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Спазган

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Спазган

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Treatment option: Dysmenorrhea

Medically reviewed

Marina Burgos

Last updated on 10/01/2026

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.

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Overview of Спазган

Property Description
Active ingredient Metamizole sodium, Pitofenone hydrochloride, Fenpiverinium bromide
Form Tablet, Solution for injection (Ampoule)
Pharmacological class Non-narcotic Analgesic in Combination with Spasmolytics
Common use Relief of pain associated with smooth muscle spasm
Origin Synthetic

Classification and Identity: What Type of Medicine is Спазган?

Спазган is defined as a specialized combined analgesic-antispasmodic means, a multicomponent drug formulated to address both pain and involuntary muscle contraction. It is generally classified within the broad pharmacological class of non-narcotic analgesics used in combination with spasmolytics. This synthetic formulation is available in several key pharmaceutical preparations, including the tablet for oral administration and the sterile solution for injection in an ampoule, allowing for either intramuscular or intravenous route of administration. The combined action is clinically recognized for its ability to provide comprehensive relief, differentiating it from single-mechanism analgesics.

Core Composition: The Triple-Action Active Ingredients

The efficacy of Спазган relies on the synergy of three distinct active ingredients: Metamizole sodium, Pitofenone hydrochloride, and Fenpiverinium bromide. Metamizole sodium, a pyrazolone derivative, delivers the primary analgesic effect and exhibits a strong antipyretic effect.

The unique aspect of Спазган lies in its dual spasmolytic means: Pitofenone provides a direct musculotropic effect for muscle relaxation, while Fenpiverinium bromide, an anticholinergic compound, uses an M-cholinoblocking effect to relieve smooth muscle spasm. This particular three-component composition is also found in popular analogues such as Baralgetas and Spasmalgon.

General Purpose: Why is Спазган a Combination Product?

Спазган functions as a combination product because its general therapeutic objective is the rapid and comprehensive counteraction of severe pain syndrome that is directly caused by smooth muscle spasm. A typical use scenario involves conditions where pain is exacerbated by involuntary cramping, such as colic or severe dysmenorrhea. The drug's integrated structure, combining an analgesic with two different types of spasmolytic means, allows it to address both the pain signaling and the muscle hyper-contraction simultaneously, providing a key advantage over single-ingredient pain relievers.

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What side effects are possible with Спазган?

Possible Side Effects and Safety Information

The safety profile for Metamizole-containing products, such as Spasgan, is characterized by the risk of rare, but potentially life-threatening, adverse reactions, as documented in official government regulatory sources where the medicine is authorized.

Serious and Clinically Significant Adverse Reactions

The most serious documented risks are not dose-dependent and include:

  • Agranulocytosis: A severe, potentially fatal reduction in white blood cells (a blood disorder). Regulatory guidance mandates immediate cessation of the medicine upon the first sign of symptoms, such as an unexplained fever or sore throat.
  • Anaphylactic Shock: Severe, immediate, and potentially fatal allergic reactions.
  • Severe Skin Reactions: Life-threatening bullous skin reactions, including Stevens-Johnson Syndrome (SJS) and Toxic Epidermal Necrolysis (TEN).
  • Acute Renal Failure

Frequency-Classified Adverse Reactions

Adverse reactions are classified by frequency based on official regulatory labeling:

Classification Examples of Reactions
Rare (1 in 1,000 to 1 in 10,000) Leukopenia (low white blood cell count), Allergic/Anaphylactoid reactions
Very Rare (Fewer than 1 in 10,000) Agranulocytosis, Thrombocytopenia, SJS/TEN, Acute Renal Failure
Uncommon (1 in 100 to 1 in 1,000) Transient hypotension, Skin rash

Safety-Related Restrictions

Official regulatory documents place strict restrictions on use:

  • Contraindications: The medicine is explicitly contraindicated (should not be used) in patients with known hypersensitivity to the components, bone marrow depression, specific blood disorders, and during the third trimester of pregnancy.
  • Pregnancy and Breastfeeding: Use is contraindicated in the final trimester of pregnancy and during breastfeeding, due to the documented risk to the infant.
  • Required Action: Treatment must be stopped immediately and permanently upon the first appearance of signs suggestive of agranulocytosis (e.g., fever, chills, sore throat), as this reaction can occur at any time.
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Overdose and Emergency Response

Overdose and When to Seek Help

The official regulatory documents define the overdose profile of this combination product by listing specific, documented clinical manifestations and severe potential outcomes. Immediate medical attention must be sought if an overdose is suspected, as this situation carries a risk of life-threatening events.

