Ciprinol SR

Quick links to important sections

Ciprinol SR

Selected form

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 Ciprinol SR

Property Description
Active ingredient Ciprofloxacin (as hydrochloride)
Form Extended-release tablet (SR - Sustained Release)
Pharmacological class Fluoroquinolone antibiotic
Common use Treating bacterial infections
Origin Synthetic

What Type of Medicine is Ciprinol SR? (Identity, Class, and Composition)

Ciprinol SR is a synthetic, prescription-only antimicrobial agent whose core component is the active ingredient ciprofloxacin. It is precisely classified as an antibiotic, specifically belonging to the Fluoroquinolone class of medicines. This single-ingredient product is used for oral administration and for its action against infectious pathogens. The chemical structure of ciprofloxacin, which is typically administered as ciprofloxacin hydrochloride, places it in a category of broad-spectrum antibiotics known for their effectiveness against a wide array of susceptible bacteria. Understanding its classification as a Fluoroquinolone is key to recognizing its targeted action against bacterial cells.


Understanding Ciprinol SR as an Extended-Release (SR) Antibiotic (Form and General Purpose)

Ciprinol SR is formulated as an extended-release tablet, where the SR designation indicates a Sustained Release mechanism that prolongs the drug's effect. This unique dosage form is designed to slowly and consistently release the active ingredient, ciprofloxacin, over a longer period following oral administration. This contrasts with immediate-release ciprofloxacin tablets, offering a key differentiating factor in the medication's therapeutic application and patient groups (adults ge 18 years) for certain bacterial infections. The general purpose of this medicine is to help the body address bacterial infections caused by susceptible bacteria; for example, in cases like complicated or uncomplicated urinary tract infections (UTIs). It achieves this through a bactericidal effect. This means the medication kills the bacteria causing the illness, rather than just slowing their growth, providing a means to clear the infection.

Regulatory References

  1. Ciprofloxacin: MedlinePlus Drug Information

What side effects are possible with Ciprinol SR?

Possible Side Effects and Safety Information

As a Fluoroquinolone antibiotic, the safety profile of Ciprinol SR (ciprofloxacin extended-release) is defined by officially documented adverse reactions and specific regulatory warnings.

Serious Adverse Reactions and Safety Warnings

The most critical safety considerations, highlighted by high-tier regulatory warnings, involve disabling and potentially irreversible reactions affecting key physiological systems. These include injury to the tendons (Tendinitis and Tendon Rupture), nerve damage outside the central nervous system (Peripheral Neuropathy), and effects on the brain and spinal cord (Central Nervous System Effects), such as seizures or psychosis. The official label also notes the risk of Hepatotoxicity (liver injury), serious allergic events (Hypersensitivity Reactions), and cardiovascular issues like Aortic Aneurysm and Dissection.

General Adverse Reactions and Frequency

Adverse events are classified across several System Organ Classes (SOCs). Reactions affecting the Gastrointestinal system are among the most common. In clinical studies for the extended-release form, the most frequently reported adverse reactions (ge 2%) include Nausea, Headache, Dizziness, Diarrhea, and Vomiting. Other documented effects involve the Skin (e.g., rash, photosensitivity), Hepatobiliary system (e.g., abnormal liver function tests), and Musculoskeletal system.

Population-Specific Safety Considerations

Official labeling includes specific notes for certain groups. Older Adults have a heightened risk of severe tendon disorders. Clearance of the medicine may be reduced in patients with Impaired Kidney Function, potentially requiring dosage modification. Use is generally Contraindicated in individuals with a known history of hypersensitivity to ciprofloxacin or any other fluoroquinolone.

Overdose and Emergency Response

Ciprinol SR Overdose and when to seek help

The following information details the officially documented manifestations and required emergency procedures for Ciprinol SR overdose, strictly based on government regulatory guidance.

Overdose Scope Official Regulatory Information
Documented Manifestations Official labeling lists CNS effects including dizziness, tremor, confusion, hallucinations, and headache. Severe overdose may present with seizures and abdominal discomfort. Urological findings include crystalluria and hematuria.
Serious Outcomes Documented severe outcomes include reversible renal toxicity linked to crystalluria, and the potential for severe neurological involvement, such as seizures.
Emergency Actions Immediate medical attention must be sought for a suspected overdose. Regulatory guidance explicitly mandates to contact emergency services immediately.
Supportive Management No specific antidote is known. Management focuses on symptomatic treatment and general supportive care. Procedures such as gastric emptying (lavage) or administration of activated charcoal are described, particularly if ingestion was recent.
Monitoring Needs Monitoring requirements include ECG monitoring and checks on renal function and hydration status.
Population Notes An increased risk of crystalluria is noted in patients with pre-existing renal impairment or conditions involving dehydration.

These points detail the Ciprinol SR overdose profile, which is defined by potential severe neurological and renal manifestations according to official regulatory documents. As no specific antidote is known, regulatory guidance strictly requires the individual to seek immediate medical attention and outlines the necessary supportive care and monitoring, including continuous observation and checks on renal integrity and cardiac status.

Therapeutic Uses of Ciprinol SR

What Ciprinol SR Treats: Main Uses and Benefits

Ciprinol SR is relevant in clinical settings that involve acute or unstable symptom patterns associated with certain bacterial infections. It is applied in addressing conditions associated with acute or disruptive episodes, relevant in contexts involving urological infections that include bladder and kidney involvement.

Supportive Management for Urological Infections

The primary therapeutic use is in managing symptoms that create noticeable physiological strain, such as painful and frequent urination and the associated symptoms related to systemic imbalance, including fever and localized flank discomfort. The medication is commonly used to help with groups of symptoms that may become intense or disruptive, supporting the patient during difficult episodes by easing distress.

Used in settings marked by temporary physiological imbalance, the sustained-release feature supports the patient by assisting with maintaining functional stability when symptoms are more noticeable. It contributes to improved comfort during periods of heightened symptoms and is relevant when supportive symptom management is appropriate.


Quick Fact: Supportive Management for Acute UTI Symptoms
This medication is commonly used to help manage symptoms related to inflammatory or irritative states in the lower urinary tract, supporting the patient during episodes where symptoms interfere with routine activities.

Eligibility and Restrictions for Use

Who Can and Cannot Use Ciprinol SR?

This section outlines the population eligibility rules for Ciprinol SR (Ciprofloxacin Extended-Release) as defined by official regulatory authorities.


Eligibility and Exclusion Status

Classification Population or Condition
Absolutely Contraindicated Known hypersensitivity (allergy) to ciprofloxacin or any other quinolone antibiotic.
Concomitant use with the drug Tizanidine.
Patients with a known history of Myasthenia Gravis.
Eligible Population Adults (patients ge 18 years of age) only.
Use Not Indicated Pediatric patients (under 18 years of age).

Conditional Use and Restrictions

Eligibility for Ciprinol SR is conditional or restricted for several populations:

  • Severe Renal Impairment: Use is restricted for complicated infections, requiring special consideration for dose adjustment in patients with a creatinine clearance le 30 mL/min.
  • Pregnancy and Lactation: Use during pregnancy is conditional; it is restricted to situations where the potential benefit is determined to justify the potential risk. Caution is exercised when administered to a nursing woman.
  • Older Adults (ge 65 years): Eligible, but this population is noted as having an increased risk for severe tendon disorders.
  • QT Risk Factors: Use should be avoided in patients with known QT interval prolongation or uncorrected hypokalemia.

What should I know about interactions with other medicines?

Interactions with other medicines and products

Ciprinol SR (Ciprofloxacin) possesses officially documented interaction patterns primarily through metabolic inhibition, chelation, and effects on renal clearance, as stated in regulatory labeling.


Contraindicated Combination

Co-administration with Tizanidine is formally contraindicated. This restriction stems from Ciprofloxacin's moderate inhibition of the CYP450 1A2 enzyme, which significantly elevates Tizanidine plasma concentrations, increasing the risk of adverse effects.


Pharmacokinetic Interactions

Ciprofloxacin's action as a CYP450 1A2 inhibitor results in increased plasma concentrations of other drugs metabolized by this pathway, including Theophylline and Clozapine. Conversely, co-administration with Probenecid is documented to interfere with renal tubular secretion, thereby reducing Ciprofloxacin's clearance and increasing its systemic exposure. Ciprofloxacin may also inhibit the renal tubular transport of Methotrexate, potentially increasing its plasma levels.


Absorption and Timing Constraints

The oral absorption of Ciprofloxacin is significantly reduced by substances containing multivalent cations, such as magnesium/aluminum antacids, Sucralfate, and iron or zinc supplements. Official regulatory documents mandate that Ciprinol SR must be administered at least 2 hours before or 6 hours after these preparations. Furthermore, concurrent ingestion of dairy products or mineral-fortified juices alone should be avoided as it reduces drug absorption. The interaction profile also includes a pharmacodynamic effect, specifically the enhancement of the anticoagulant effect of Warfarin.

Mechanism of Action

Ciprinol SR's functional effect is bactericidal, meaning its mechanism causes the active killing of susceptible bacteria by interfering with the pathogen's genetic machinery.

Targeting Bacterial DNA Management Enzymes

The mechanism centers on the active ingredient, ciprofloxacin, which functions as an inhibitor of two critical bacterial enzymes: DNA Gyrase (Topoisomerase II) and Topoisomerase IV. These enzymes manage the complex coiling and separation of the bacterial DNA genome, which are necessary for replication and maintenance of the bacterial genome. The drug binds to and stabilizes the DNA-enzyme complex , physically blocking the enzymes from religation of the temporary cuts they make in the DNA strands.

Initiating the Cell Death Cascade

The irreversible stabilization of the enzyme complex causes widespread, accumulating double-strand breaks across the bacterial DNA. This damage triggers the bacterial emergency repair system, the SOS response, which is unable to restore DNA integrity. The resulting massive and irreparable damage forces the bacterial cell to enter a fatal cascade that leads directly to its cell death. This action is the physiological consequence that results in the destruction of the bacterial cells.

Constraints Due to Target Modification

The drug’s mechanism is constrained by bacterial evolution, primarily through genetic mutations in the target enzymes (DNA Gyrase or Topoisomerase IV) that reduce ciprofloxacin's binding affinity, and the presence of efflux pumps that actively expel the drug from the bacterial cell. These mechanisms reduce the effective concentration of the drug at the target site, compromising the mechanistic outcome.

Dosage and Administration Information

How to Use Ciprinol SR

This section explains the general principles of how Ciprinol SR (Ciprofloxacin Extended-Release) is used in clinical practice.


Official Administration Guidelines

Feature Instruction
Route of Administration The sole approved route is oral (swallowing).
Frequency Pattern Due to its sustained-release (SR) formulation, the medicine is dosed once daily (every 24 hours) for all approved regimens.
Dosing Schedule Standard adult dosing is 500 mg or 1000 mg of ciprofloxacin equivalent once daily, depending on the specific condition being addressed.
Duration of Use Treatment duration is typically short-term, ranging from 3 days for uncomplicated cases to 7 to 14 days for more complicated infections.

Key Procedural Requirements

The integrity of the extended-release tablet is essential for its function. The tablet must be swallowed whole and must not be split, crushed, or chewed. Administration may occur with or without food.

Procedural constraints exist concerning concurrent intake of other products. The medicine must be administered at least 2 hours before or 6 hours after taking products containing metal cations, such as antacids, sucralfate, or certain multivitamin preparations (e.g., those containing iron or zinc). Co-administration with dairy products (like milk or yogurt) or calcium-fortified juices alone is also avoided, as these substances can interfere with the drug's absorption.

Population-Specific Adjustments

Official instructions require dose modification for patients with severe renal impairment (CrCl le 30 mL/min) when the 1000 mg dose is prescribed; it must be reduced to 500 mg once daily. The extended-release formulation is not indicated for use in individuals under the age of 18.

Recent Clinical Evidence

Research evidence / Overview of Studies for Ciprinol SR

Evidence for Use in Uncomplicated Urinary Tract Infections (UTIs)

Research exploring the use of Ciprinol SR for acute infections of the bladder (uncomplicated cystitis) has primarily relied on Randomized Controlled Trials (RCTs). These studies were designed to compare the sustained-release formulation against the standard, immediate-release ciprofloxacin tablet in adult women. Researchers monitored outcomes related to physical discomfort and tracked the microbiological eradication, which means the elimination of the bacteria causing the infection. Studies tracked patterns related to how the extended-release formulation was measured against the immediate-release tablet across defined measurements. The evidence described similar patterns of assessments of both clinical outcomes (e.g., symptom evolution) and the clearance of the bacteria.

Evidence for Use in Complicated UTIs and Kidney Infections

Studies explored short-term symptom changes through prospective, multicenter Randomized Controlled Trials. These studies focused on adult patients with complicated infections, including those involving the kidneys (acute pyelonephritis). Researchers monitored physiological strain associated with the infection, such as fever, alongside tracking the success of bacteriological eradication over defined time intervals. The trials reported observations where the extended-release formulation was assessed against the immediate-release formulation concerning specific microbiological and clinical endpoints.

Research Limitations and Areas of Uncertainty

The clinical evidence primarily tracks outcomes up to the intermediate follow-up period, typically 28 to 42 days after therapy. Long-term outcomes regarding the potential for recurrence are not fully established beyond this period. Additionally, the research structure for use in the pediatric population (children) has not been established for this specific extended-release formulation; therefore, results apply only to the adult populations studied. Scientific bodies note that growing antimicrobial resistance among common pathogens is a limitation that may impact outcomes.

Key Studies & References

  1. International Clinical Practice Guidelines for the Treatment of Acute Uncomplicated Cystitis and Pyelonephritis in Women (Reflecting resistance concerns)

Frequently Asked Questions (FAQ)

Common questions about Ciprinol SR (FAQ)


Q: Will Ciprinol SR cure my high blood pressure permanently?

Ciprinol SR is indicated for managing high blood pressure and is part of a long-term treatment plan. It is not considered a permanent cure for this chronic condition.

The medication's specific use, including the recommended method for taking it, should be reviewed directly with a healthcare professional or by reviewing the official product label.

Do not stop or change any existing medication regimen without first consulting your healthcare provider.


Q: Can I drink alcohol while taking Ciprinol SR?

Alcohol consumption while taking Ciprinol SR may increase the risk of certain side effects, such as dizziness or low blood pressure.

Because both alcohol and Ciprinol SR can potentially lower blood pressure, combining them may lead to additive effects.

It is best to discuss alcohol use with a healthcare professional to understand the level of caution recommended for your individual health situation.


Q: What should I do if I miss a dose?

Patients should follow the specific directions provided by their prescribing healthcare professional or the patient information leaflet regarding missed doses.

Generally, if a dose is missed, instructions will clarify whether to take it as soon as remembered or to skip it and resume the regular schedule.

Do not take two doses at the same time to make up for a missed dose, as this could lead to an excessive amount of medication in the body. Consistent dosing is generally important for maintaining the medication's intended effect.

How should Ciprinol SR be stored and disposed of?

Storage and Disposal of Ciprinol SR

Ciprinol SR (Ciprofloxacin Extended-Release Tablets) must be stored at a controlled room temperature of 25 C (77 F), with permitted temperature excursions between 15 C and 30 C (59 F and 86 F). The medication must be stored and dispensed in a tight container. As a safety precaution, it is mandatory to keep the product out of the reach of children.

Disposal Instructions

Unused or expired tablets should be disposed of according to official regulatory guidance. The preferred disposal method is utilizing a drug take-back program. If a take-back program is not available, the tablets should be mixed with an unappealing substance, placed in a sealed container, and then discarded in the household trash.

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

Available in countries:

Equivalent of Ciprinol SR found in:

A-Z Index: