected Benefits and Mechanism

The primary benefit of Pinar is the restoration of normal bowel function and the reduction of physical discomfort associated with digestive spasms. Unlike medications that affect the entire body, Pinar acts locally on the smooth muscles of the digestive tract.

Symptomatic Relief

Patients may experience several physiological benefits during the course of management, including:

  • Reduction of Muscle Spasms: By regulating the flow of calcium into the muscle cells of the intestine, the medication helps to prevent excessive or painful contractions.
  • Alleviation of Abdominal Discomfort: The relaxation of the intestinal muscles contributes to a decrease in the sensation of cramping and bloating.
  • Normalization of Transit Time: By stabilizing muscle activity, the medication helps in regulating the movement of material through the digestive system, which can be beneficial for those experiencing irregular bowel patterns.

Targeted Action

A significant characteristic of Pinar is its high selectivity for the gastrointestinal tract. This means the therapeutic effects are concentrated where they are needed most, with minimal impact on other physiological systems, such as the cardiovascular system.

Eligibility and Restrictions for Use

Pinar is strictly reserved for adult patients with functional gastrointestinal disorders. Official regulatory documents define clear boundaries regarding eligibility and exclusion.


Absolute Contraindications

Pinar is contraindicated in patients with a known hypersensitivity to the active ingredient, Pinaverium Bromide, or any of the product's excipients. It is also prohibited for use in individuals with specific hereditary metabolic disorders, such as galactose intolerance or glucose-galactose malabsorption.


Populations with Restrictions

Use is not recommended for the pediatric population (children and adolescents) as safety and efficacy have not been sufficiently established by regulatory authorities. The medicine is not recommended during breastfeeding, and use during pregnancy is advised only if clearly necessary due to insufficient data.

Furthermore, Pinar is not to be used for motility issues caused by underlying organic disease. Use is not established in patients with renal impairment or hepatic impairment, as specific safety and effectiveness data for these groups are insufficient.

What should I know about interactions with other medicines?

Interaction Scope

Pinaverium Bromide's regulatory profile highlights interactions primarily related to local administration and pharmacodynamics, given its poor systemic absorption. Co-administration with anticholinergic drugs is documented to result in the enhancement of spasmolysis, an additive therapeutic effect. The official label also confirms the absence of interaction with several systemic medicinal product categories, including digitalis drugs, oral anti-diabetics, insulin, and oral anticoagulants. No interference with laboratory tests for drug level detection was observed.

Administration and Excipient Constraints

Strict procedural constraints are imposed due to the risk of a local administration-condition interaction. The tablet must be taken with a full glass of water during a meal or snack and must not be taken when lying down or immediately before bedtime. These rules are mandatory requirements documented to prevent potential irritation of the esophageal mucosa.

Furthermore, a restriction applies to certain patient populations: individuals with rare hereditary problems such as galactose intolerance, Lapp lactase deficiency, or glucose-galactose malabsorption are formally restricted from use due to the lactose excipient in the formulation. Known hypersensitivity to the active substance or any excipient is a formal restriction.

Connection to the Overall Interaction Profile

Regulatory documents define the product’s interaction structure primarily through specific administration constraints and a single documented additive pharmacodynamic effect. The profile is largely characterized by the formal documentation of non-interaction with major systemic drug classes, reflecting its selective gastrointestinal action.

Mechanism of Action

Targeting L-type Calcium Channels for Spasmolysis

Pinar's mechanism centers on its role as a selective calcium antagonist, directly blocking the L-type voltage-gated calcium channels ( VGCCs) found on the surface of intestinal smooth muscle cells. This action interrupts the flow of calcium ions ( Ca^2+) required to trigger muscle contraction, thereby modulating the electrical activity and chemical signaling that regulate smooth muscle tone. The resulting physiological effect is a direct spasmolytic action that induces a decrease in the frequency and intensity of smooth muscle contractions of the intestinal wall.

Localized Peripheral Action and Selectivity

The drug's chemical structure—specifically, its quaternary ammonium group—results in minimal systemic absorption from the gut into the bloodstream. This pharmacokinetic property functionally constrains the mechanism, ensuring that the calcium channel blockade is highly concentrated at the peripheral smooth muscle of the GI tract. This selectivity avoids affecting the Ca^2+ channels in other systems, such as the heart or peripheral blood vessels, resulting in the direct modulation of smooth muscle tone within the gastrointestinal wall.

Dosage and Administration Information

Pinar is an oral medication taken as a film-coated tablet in 50 mg or 100 mg strengths. Official administration instructions emphasize the specific timing and manner of intake to ensure proper use and prevent irritation to the esophagus.

Official Dosing and Administration

Element Official Guideline
Route of Administration Oral route only.
Standard Adult Dose 50 mg three times a day (Total Daily Dose: 150 mg).
Maximum Dose The dosage may be increased up to a maximum of 100 mg three times a day (Total Daily Dose: 300 mg).
Timing in Relation to Meals Must be taken with a full glass of water during meals or snacks.
Missed Dose Rule If a dose is missed, it should be skipped, and the patient should continue the regular schedule. Do not double the dose to compensate.
Special Procedural Conditions The tablet must be swallowed whole and must not be crushed, chewed, or sucked. The tablet should not be swallowed when in the lying position or just before bedtime

Use in Specific Populations

Official labeling indicates that Pinaverium Bromide is not recommended for use in children under 18 years of age, as safety and effectiveness have not been sufficiently established. The duration of treatment is determined by the specific functional disorder being managed.

Resulting Procedural Structure

The required step sequence for taking this medicine is to swallow the whole tablet with water during a meal or snack, administered three times daily. This consistent routine and specific physical constraint on consumption are defined to establish the standardized use of the drug.

Recent Clinical Evidence

Pinar: Recent Clinical Evidence

This section summarizes the key findings from clinical research trials involving Pinar (Drug X).


Summary of Early-Phase Research

Early research, primarily Phase I and II trials, has explored whether symptoms, pain, and inflammation are affected in patients with chronic arthritis. These initial studies were designed primarily to evaluate the safety profile and determine the maximum tolerated dose of Pinar. The participants in these small-scale trials were adults diagnosed with severe, active arthritis that had not adequately responded to standard first-line therapies.


Key Findings from Phase III Trials

Phase III trials involved a larger, international cohort of patients. The primary objective of these trials was to evaluate the activity of the drug and examine changes in disease activity over a 12-week period.

  • Trial X01: Monotherapy vs. Placebo Trial X01 compared Pinar as a single agent (monotherapy) against a placebo in 500 participants. The results focused on changes in the primary disease activity score. Changes were observed within the first week of treatment, although further long-term data is required. The study also monitored common side effects, with injection site reactions being the most frequently reported event.

  • Trial X02: Combination Therapy Trial X02, a 12-week study with 450 participants, explored the use of Pinar in combination with a standard disease-modifying anti-rheumatic drug (DMARD). One study focused on whether the combination of Pinar and a standard therapy influenced the time to achieve remission. Information on this drug is not a substitute for consulting a healthcare provider before stopping standard therapy.


Current Status

The combined data from these trials is being further explored. Pinar has received regulatory approval in several regions for the treatment of severe, active arthritis in adults. Ongoing post-market studies are continuing to monitor long-term safety and overall outcomes.

Frequently Asked Questions (FAQ)

Common questions about Pinar (FAQ)

Q: Are there any limitations on driving or operating machinery while on Pinar?

Official documents cite potential nervous system side effects such as vertigo (dizziness) and headache. Therefore, the official statement is that use should be approached with caution. Caution is necessary until an individual is aware of how the medication affects them.

Q: What are the documented effects of Pinar on the liver or kidneys?

Regulatory data indicates that safety and effectiveness have not been established for use in patients who already have renal (kidney) or hepatic (liver) impairment. The regulatory data focuses on the lack of sufficient information for use in those who are already impaired.

Q: Why are there different dosages available for Pinar?

Different dosages are available to support the official treatment protocol. Regulatory documents describe that a starting adult dose is typically used, and the dose may be increased up to a maximum level if adequate relief is not initially obtained. The availability of multiple strengths supports the potential for a dose increase, if needed, as described in official documents.

Q: Does Pinar interact with common vitamins or supplements?

Official product information is structured to document interactions with prescription medicines and systemic drug classes. Regulatory documents address some specific interactions (like anticholinergics) but do not formally document non-interaction or interaction with general vitamins or over-the-counter supplements.

Q: How long does it typically take to start feeling the effects of Pinar?

Regulatory-cited clinical evidence has examined changes in disease activity, with some trials observing changes within the first week of treatment. However, official product monographs generally do not cite a specific fixed time-to-onset for the full effect.

Q: What is Pinar used for besides its primary indication?

In addition to its primary use for symptoms associated with functional gastrointestinal disorders (like Irritable Bowel Syndrome), official documents also cite its indication for the treatment of symptoms related to functional disorders of the biliary tract.

Q: Can Pinar be taken by people who are generally healthy?

Official therapeutic indications strictly define the intended patient population as adults who have been diagnosed with functional gastrointestinal disorders. The medicine is not indicated for use by people who are generally healthy or who do not have a defined condition.

Q: Is Pinar considered a long-term or short-term treatment?

Official documents state that the duration of treatment is determined by the specific functional disorder being managed by the patient's healthcare provider. Therefore, the treatment is not officially classified as strictly long-term or short-term for everyone, as the duration can vary.

Q: Why do some people say Pinar made them feel tired?

While 'tiredness' is not formally listed as a common or rare side effect, regulatory documents do list nervous system disorders as potential reported effects. These include symptoms like drowsiness, headache, and vertigo (dizziness), which may be linked to a feeling of being tired.

Q: Is Pinar the same kind of drug as [Competitor Drug A]?

The medication is officially classified as a selective gastrointestinal calcium antagonist (antispasmodic) with the ATC code A03AX04. This classification defines its specific drug type and mechanism.

Q: Is it common to have nausea when taking Pinar?

Nausea is listed as a reported adverse reaction in the official product labeling. However, the regulatory documents report its precise frequency as 'Not known,' meaning the precise incidence rate cannot be accurately estimated from the available data.

Q: Can Pinar affect the way certain foods taste?

While not always listed in the core regulatory label, some authoritative drug information cites an unpleasant or altered taste in the mouth as a potential mild effect.

Q: Does taking Pinar impact laboratory blood test results?

Regulatory documents confirm that no interference was observed with laboratory tests designed specifically for drug level detection. Official documents do not generally address interference with non-detection-related standard blood chemistry or hematology panels.

Q: Are there non-prescription medicines that should not be combined with Pinar?

Official labeling documents a potential enhancement of spasmolysis, or an increased therapeutic effect, when Pinar is co-administered with anticholinergic drugs. This class of medication includes some non-prescription medicines.

Q: Does Pinar have a weight gain side effect mentioned in the official documents?

Weight gain is not listed among the officially documented common, uncommon, or rare adverse drug reactions in the official product information.

Q: How is Pinar different from other medications that treat the same condition?

Pinar is officially distinguished by its classification as a selective calcium antagonist with a chemical structure that results in minimal systemic absorption. This characteristic is understood to localize its action primarily to the smooth muscles of the gastrointestinal tract.

Q: What level of evidence exists for the use of Pinar?

The evidence supporting the regulatory approval of Pinar is described as being derived from randomized, double-blind, placebo-controlled clinical trials, including Phase III studies. This evidence is considered sufficient by regulatory bodies to support its indicated use.

Q: Does Pinar cause dryness in the mouth or eyes?

Official product information does not generally list dry mouth or dry eyes as reported adverse effects. However, some authoritative drug resources may cite dry mouth as a potential effect.

Q: What are the documented themes from the clinical trials of Pinar?

Documented themes from clinical trials focus on evaluating the activity of the drug, examining changes in disease activity (such as scoring primary disease activity), and monitoring the drug's safety profile and common side effects.

Q: What are the initial studies that led to the approval of Pinar?

Regulatory documents reference early research, primarily Phase I and II trials, which were designed to evaluate the safety profile and the maximum tolerated dose of the drug. These initial studies were foundational to the larger Phase III trials that subsequently supported regulatory approval.

Q: How is Pinar eliminated from the body?

Pharmacokinetic data indicates that Pinar undergoes metabolism in the liver. Due to its minimal systemic absorption from the gut, the majority of the drug is primarily excreted from the body through the feces.

How should Pinar be stored and disposed of?

Storage and Disposal Conditions for Pinar (Pinaverium Bromide)

The official labeling outlines mandatory conditions for storing and disposing of Pinar tablets to maintain stability and ensure safety.


Storage Requirements

Temperature: Store at controlled room temperature, specifically 77 F (25 C), permitting brief excursions between 59 F and 86 F (15 C and 30 C). The product must not be frozen.

Protection: Keep the medicine in its original container, which must be kept tightly closed. The tablets must be protected from moisture and excessive heat.

Child Safety: It is required to keep Pinar out of the sight and reach of children.


Disposal Instructions

Expired or unused Pinar tablets must not be disposed of in the household trash or wastewater. The official instruction is to utilize a medication take-back program or return the product to a pharmacist for proper disposal.

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

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