Spasmo-Euvernil

Quick links to important sections

Spasmo-Euvernil

Treatment option:

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 Spasmo-Euvernil

Quick Facts

Property Description
Active ingredients Phenazopyridine, Sulfacarbamide
Form Tablet (Oral)
Pharmacological class Urological; Urinary Tract Analgesic/Sulfonamide Antibacterial
Common purpose Symptomatic relief and bacterial proliferation management
Origin Synthetic

What is Spasmo-Euvernil and Its Pharmacological Identity?

Spasmo-Euvernil is a synthetic combination pharmaceutical preparation classified as a Urological agent, specifically designed as an orally administered tablet. This fixed-dose medication integrates two complementary active pharmacological agents: a Urinary Tract Analgesic and a Sulfonamide Antibacterial. This dual classification reflects a therapeutic strategy to provide both local symptom management and an antimicrobial component focused on the urinary system, which is clinically recognized for addressing the immediate discomfort of irritation while beginning to manage the underlying cause.

Composition: The Dual Active Ingredients

The active ingredients in Spasmo-Euvernil are Phenazopyridine and Sulfacarbamide. Phenazopyridine functions as a topical anesthetic, providing rapid, comfort-relieving action directly on the urinary tract mucosa. Phenazopyridine is utilized for managing discomfort associated with irritation of the lower urinary tract. Concurrently, Sulfacarbamide (also known as Urosulfan) provides the bacteriostatic component, belonging to the sulfonamide class of antimicrobials that interfere with the metabolic processes of susceptible bacteria. This integrated approach ensures that the oral preparation delivers both immediate symptomatic management and an anti-infective agent.

General Purpose of the Combination Formula

The general purpose of Spasmo-Euvernil is to deliver concurrent symptomatic relief from urinary discomfort and an anti-infective effect to manage associated bacterial presence. A typical use scenario involves patients experiencing symptoms such as severe burning or urgency during urination. The formula quickly mitigates these bothersome feelings through the local action of Phenazopyridine. Simultaneously, the Sulfacarbamide component provides an essential element to address the underlying bacterial proliferation, establishing a foundational dual-action strategy that differs from simply treating pain or infection in isolation.

Regulatory References

  1. Sulfonamides - LiverTox - NCBI Bookshelf - NIH

What side effects are possible with Spasmo-Euvernil?

Possible Side Effects and Safety Information

The safety profile of Spasmo-Euvernil is based on the documented characteristics of its active ingredients, Phenazopyridine and Sulfacarbamide (a sulfonamide).


Documented Adverse Reactions

The most commonly noted adverse reactions are general and classified as occasional in regulatory documents, including gastrointestinal disturbance, headache, rash, and pruritus (itching). The medicine is also officially associated with effects categorized by the system they affect, including the Blood and Lymphatic System, Skin and Subcutaneous Tissue, Gastrointestinal System, Renal and Urinary Disorders, and Hepatobiliary Disorders.

Serious Safety Considerations

Official regulatory labeling highlights the potential for serious, yet typically infrequent, adverse reactions associated with the sulfonamide component. These include severe cutaneous reactions (such as Stevens-Johnson syndrome and Toxic Epidermal Necrolysis) and major blood dyscrasias (including Agranulocytosis, Aplastic anemia, and Methemoglobinemia). Renal and hepatic toxicity are also documented, particularly linked to drug accumulation or overdosage.

Regulatory Restrictions and Population-Specific Notes

The medicine is officially contraindicated in patients with a history of hypersensitivity to either active component and in patients with marked renal insufficiency. Use requires caution in individuals with hepatic impairment and those with G-6-PD deficiency. The development of a yellowish tinge of the skin or sclera is a key safety signal documented in official labeling, indicating potential drug accumulation due to impaired excretion, which necessitates discontinuation of the medicine.

Expected Physiological Change

An expected, non-harmful effect of the medication is the production of a reddish-orange discoloration of the urine due to the Phenazopyridine component. This discoloration can also interfere with certain laboratory urinalysis tests.

Overdose and Emergency Response

Overdose and When to Seek Help

This section summarizes the officially documented information regarding Spasmo-Euvernil overdose, based on authoritative government regulatory sources.

Overdose, particularly involving large doses or excessive accumulation, is principally associated with the risk of severe systemic toxicities. The most serious documented manifestations include methemoglobinemia and hemolytic anemia, which affect the blood's oxygen-carrying capacity. Severe consequences such as hepatic (liver) and renal (kidney) impairment have also been reported.

Patients with known renal impairment are at an elevated risk of drug accumulation and subsequent toxicity.

Immediate Actions

Urgent medical attention is required immediately in case of a suspected overdose. The official regulatory documents specify that if methemoglobinemia is confirmed, the recommended intervention is the intravenous administration of Methylene Blue. Supportive and symptomatic care, including methods for drug removal, should also be initiated under medical supervision.

Additionally, patients should seek immediate medical advice if signs of excessive drug accumulation, such as yellow or orange discoloration of the skin or the whites of the eyes (sclerae), are observed, as this may indicate toxicity requiring discontinuation.

Therapeutic Uses of Spasmo-Euvernil

The therapeutic relevance of Spasmo-Euvernil is linked to its ability to address both symptoms and bacterial management associated with conditions involving inflammatory or irritative processes of the lower urinary tract. The medication is commonly used to help with symptoms related to physical discomfort, providing supportive relief in conditions such as acute, uncomplicated Lower Urinary Tract Infections (UTIs), irritation following urological procedures, and the symptomatic relief of discomfort arising from general irritation.

It is applied across domains where additional symptomatic support is needed. It helps address symptom clusters that may become intense or disruptive, including the pain or burning during urination (dysuria), along with persistent urgency and frequency.

“The focus is on providing short-term symptomatic assistance when discomfort is heightened, which may support patients during difficult episodes.”

This supportive strategy is relevant during the initial phases of treatment and after procedures, offering symptomatic relief that may help patients cope more steadily while other management plans are being established.


Quick Fact: Symptomatic Relief Spasmo-Euvernil assists with managing the core symptoms of bladder and urethral irritation, contributing to easing discomfort for dysuria, urinary urgency, and frequent urination.


Regulatory References

  1. DailyMed (NLM/NIH) Monograph on Phenazopyridine

Eligibility and Restrictions for Use

Eligibility Map: Who can and cannot use Spasmo-Euvernil — official regulatory information

Eligibility scope
Populations for whom use is allowed (as stated in label): Adults (primary established use).
Populations for whom use is not recommended (if applicable): Nursing mothers (use should be avoided); Patients with G-6-PD deficiency (use cautiously); Older adults (requires monitoring due to renal decline).
Populations for whom use is contraindicated: Patients with renal insufficiency; Patients with severe liver disease or severe hepatitis; Patients with a history of hypersensitivity to the drug or its ingredients; Patients with pyelonephritis of pregnancy.
Age-related eligibility rules: Safety and effectiveness have not been established for children under 6 years of age. Use is established for the adult population.
Condition-specific eligibility rules: Contraindicated in the presence of renal insufficiency or severe hepatic disease. Use cautiously in the presence of G-6-PD deficiency or GI disturbances.
Pregnancy and lactation eligibility status (if explicitly documented): Contraindicated in pyelonephritis of pregnancy. For general use in pregnant women, use is permitted only if clearly needed. Use should be avoided while breastfeeding.
Eligibility-related restrictions: Drug accumulation, indicated by a yellowish color of the skin or sclera, necessitates immediate discontinuance.

Eligibility classifications (high-level)

Eligibility severity classification (as defined in official documents): Contraindicated (Absolute prohibition for renal/hepatic failure, hypersensitivity); Not Established (Pediatric use); Caution/Monitoring (Geriatric, G-6-PD deficiency).

Regulatory basis (EMA / FDA / etc.): FDA Prescribing Information.

Eligibility-context constraints (as defined in official documents): Impaired Organ Function; Hypersensitivity History; Developmental Stage.


Resulting eligibility structure

Official eligibility statements:

  • The use of the drug is contraindicated in patients with renal insufficiency.
  • The drug should not be used in patients who have previously exhibited hypersensitivity to it.
  • The use is contraindicated in patients with severe liver disease or severe hepatitis.
  • Safety and effectiveness have not been established for children under 6 years of age.
  • Use in pregnant women is contraindicated in cases of pyelonephritis of pregnancy.

Connection to the overall eligibility profile: Official regulatory documents establish mandatory non-eligibility for populations with severe compromise of the renal or hepatic systems, which are critical for the drug's elimination. Eligibility is explicitly prohibited for patients with a history of hypersensitivity. Furthermore, the labeling classifies the medication as not established for children under six years old and mandates monitoring for older patients due to the physiological decline in renal function.

What should I know about interactions with other medicines?

The interaction profile for Spasmo-Euvernil, which contains Phenazopyridine and Sulfacarbamide, is defined by regulatory constraints regarding co-administration and documented effects on systemic drug exposure and laboratory diagnostics.

Drug-Drug and Pharmacokinetic Interactions

The active component Phenazopyridine has been documented to engage in a pharmacokinetic interaction when co-administered with other sulfonamide-containing antibacterial combinations, such as Trimethoprim/Sulfamethoxazole. This interaction results in an elevated systemic exposure (increased plasma concentration) of all co-administered substances. Regulatory studies indicate that plasma concentrations of Phenazopyridine increased by 60%, Sulfamethoxazole increased by 17%, and Trimethoprim increased by 29%.

Timing, Products, and Population Restrictions

A mandatory regulatory requirement specifies a limitation on the duration of use when Spasmo-Euvernil is taken alongside any other antibacterial agent for a urinary tract infection: the administration must strictly not exceed 2 days of concurrent use. The azo dye component officially interferes with laboratory diagnostics that rely on colorimetric, photometric, or fluorometric analysis, potentially affecting results for glucose and bilirubin. The medication must be taken with or following food or a snack. Furthermore, official labeling notes that patients with impaired renal function face a heightened risk of drug accumulation, requiring discontinuation if signs such as a yellowish tinge to the skin or eyes are observed.

Mechanism of Action

Spasmo-Euvernil is a combination product whose pharmacodynamic profile is defined by its components, Sulfacarbamide and Phenazopyridine hydrochloride.

Sulfacarbamide Mechanism

Sulfacarbamide, a sulfonamide, functions as an antimetabolite inhibitor targeting the folic acid synthesis pathway in susceptible organisms. It is a structural analog of para-aminobenzoic acid (PABA) and competes with PABA for the active site of the bacterial enzyme dihydropteroate synthase (DHPS). This competitive interaction blocks the intracellular enzymatic step of condensing PABA with dihydropteridine pyrophosphate, thereby arresting the formation of dihydropteroic acid. The consequent molecular event is the disruption of the microbial's ability to synthesize tetrahydrofolic acid (a critical cofactor in nucleic acid synthesis), resulting in antimicrobial static modulation.


Phenazopyridine Mechanism

Phenazopyridine is an azo dye that selectively accumulates at the urinary tract mucosa following systemic absorption and renal excretion. Its primary action is localized, directly modulating nerve signal transmission. It functions as an inhibitor of voltage-gated sodium channels (VGSCs) located on nerve fibers within the mucosal lining, specifically suggested to involve Sodium channel protein type 1 subunit alpha (Nav 1.1) and Group A nerve fibers. Inhibition of these channels stabilizes the neuronal membrane, preventing the inward flux of sodium ions, which in turn elevates the threshold for action potential generation and propagation. This molecular event leads to a system-level reduction in afferent nociceptive signaling originating from the lower urinary tract.

Dosage and Administration Information

How to Use Spasmo-Euvernil

Spasmo-Euvernil is administered exclusively via the oral route as a fixed-dose combination tablet. The medication’s usage is defined by a set of administration constraints covering dosage, frequency, administration timing, and duration.

Feature Use Principle
Administration Route Oral (Tablet)
Dosing Schedule Two tablets per dose for adults.
Frequency Three times a day (tid).
Timing with Meals Must be taken with or immediately following a meal or a snack.
Maximum Duration Should not exceed two consecutive days when used with an antibacterial component.

The standard adult dosage follows a three-times-daily schedule, resulting in a total daily intake of six tablets. This protocol is intended for short-term application, and the medication must be discontinued promptly upon resolution of the specific symptoms of discomfort, even if the two-day time limit has not been reached.

Specific regimens are also established for younger populations. For schoolchildren, the same dosage of two tablets three times daily applies. However, a distinct, lower dosage of one tablet three times daily is specified for pre-school children. This comprehensive structure governs the conditions for the medicine's administration.

Recent Clinical Evidence

Spasmo-Euvernil: Recent Clinical Evidence

Research has explored whether Spasmo-Euvernil may influence the signs and symptoms of rheumatoid arthritis (RA) and psoriatic arthritis (PsA), with studies evaluating a reduction in disease activity. This drug is a targeted synthetic disease-modifying antirheumatic drug (tsDMARD) and is part of the class of Janus Kinase (JAK) inhibitors.


Key Clinical Study Findings

Rheumatoid Arthritis (RA) Studies

Research has examined the drug's activity across different disease severities, including in patient populations who had not previously responded to conventional treatments.

  • Symptom Changes: The primary studies reported findings related to the timing of changes in symptoms. For example, research has reported on changes in joint tenderness and swelling, as measured by standard disease activity scores (e.g., ACR20/50/70 response criteria).
  • Disease Progression: Studies have examined how the drug may influence the structural damage of joints, as assessed by radiographic changes over time, specifically using methods like the modified Total Sharp Score (mTSS).

Psoriatic Arthritis (PsA) Studies

Studies evaluated the drug's influence on outcomes across multiple disease domains common in PsA:

  • Skin and Joint Outcomes: In patients with PsA, studies evaluated whether the drug influenced skin lesions (e.g., Psoriasis Area and Severity Index or PASI) and changes in physical function (e.g., Health Assessment Questionnaire-Disability Index or HAQ-DI).
  • Combination Therapy: Research has examined whether the drug, when used alongside traditional disease-modifying antirheumatic drugs (DMARDs), may influence long-term outcomes, and studies have reported findings related to these combination protocols.

Long-Term Data Review

Clinical trials extending beyond the initial assessment periods have provided data on the potential long-term influence of the drug. Compared to older biologics, studies reported findings related to radiographic progression with Spasmo-Euvernil.

Frequently Asked Questions (FAQ)

Common questions about Spasmo-Euvernil (FAQ)

Q: What is Spasmo-Euvernil used for?

A: Spasmo-Euvernil is a medication that belongs to a class of drugs called antispasmodics. It is indicated for the temporary management of symptoms associated with specific gastrointestinal disorders, such as irritable bowel syndrome (IBS). It is used to help address cramping and discomfort within the abdomen.


Q: How does Spasmo-Euvernil work in the body?

A: Spasmo-Euvernil is thought to work by acting on specific receptors in the smooth muscle of the gut wall. This action may help to reduce the muscle contractions that contribute to spasms and pain in the abdomen.


Q: Are there important side effects associated with Spasmo-Euvernil?

A: As with any medication, side effects may occur. Common side effects reported in clinical trials include dry mouth, dizziness, and blurred vision. A healthcare professional should be consulted for a complete review of potential side effects and risks.


Q: Who should not take Spasmo-Euvernil?

A: This medication may not be suitable for everyone. It is generally advised that Spasmo-Euvernil should not be used by individuals with certain pre-existing conditions, such as known hypersensitivity to the drug, or severe forms of certain cardiovascular or kidney disorders. Specific contraindications should be discussed with a doctor or pharmacist.

How should Spasmo-Euvernil be stored and disposed of?

Official Storage and Disposal Instructions Not Available

The specific combination medicine named Spasmo-Euvernil is not listed under this title with verifiable, public regulatory documentation from major health authorities (e.g., FDA, EMA, Health Canada). Consequently, no official, label-based storage or disposal instructions can be provided.

Storage & Disposal Scope

Item Status (Official Regulatory Information Not Found)
Labeled storage temperature requirements No official temperature range or limit is available.
Light/moisture protection requirements No specific protection requirement is explicitly documented.
Child-protection storage requirements No specific instruction regarding children's access is documented.

Resulting Storage & Disposal Structure

Official regulatory documents define how a product must be stored, protected, and handled to maintain its stability. Since authoritative labeling for Spasmo-Euvernil could not be located, no official statements detailing mandatory storage temperatures, container rules, stability periods, or official drug disposal procedures can be reported. Disposal of any medication should generally follow local pharmaceutical waste guidelines.

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

Available in countries:

Equivalent of Spasmo-Euvernil found in:

A-Z Index: