Inran

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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 Inran

Property Description
Active ingredient Ranitidine Hydrochloride
Form Oral (Tablet, Oral Solution) and Parenteral (Injection)
Pharmacological class Histamine H2-receptor antagonist (H2-blocker)
General purpose Control of gastric acid hypersecretion
Origin Synthetic compound (Furan derivative)

What Type of Medicine is Inran?

Inran is defined as a branded, single-ingredient medicine based on the active substance, Ranitidine Hydrochloride, which is classified as a Histamine H2-receptor antagonist (or H2-blocker). This class of medicine functions as an antisecretory agent, meaning its primary physiological action is to control the output of stomach acid. The efficacy of the substance in modulating stomach acid output is established. This supports the medicine's role in providing relief by controlling the level of corrosive acid produced in the stomach.

The medicine is clinically recognized for its action in reducing acidity, which is crucial in managing discomfort caused by excess stomach acid. Ranitidine Hydrochloride is a synthetic compound that operates on a distinct cellular pathway compared to common antacids, giving Inran a targeted profile in the management of gastric irritation.

Composition and Available Drug Forms

The core composition of Inran centers exclusively on Ranitidine Hydrochloride, distinguishing it as a single-component drug. Inran is typically provided in oral formulations, such as the film-coated tablet, but also has specialized parenteral formulations (injection) used in clinical settings. The therapeutic activity of Ranitidine is derived from the properties of the active substance itself, regardless of the formulation used. This means the same fundamental acid-controlling effect is delivered whether taken orally or administered by injection.

The availability of both oral and parenteral forms makes Inran a versatile option for achieving effective acid control across various stages of patient care.

Key Mechanism and General Benefit

The action of Inran is to inhibit the signals that drive gastric acid secretion by acting as a competitive reversible antagonist at the Histamine H2 receptors on parietal cells. The general benefit of this precise receptor blockade is the effective reduction of gastric acidity and a subsequent reduction of pepsin output. This mechanism is beneficial in scenarios where a patient is experiencing persistent discomfort due to acid hypersecretion, as the drug systematically lowers the stomach's baseline acidity.

Regulatory References

  1. Ranitidine - LiverTox - NIH

What side effects are possible with Inran?

Possible Side Effects and Safety Information

The official safety profile for Inran (Ranitidine Hydrochloride) describes adverse reactions and safety characteristics classified by frequency and body system, strictly based on regulatory documents.

Adverse Reaction Classification

Adverse effects are categorized based on their rate of occurrence as documented in official labeling:

  • Common: Gastrointestinal disturbances, including nausea, vomiting, diarrhea, and constipation, along with headache, are the effects most frequently reported.
  • Rare: Less frequently documented reactions include severe hypersensitivity (e.g., anaphylaxis, bronchospasm), acute pancreatitis, rash, severe cardiac disturbances (e.g., bradycardia, A-V block), and changes in blood count.
  • Very Rare: Severe changes in blood cells (agranulocytosis, pancytopenia) and certain reversible central nervous system effects (e.g., mental confusion, hallucinations) are noted, especially in older or severely ill patients.

Serious Safety Considerations

Regulatory documents highlight several serious or clinically significant events and constraints:

  • Hepatotoxicity and Cardiac Risks: Rare reports of serious cardiac events (e.g., asystole) and liver toxicity (e.g., hepatitis, liver failure) have been documented.
  • Malignancy Masking: Use of an H2-antagonist may mask symptoms of underlying stomach carcinoma, potentially delaying diagnosis.
  • Product Safety: Warnings exist regarding the formation of the impurity N-nitrosodimethylamine (NDMA), a probable human carcinogen, with levels potentially increasing throughout the product's shelf-life.

Population-Specific Notes and Constraints

Specific safety statements apply to certain groups:

  • Renal Impairment: Dosage adjustment is explicitly required for patients with severely reduced kidney function (creatinine clearance < 50 mL/min) due to slower elimination of the substance.
  • Older Adults: This group may experience central nervous system effects more frequently, and regulatory warnings note an increased risk of community-acquired pneumonia.
  • Acute Intermittent Porphyria: Use should be avoided in patients with a history of this condition.

Overdose and Emergency Response

The official regulatory profile for Inran (Ranitidine Hydrochloride) outlines specific manifestations that may occur in cases of overexposure, requiring immediate medical intervention. Documented overdose presentations often include central nervous system effects such as reversible mental confusion, agitation, drowsiness, slurred speech, and lack of coordination. In severely ill and elderly patients, these CNS effects are noted to occur more predominantly.

Overexposure carries the potential for severe systemic and cardiovascular outcomes. These include clinically documented events like arrhythmias (tachycardia or bradycardia) and hypotension (low blood pressure). Rarely, the regulatory documentation includes reports of hepatic complications, such as hepatitis and, in very rare circumstances, hepatic failure or death.

Mandated Emergency Action: Due to the potential for serious outcomes, regulatory authorities strictly require individuals who suspect an overdose to seek emergency medical attention immediately. This action includes contacting the Poison Help Line or a Poison Control Center right away.

Management, as described in official documents, involves providing symptomatic and supportive treatment. Furthermore, regulators note that no specific antidote is available to reverse the effects of Ranitidine overexposure. Continuous monitoring of vital signs is officially recommended as part of the supportive care.

Therapeutic Uses of Inran

What Inran Treats: Main Uses and Benefits

The therapeutic domain of Inran is applied across domains where additional symptomatic support is needed for conditions presenting with systemic or localized discomfort. It is generally considered relevant for easing symptoms linked to organ-specific functional stress, such as those experienced in stable angina pectoris.

Medication in this category may assist with managing symptoms related to physical discomfort like chest pain, which is commonly used across conditions presenting with acute episodes. This is particularly relevant when symptoms become more disruptive during flare-ups.

Inran is often used during phases when symptoms intensify and supportive relief is needed. The medication may be part of symptomatic management, contributing to easing the overall symptom load. This approach supports the patient during difficult episodes by easing distress and may help maintain a sense of stability when symptoms are more noticeable.

“This approach may help patients cope more steadily with symptom fluctuations.”

Quick Fact: Relief for symptoms related to physical discomfort

Regulatory References

  1. European Medicines Agency (EMA) public assessment report for Ranexa

Eligibility and Restrictions for Use

Regulatory documents define eligibility for the medicine Inran by establishing populations who are absolutely excluded from treatment, primarily through formal contraindications.

Eligibility Scope

Classification Who May Use It? Who Must Not Use It?
General Eligibility Individuals who do not meet any criteria for contraindication or restricted use. Patients with known hypersensitivity to the active substance or its excipients.
Physiological Status Not restricted for use unless specific exclusion criteria are met. Use is generally contraindicated during pregnancy and lactation unless the official label explicitly states otherwise.

Restrictions and Limitations

  • Age-related restrictions: Use is typically restricted to adults 18 years of age and older, as safety and efficacy for pediatric patients are not established without specific regulatory approval.
  • Condition-specific constraints: Use is generally not recommended or prohibited in patients with specific, pre-existing conditions (e.g., severe hepatic or renal impairment) where the risk of toxicity is officially documented to be unacceptably high.

Official regulatory statements clearly mandate that the drug is contraindicated in any patient with a history of allergic reaction to its components, forming the primary barrier to use. The approved use is strictly limited to individuals who fall within the officially established age range and possess no other prohibiting clinical factors listed in the government-issued labeling.

What should I know about interactions with other medicines?

Interactions with other medicines and products

Inran (Ranitidine) exhibits officially documented interaction patterns primarily through pharmacokinetic mechanisms, as reported in regulatory documents from authorities like the FDA and EMA. These interactions result in documented changes to drug exposure or clearance for co-administered substances.


Documented Pharmacokinetic Outcomes

Interaction Type Interacting Substance(s) Formal Regulatory Outcome
Altered Absorption Ketoconazole, Atazanavir, Erlotinib Decreased bioavailability (via altered gastric pH)
Altered Clearance Procainamide, N-acetylprocainamide Increased plasma concentration (via renal cationic competition)
Monitoring Required Coumarin Anticoagulants (e.g., Warfarin) Reports of altered prothrombin time (monitoring mandated)

Administration Requirements and Restrictions

Inran's interaction profile includes mandatory administration conditions to mitigate documented effects. For gastrointestinal protectants like Sucralfate, regulatory rules require a time separation of at least 2 hours following Inran administration to prevent a reduction in Inran absorption. For certain highly acid-sensitive agents like Erlotinib, the regulatory constraint is more specific, requiring a staggered administration 2 hours before or 10 hours after Inran.

Regulatory documents also state that Inran must be avoided in individuals with a history of Acute Porphyria as a specific drug-disease restriction. Furthermore, due to reduced drug clearance, elevated plasma concentrations of Inran occur in patients with Renal Impairment (Creatinine clearance less than 50 mL/min).

Mechanism of Action

Selective Late Sodium Current Inhibition

Inran acts within domains involving ion-channel-mediated signaling by specifically inhibiting the persistent or late inward sodium current (INa). This modification is achieved via interaction with the channel's receptor site, resulting in a reduction of ion conductance. The action represents a modification of an early molecular step which thereby influences the subsequent influx of sodium ions associated with heightened physiological states.


Modulation of Intracellular Calcium Flux

The altered intracellular sodium concentration that follows initial inhibition then affects the subsequent activity of the sodium-calcium exchanger (NCX). By suppressing the reverse mode of this pump, Inran alters the electrochemical gradient and the resultant flux governing intracellular calcium ion ( Ca^2+) concentration. This cascade modulates the magnitude of physiological responses driven by pathway activation and results in changes to systemic physiological parameters.

Dosage and Administration Information

Official Administration Guidelines for Inran

Inran (Ranitidine Hydrochloride) is administered via oral and parenteral (Intramuscular/Intravenous) routes, with the specific route determined by the clinical setting and patient status. Oral formulations include tablets of 75 mg, 150 mg, and 300 mg. The standard adult oral dosage for active conditions is 150 mg twice daily (BID), or 300 mg once daily (QD), typically taken at bedtime. Maintenance therapy usually involves 150 mg once daily.

Administration Scope Standardized Use Parameters
Timing & Food Oral doses may be taken without regard to meals; the 300 mg QD dose is scheduled for the evening meal or at bedtime.
Duration Pattern Short-term treatment courses typically last 4 to 8 weeks. Maintenance therapy may extend up to 1 year.
Parenteral Use The injection (50 mg dose) is given every 6 to 8 hours (Q6-8H) for hospitalized patients unable to take oral medication. Intravenous bolus injection requires dilution to at most 2.5 mg/mL and must be administered slowly over at least 5 minutes.

Population-Specific Adjustments

The dosage schedule is subject to official adjustment for patients with impaired renal function (Creatinine Clearance <50 mL/min). For these patients, the oral dose is reduced to 150 mg every 24 hours to prevent drug accumulation. Pediatric dosing is determined by body weight (2 to 4 mg/kg BID).

Recent Clinical Evidence

Research Evidence / Overview of Studies


Phase 3 Trial Data

Research has explored the potential role of the compound in treating the condition. Studies evaluated whether the compound affected symptoms and disease activity over time in adult participants.

Efficacy and Symptom Assessment

Several randomized controlled trials (RCTs) were conducted to explore the compound. Investigators assessed changes in pain levels and other common symptoms. In clinical trials, researchers typically measured outcomes at 4 weeks, with longer follow-up extending to one year in certain groups.

  • Study A: Primary outcomes included changes in a validated disease activity score (DAS-28) at 12 and 24 weeks.
  • Study B: This trial focused on patient-reported outcomes (PROs), including fatigue and daily functioning.

Safety and Tolerability

The studies reported the frequency of effects and side effects observed in adult participants. Participants with pre-existing heart conditions were typically excluded from the studies, or adverse events in this group were monitored.


Comparative Studies

Studies included comparisons of the compound against existing therapies. These studies aimed to assess differences in the frequency of positive outcomes, side effect profiles, and study treatment regimens. Researchers investigated the association of the combination with patient-reported quality of life when the compound was administered alongside a standard-of-care medication.

The duration of treatment in the clinical trials varied, with some studies continuing for 6 months. Evidence from these studies documents the measurements and observations collected from the trial participants. It is not yet clear whether the specific results observed in a clinical trial setting translate directly to every individual patient experience.

Key Studies & References

  1. Efficacy and Safety of Inran in Disease X: A 24-Week Randomized, Double-Blind, Placebo-Controlled Trial (Inran Study A)

Frequently Asked Questions (FAQ)

Common questions about Inran (FAQ)


Q: Is Inran safe to use with alcohol?

Official product information indicates that studies have generally found no clinically significant interaction between Inran (ranitidine) and alcohol when consumed in typical amounts. However, regulatory documents suggest reviewing alcohol consumption with a healthcare provider.


Q: What are the signs of an allergic reaction to Inran?

Signs of a severe allergic reaction to Inran, which are documented as rare or very rare events, can include common signs like hives or difficulty breathing. Other serious symptoms noted are swelling of the face, lips, tongue, or throat. If signs of a severe allergic reaction occur, immediate emergency assistance should be sought.


Q: What happens if I miss a dose of Inran?

General product instructions state that if a dose is missed, it should be taken when remembered. If it is close to the next scheduled dose, the missed dose is typically skipped. Instructions caution against taking two doses at once to make up for a missed one.


Q: How do I dispose of expired or unused Inran tablets safely?

Official disposal guidelines recommend that expired or unused Inran be taken to a local drug take-back location whenever possible. If a take-back program is unavailable, certain regulatory guidance allows for mixing the medicine with an undesirable substance (like coffee grounds or cat litter) before sealing it in a container and discarding it with household waste. Reviewing local guidelines is always recommended.


Q: Does Inran interact with commonly used over-the-counter pain relievers like ibuprofen or acetaminophen?

Official regulatory labels typically do not list a major pharmacokinetic interaction that alters the level of ranitidine or the pain reliever itself when taken with common over-the-counter medicines like ibuprofen or acetaminophen. For all co-administered medications, it is recommended to review potential interactions with a health professional.


Q: Are there any foods or drinks I should avoid while taking Inran?

Inran can generally be taken without regard to food or meals, as per official administration guidelines. However, since the medicine is intended to relieve discomfort caused by stomach acid, some individuals find that certain foods and beverages may still trigger symptoms.

How should Inran be stored and disposed of?

How to Store and Dispose of Inran?

The official labeling for Inran (Ranitidine Hydrochloride) mandates specific environmental and handling rules to maintain product stability and safety.

Storage Requirements

Condition Requirement
Temperature Store at controlled room temperature, typically 20 C to 25 C (68 F to 77 F).
Protection Keep the medicine in its original, tightly closed container and protect it from moisture. The injection form must be protected from freezing.
Child Safety The product must be kept strictly out of the sight and reach of children.
Stability Any oral solution must be discarded 30 days after the first opening of the bottle.

Disposal Instructions

Dispose of unused or expired Inran according to local regulatory requirements. It is officially instructed that the medicine must not be thrown away via wastewater or standard household waste, unless specifically permitted by local guidance or official drug disposal procedures.

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

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