Overdose presentations, as formally documented, may include central nervous system effects such as dizziness, tinnitus, somnolence, vertigo, or seizures. Gastrointestinal signs like nausea and vomiting are also listed manifestations.

The most serious outcomes described in regulatory labeling involve acute systemic collapse and organ toxicity. These include states of circulatory shock, pronounced hypotension and tachycardia, and acute damage to the excretory and hepatic systems, such as acute renal failure and acute liver failure.

Because no specific antidote is known, the defined management protocol relies on supportive measures. These include procedures to limit absorption, such as gastric lavage or the use of activated charcoal, and general symptomatic and supportive treatment. Due to the possibility of delayed symptom onset, the official profile notes that prolonged medical observation is often required following an overdose incident. This oversight is necessary for monitoring for the potential development of severe organ toxicity.

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Therapeutic Uses of Спазган

Quick Facts: Spazgan Therapeutic Domains

  • May be considered for the management of symptoms associated with intestinal colic.
  • Used in therapeutic protocols addressing pain and spasms of the genitourinary system, such as renal colic.
  • An option for the symptomatic relief of pain linked to biliary tract disorders, including biliary colic.
  • Supports the alleviation of discomfort that may occur with certain smooth muscle contractions.

What Спазган Treats: Main Uses and Benefits

Спазган (Spazgan) is a prescription medication primarily intended for the symptomatic management of pain associated with smooth muscle spasms. It is intended for short-term use in adults and acts as an agent to help relieve acute instances of discomfort.

The medication is utilized in the therapeutic domain of the gastrointestinal tract, where it may be considered for the alleviation of symptoms related to intestinal colic and certain manifestations of irritable bowel syndrome. Additionally, this compound is employed to address pain and spasms originating in the genitourinary system, such as in cases of renal colic or painful menstrual cramping (dysmenorrhea). Its applications also extend to providing relief for discomfort associated with the biliary tract, including episodes of biliary colic and cholecystitis.

Clinical guidelines indicate the compound is part of the established therapeutic options for severe, acute smooth muscle pain. As a prescription agent, it is integrated into comprehensive pain management plans to support relief from various types of colic and spasms.

Regulatory References

  1. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8306558/
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Eligibility and Restrictions for Use

Eligibility Map: Who Can and Cannot Use Спазган — Official Regulatory Information

This section outlines the official population eligibility and non-eligibility status for Спазган, based strictly on government regulatory documents.

Category Official Regulatory Status
Populations for whom use is allowed Adults and adolescents from 15 years of age (based on harmonized regulatory approvals).
Populations for whom use is not recommended Children under 15 years of age. Breastfeeding women (lactation). The elderly population.
Populations for whom use is contraindicated Patients with a history of metamizole-induced agranulocytosis or pre-existing bone marrow dysfunction. Patients with hypersensitivity to any component (Metamizole or pyrazolone derivatives). Patients in the third trimester of pregnancy. Patients with gastro-intestinal obstruction or megacolon.
Category Regulatory Status Definition
Age-related eligibility rules Use is formally not recommended for individuals under 15 years of age as stated in product information.
Condition-specific eligibility rules Use requires caution in patients with impaired renal function and impaired hepatic function.
Pregnancy and lactation eligibility status Contraindicated in the third trimester of pregnancy. Not recommended during lactation due to high excretion into breast milk.

Resulting Eligibility Structure

Official regulatory documents establish three tiers of use: absolute prohibition, conditional restriction, and eligible use. Absolute prohibition applies to patients with a history of severe blood disorders or those in late-stage pregnancy. Conditional use, often requiring caution, applies to populations with organ impairment (e.g., renal/hepatic function) or those in early pregnancy. Eligible use is generally defined for adults and adolescents from 15 years of age.

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What should I know about interactions with other medicines?

Interactions with other medicines and products

Спазган is a combination product containing metamizole, pitofenone, and fenpiverinium, and its interaction profile is primarily driven by metamizole (a pyrazolone derivative).

Contraindicated Combinations

  • Concomitant use with other pyrazolone derivatives or Non-Steroidal Anti-inflammatory Drugs (NSAIDs) should be avoided due to an increased risk of severe adverse reactions.

Clinically Significant Interactions

  • Metamizole can reduce the plasma concentration of Ciclosporin (Cyclosporine), potentially requiring therapeutic drug monitoring and dose adjustment of the immunosuppressant. This is thought to be due to induction of hepatic enzymes.
  • The drug may enhance the effect of oral anticoagulants (e.g., Warfarin) and oral antidiabetic agents by displacing them from plasma protein binding sites.
  • Co-administration with Methotrexate may increase the risk of toxicity, especially hematological side effects, necessitating close monitoring.
  • Enzyme inducers (e.g., Barbiturates, Phenylbutazone) may diminish the therapeutic effect of metamizole by accelerating its metabolism.
  • The combination with Chlorpromazine or other phenothiazine derivatives may lead to severe hypothermia.
  • The effects of tricyclic antidepressants and combined oral contraceptives may be potentiated.
  • Alcohol (Ethanol) consumption must be avoided, as the components of Спазган may mutually potentiate its effects.
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Mechanism of Action

Spazgan exerts its effects through the combined action of its components, primarily targeting two distinct physiological domains: prostanoid synthesis and smooth muscle contractility.### Targeting Prostanoid Synthesis for Systemic EffectsThe component Metamizole modulates specific signaling responses by inhibiting select enzyme isoforms, particularly cyclooxygenase, involved in the biosynthesis of prostanoids within the central nervous system. Prostanoids are lipid mediators that influence subsequent physiological responses. This mechanistic cascade results in an altered local concentration of these mediators, which influences subsequent systemic effects. ### Modulating Smooth Muscle Activity via Muscarinic ReceptorsThe combination of Pitofenone and Fenpiverinium bromide directly affects smooth muscle contraction. Pitofenone acts as a spasmolytic by engaging mechanisms that inhibit muscular contraction, primarily through competitive binding to muscarinic acetylcholine receptors on smooth muscle cells. Fenpiverinium enhances this action via its quaternary ammonium structure, which further modulates cholinergic signaling input to the smooth muscle, affecting contractile force. The overall consequence is a decrease in smooth muscle tonicity.

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Dosage and Administration Information

How to Use Спазган: Official Administration Guidelines

This section outlines the protocols for the use of this combined analgesic-antispasmodic. The medication is available for administration via two primary pathways: the oral route (tablet) and the parenteral route, which includes both intramuscular (IM) and intravenous (IV) injection.

Administration Scope Official Instruction
Dosing Schedule For adults, the typical single dose is 1 to 2 tablets, or 2 mL to 5 mL when administered by injection. The total daily intake must not exceed the maximum limits of 6 tablets or 10 mL of the solution for injection.
Frequency Pattern Doses are taken multiple times daily, typically up to 2 to 3 times per day, with successive doses separated by a minimum interval of 6 hours.
Timing & Preparation Oral tablets should be taken with water after eating. The solution for injection must be visually inspected for clarity before administration.
Population Rules Dosage reduction is required for adults with impaired renal or hepatic function.
Special Conditions Intravenous administration requires the patient to be placed in a supine position and the injection must be conducted slowly, often over a period of five to eight minutes, under direct medical supervision.

The usage protocol is defined by two distinct administration pathways—oral and parenteral—each with defined single and maximum daily limits. This framework dictates that the medicine is reserved for acute, short-term application. Adherence to procedural details, such as the required slow infusion rate for intravenous administration and mandated dose reductions for organ impairment, supports the standardized application of the treatment.

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Recent Clinical Evidence

Research evidence / Overview of studies for Спазган (Spazgan)

Evidence for use in Acute Renal Colic Pain

The research conducted for the primary analgesic component in Спазган, Metamizole, often involves studies on acute, severe pain. This type of research is relevant in trials assessing short-term or episodic symptom patterns in conditions associated with acute or disruptive episodes, such as renal colic.

Studies conducted during periods of increased symptom activity in adult patients often take the form of single-dose, short-term Randomized Controlled Trials (RCTs). These research examined outcomes related to physical discomfort by monitoring changes in patient-reported pain intensity scores. The primary outcome examined in these trials is the change in pain intensity. Data from some studies reported measured pain changes when contrasted with other analgesics used for acute renal colic pain in the study settings.

Evidence for use in Other Spasm-Related Conditions

For other conditions characterized by fluctuating or episodic manifestations involving smooth muscle spasm—such as biliary colic, intestinal colic, and painful menstrual cramping (dysmenorrhea)—the research base is generally less direct for the specific triple combination drug.

Studies have explored the effects of Metamizole monotherapy in these contexts. Clinical support for these indications often relies on the documented actions of the individual components (analgesic and spasmolytic). Dedicated comparative randomized controlled trials for the specific triple combination in indications such as biliary colic or severe dysmenorrhea are not frequently found in major systematic reviews.

What is Still Uncertain About the Research Base

While research describes patterns related to short-term pain relief, several limitations and uncertainties exist in the evidence base. Comparative evidence is lacking for the specific triple-component formulation (Metamizole/Pitofenone/Fenpiverinium) when weighed against Metamizole used alone. Available data reported mixed findings on whether the addition of spasmolytics provides a consistent, measurable difference in acute pain relief over the analgesic component alone. Furthermore, the overall evidence base is often limited by factors such as design constraints and modest sample sizes.

Key Studies & References The Antispasmodic/Analgesic Combination Fenpiverinium Bromide-Pitofenone-Metamizole Sodium in the Treatment of Acute Spasmodic Pain: A Review of the Evidence

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Frequently Asked Questions (FAQ)

Common questions about Спазган (FAQ)


Q: What is the onset of action and how long do the effects of a single dose of Спазган last?

Official information regarding the main analgesic component, Metamizole, indicates rapid absorption. It typically reaches its maximum concentration in the blood within approximately 1.4 to 2.0 hours after an oral dose.

Pharmacokinetic studies indicate that the half-life of the active metabolite, which describes the duration it remains in the system, is reported to be in the range of 2.6 to 3.5 hours.


Q: Why is it recommended to take the oral tablets after eating?

The official administration guidelines state that oral tablets are to be taken with water after eating.

While the instructions are specific, this practice is commonly recommended for certain types of medication to help minimize the potential for general gastrointestinal discomfort or irritation.


Q: How quickly do I need to stop taking the drug if I develop a fever or a rash?

The official safety information requires that treatment be discontinued immediately and permanently upon the first sign of a severe adverse reaction.

This includes the sudden onset of an unexplained fever, chills, sore throat, or the development of a severe skin rash or lesions. Seeking urgent medical assistance is mandated in these situations.


Q: If I miss a dose of Спазган, what should I do?

General regulatory guidance for scheduled medications often suggests that if a dose is missed, the medication should be taken as soon as it is remembered.

However, if the time is almost right for the next scheduled dose, the missed dose should be skipped entirely. It is officially advised not to take a double dose to compensate for a missed dose.


Q: What should I do if I suspect a drug overdose?

In the event a drug overdose is suspected, official regulatory protocol requires that emergency medical attention be sought immediately.

This involves contacting a local poison control center or seeking urgent help at a healthcare facility.


Q: Are there any known long-term side effects if I use Спазган for an extended period?

This medicine is officially reserved for acute, short-term application.

Because of its intended use, there is limited data on the safety profile for prolonged treatment. If use extends beyond short-term application, close medical supervision and monitoring are required, according to regulatory documents.


Q: What are the signs or symptoms of agranulocytosis that should prompt me to stop taking Спазган?

Official warnings state that the medicine should be immediately discontinued if signs of a serious blood disorder, like agranulocytosis, appear.

Symptoms listed in regulatory guidance include an unexplained fever, chills, sore throat, or the presence of painful sores on the moist inner linings of the body, such as in the mouth or throat.

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How should Спазган be stored and disposed of?

How to Store and Dispose of Спазган?

This information is based on official regulatory requirements for the combination product containing Metamizole sodium, Pitofenone hydrochloride, and Fenpiverinium bromide.


Official Storage Conditions

The medicine must be stored at a temperature below 25°C. To ensure product integrity, it is mandatory to keep the tablets in the original container and protect from light and moisture.

Child Safety and Stability

It is required to keep the medicine out of reach of children. The product must not be used after the expiry date printed on the carton and blister.

Disposal Requirements

Do not dispose of unused or expired medicine in wastewater or with household waste. Consult a pharmacist for instructions on how to properly discard the medication, as these specialized measures are required to help protect the environment.

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

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