Srivasso

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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.

Overview of Srivasso

Quick Facts

Property Description
Active ingredient Tiotropium Bromide
Form Inhalation Powder (within a hard capsule)
Pharmacological class Long-Acting Muscarinic Antagonist (LAMA)
Common use Maintenance Bronchodilator Treatment
Origin Synthetic Quaternary Ammonium Compound

What is Srivasso and What Type of Medicine is It?

Srivasso is the commercial name for the prescription-only medicine whose active component is Tiotropium Bromide. This medication is classified as a potent, long-acting bronchodilator, and specifically belongs to the Long-Acting Muscarinic Antagonist (LAMA) class. This pharmacological classification is clinically recognized for providing sustained control over airway musculature.

Tiotropium Bromide is a synthetic compound that functions as an anticholinergic agent. Its chemical structure is designed to maintain therapeutic activity for up to 24 hours, which is a differentiating factor that allows Srivasso to be used for once-daily administration as a foundation for continuous maintenance treatment.

Composition and Form: Inhalation Powder for Targeted Action

Srivasso is provided as a single-active ingredient product in the unique dosage form of an inhalation powder contained within a hard capsule. The composition includes the active substance, Tiotropium, blended with the primary inert carrier, lactose monohydrate. This specific preparation is delivered exclusively by oral inhalation using a dedicated device.

The route of oral inhalation is essential, as it ensures the medicine reaches the bronchial tubes directly. This targeted delivery method maximizes local efficacy and minimizes the body's overall exposure to the compound. The medicine's formulation is supported by pharmacological studies confirming its ability to selectively block M3 muscarinic receptors, which is vital for achieving its therapeutic effect.

Srivasso's General Purpose: A Maintenance Bronchodilator

The fundamental purpose of Srivasso is to provide long-term support by promoting the relaxation of muscles around the air passages. The core action involves selectively inhibiting the constricting effects of the neurotransmitter acetylcholine. By blocking this signal, the medicine achieves sustained bronchodilation, helping patients sustain easier breathing over the long term as part of a daily maintenance treatment plan.

What side effects are possible with Srivasso?

Possible Side Effects and Safety Information

Srivasso (Tiotropium Bromide) has an official safety profile structured by frequency and system-organ classification, consistent with government regulatory documents. The most commonly reported adverse effect in regulatory data is dry mouth, which is usually mild and may lessen with continued therapy.


Frequency-Classified Adverse Reactions

Adverse reactions are formally grouped based on their occurrence in clinical trials:

Classification Examples of Adverse Reactions (Source-Derived)
Common Dry mouth, dizziness, headache, pharyngitis, cough, sinusitis.
Uncommon Palpitations, blurred vision, dysphonia, pruritus (itching), urinary retention, insomnia.
Rare Atrial fibrillation, supraventricular tachycardia, glaucoma, angioedema (swelling), intestinal obstruction.

Serious Adverse Reactions and Safety Constraints

The official labeling explicitly notes specific, serious adverse reactions and safety limitations due to the drug's anticholinergic class:

  • Paradoxical Bronchospasm: A severe, sudden worsening of breathing that may occur immediately after inhalation.
  • Glaucoma and Urinary Retention: The medication may precipitate or worsen narrow-angle glaucoma or urinary retention, particularly in patients with conditions like prostatic hyperplasia.
  • Immediate Hypersensitivity: Severe allergic reactions, including angioedema (swelling of the lips, tongue, or throat) and anaphylaxis, are documented.

Srivasso is not indicated for the immediate relief of acute episodes of bronchospasm and is restricted to long-term maintenance treatment. Patients with moderate to severe renal impairment (CLCR le 50 mL/min) require close monitoring for potential anticholinergic side effects. The product is also contraindicated in patients with a known severe hypersensitivity to milk proteins.

Overdose and Emergency Response

Overdose and When to Seek Help

An overdose of Srivasso (Tiotropium Bromide) is formally documented in regulatory labeling as an exaggeration of the drug’s known anticholinergic effects. This high level of exposure can lead to a severe clinical presentation affecting several body systems. The most common signs of overdose, as stated in official prescribing information, include significantly marked dry mouth, blurred vision or visual accommodation disorder, constipation, and urinary retention.

A primary serious manifestation affecting the cardiovascular system is the risk of marked tachycardia (a rapid increase in heart rate). Excessive use can result in clinically significant cardiovascular effects. In all cases of suspected overdose, immediate action is required. Regulatory guidance mandates that individuals seek immediate medical attention or contact emergency services for clinical evaluation and supervision.

Overdose Management and Monitoring Official Regulatory Statement
Antidote No specific antidote is known.
Treatment Management is symptomatic and supportive.
Monitoring Monitoring of cardiac function is necessary due to the risk of tachycardia.
Specific Population Patients with moderate to severe renal impairment should be closely monitored for anticholinergic effects.

This section reflects the strictly label-based information provided by government drug authorities regarding overdose events and mandated patient response.

Therapeutic Uses of Srivasso

What Srivasso Treats: Main Uses and Benefits

Srivasso (Tiotropium Bromide) is generally used as a foundational, long-acting medication for the long-term control and maintenance of chronic breathing disorders. It is commonly used for managing symptoms of chronic obstructive pulmonary disease (COPD). It is important to note that it is not used for the immediate relief of acute attacks but is a daily controller intended for persistent symptom management. The medication is applied across therapeutic domains relevant to chronic airflow restriction.

The medication is primarily indicated for the long-term maintenance treatment of COPD, including conditions like chronic bronchitis and emphysema, and as an add-on controller for symptomatic asthma. The therapeutic benefit is sustained, long-acting support, which contributes to easing the symptoms related to chronic airflow restriction, such as shortness of breath (dyspnea) and wheezing. The continuous support helps address symptom clusters that may become disruptive, assisting with the overall symptom load and supporting continuous breathing stability.

Quick Fact: Relief for Persistent Symptoms
Symptoms Addressed Chronic Airflow Limitation, Dyspnea, Wheezing
Common Clinical Context Long-term daily maintenance (not acute rescue)
Main Support Provided Sustained support for breathing stability

Eligibility and Restrictions for Use

Eligibility Map: Who can and cannot use Srivasso — Official Regulatory Information

Category Official Regulatory Statement
Populations for whom use is allowed Adults (age 18 and older) for Chronic Obstructive Pulmonary Disease (COPD) maintenance. Children and adolescents ge 6 years of age for asthma maintenance (specific formulations).
Populations for whom use is contraindicated Patients with a known hypersensitivity to tiotropium, atropine, or its derivatives, such as ipratropium, or any component of the product.
Age-related eligibility rules COPD: Safety and effectiveness are not established for patients under 18 years. Asthma: Safety and effectiveness are not established for patients below 6 years of age.
Condition-specific eligibility rules Patients with moderate to severe renal impairment (creatinine clearance le 50 mL/min) should be monitored closely. Hepatic impairment does not require a dosage adjustment.
Eligibility-related restrictions Must be used with caution in patients with narrow-angle glaucoma or prostatic hyperplasia / bladder-neck obstruction. Not indicated for the initial treatment of acute bronchospasm.
Pregnancy and lactation eligibility status Not recommended during pregnancy or lactation unless the potential benefit justifies the potential risk, due to limited human data.

Resulting Eligibility Structure

The official regulatory profile defines eligibility by contraindicating the medicine for individuals with known allergies to the active substance or its derivatives. It strictly restricts the medicine's application to chronic maintenance treatment, and it is explicitly not indicated for acute breathing episodes. Caution is mandated for patients with pre-existing conditions such as glaucoma, urinary retention issues, and reduced kidney function, establishing precise boundaries for use.

What should I know about interactions with other medicines?

Interactions with other medicines and products

The interaction profile for Srivasso (Tiotropium Bromide) is primarily defined by the additive pharmacodynamic risk associated with its classification as a Long-Acting Muscarinic Antagonist.

Pharmacodynamic and Contraindicated Interactions

The most significant interaction documented in regulatory sources involves other medicines with anticholinergic activity. Co-administration with other anticholinergic-containing drugs may result in an additive pharmacodynamic effect, which increases the overall risk of anticholinergic-related side effects. Official labeling therefore advises that the co-administration of Srivasso with other anticholinergic medications should be avoided.

Pharmacokinetic and Population Considerations

The potential for clinically significant pharmacokinetic drug-drug interactions is considered minimal. Tiotropium is only minimally metabolized by the Cytochrome P450 system (CYP2D6, CYP3A4), and these metabolic pathways do not typically necessitate dose adjustments or restrictions with co-administered medicines.

However, a population-specific interaction consideration exists for patients with moderate to severe renal impairment (creatinine clearance less than 60 mL/min). In this population, reduced drug clearance leads to increased systemic exposure of Tiotropium, which may in turn intensify the risks associated with the additive anticholinergic pharmacodynamic interaction. No specific interactions with food, alcohol, or herbal products are formally documented due to the medicine’s oral inhalation route, and no mandatory timing separation rules are established.

Mechanism of Action

How Srivasso Works: Mechanism of Action

Competitive Blockade of Muscarinic Receptors

Srivasso acts as a competitive antagonist of muscarinic acetylcholine receptors ( M3) located on the smooth muscle of the airways. This action directly interrupts the signal carried by the neurotransmitter Acetylcholine from the parasympathetic nervous system, which is the primary neural drive for muscle constriction.


Sustained Suppression of Airway Tone

The core mechanism triggers a cascade where receptor blockade prevents the activation of the cellular signaling pathway that would normally cause a rapid increase in intracellular calcium ions ( Ca^2+). This suppression limits the ability of the muscle fibers to shorten, resulting in the sustained relaxation of the bronchial smooth muscle.


Kinetic Selectivity for 24-Hour Duration

A unique feature of this mechanism is its kinetic selectivity, meaning the molecule separates very slowly from the post-synaptic M3 receptor. This remarkably slow dissociation rate ensures that the anticholinergic blockade is maintained over a full 24-hour cycle. This sustained action is expressed physiologically as bronchodilation.

Dosage and Administration Information

Srivasso (Tiotropium Bromide) is used exclusively as a long-term, continuous daily maintenance therapy and is not indicated for the immediate relief of acute symptoms. Its usage protocol is strictly defined to ensure consistent administration over time.

The approved route of administration is oral inhalation only. The medicine is available as an inhalation powder (18 mcg) or an inhalation solution (5 mcg or 2.5 mcg) and must be administered using a dedicated device. The full dose is taken once daily (QD), ideally at the same time each day, and patients must not exceed one full dose in 24 hours. When using the capsule form, the capsule must not be swallowed but inhaled, typically requiring two separate inhalations to ensure all the powder is delivered.

The standard adult maintenance dose for Chronic Obstructive Pulmonary Disease (COPD) is 18 mcg (powder) or 5 mcg (solution) once daily. For the asthma indication, a lower dose of 2.5 mcg once daily is used, which is also the approved regimen for pediatric patients six years of age and older.

If a dose is missed, it should be taken as soon as possible, but patients must not take two doses at the same time. No dosage adjustment is required for older adults or those with hepatic impairment. However, individuals with moderate to severe renal impairment (creatinine clearance ≤ 50 mL/min) should be closely monitored during use.

Recent Clinical Evidence

Research Evidence / Overview of Studies for Srivasso (Tiotropium Bromide)

This section provides a summary of the clinical research conducted for Srivasso (Tiotropium Bromide), focusing on the types of studies, the outcomes they monitored, and the areas where research is still developing. Research provides context but not individual predictions; findings describe group patterns observed in studies and do not determine whether an individual will respond similarly.

Evidence for use in Chronic Obstructive Pulmonary Disease (COPD)

The research base for Srivasso in COPD includes multiple large-scale Randomized Controlled Trials (RCTs) and detailed Systematic Reviews. These studies involved thousands of adults who had been diagnosed with established COPD, covering a wide range of disease severities.

Researchers monitored several key outcomes related to functional capacity and chronic symptom management. Studies examined measurements of lung function, such as the forced expiratory volume in one second ( FEV1). Research explored clinical status by monitoring outcomes related to episodic or acute changes, such as the frequency of COPD exacerbations (flare-ups). Studies also tracked changes in dyspnea (shortness of breath) and overall health-related quality of life.

Studies examined patterns observed in the frequency of exacerbations and in patient-reported outcomes. Researchers reported measurements of sustained lung function. Long-term effects were explored in trials lasting up to four years, which reported observational data on all-cause mortality; this endpoint was studied to address questions raised during early research.

Evidence for use as Add-On Controller Therapy for Symptomatic Asthma

Research exploring the use of Srivasso in asthma primarily focuses on its role as an add-on controller for patients whose symptoms are not fully managed by standard therapy. The evidence is derived from RCTs against placebo, with subsequent Systematic Reviews summarizing the collected data.

Studies monitored patterns in severe asthma exacerbation rates during the study period, particularly in adolescents and children (6–17 years of age). Functional measures like changes in trough FEV1 were also evaluated. The research so far describes that the role of Srivasso was evaluated as an add-on therapy, meaning the data available provides limited information for its use as a stand-alone, first-line treatment for asthma.

Evidence Gaps and Areas of Regulatory Uncertainty

Despite the extensive research, certain questions remain. Evidence is limited on the long-term effects of Srivasso on specific non-bronchodilator outcomes, such as its influence on airway inflammation. Furthermore, while data exists for children, the follow-up durations were limited in some pediatric studies, and the overall volume of evidence is less extensive for the very young compared to the adult COPD population. Research is ongoing to provide additional context for long-term outcomes in these groups.

Frequently Asked Questions (FAQ)

Common questions about Srivasso (FAQ)


Q: Is Srivasso considered a 'rescue' inhaler, or is it for maintenance treatment?

A: Official information states that Srivasso is exclusively for long-term, continuous daily maintenance treatment. It is explicitly not indicated for the immediate relief of sudden, acute breathing problems or episodes of bronchospasm. A separate short-acting inhaler is typically used for rescue when needed, as Srivasso does not fill this role.

Q: What specific conditions or diseases is Srivasso primarily used to treat?

A: Srivasso is approved for the long-term, once-daily maintenance treatment of bronchospasm associated with Chronic Obstructive Pulmonary Disease (COPD), and for reducing COPD flare-ups. It is also approved for the maintenance treatment of asthma.

Q: How quickly should I expect to feel the full breathing benefits of Srivasso after starting it?

A: Srivasso is a long-term maintenance medicine designed to provide a sustained effect over 24 hours. While the medicine is absorbed quickly after inhalation, the full benefit in managing chronic breathing symptoms may develop gradually over the course of days or weeks with continuous daily use.

Q: Does Srivasso treat COPD, asthma, or both, and are the uses different?

A: Srivasso is approved for the maintenance treatment of both COPD and asthma. The uses are different in that a higher dose is typically approved for COPD maintenance compared to the dose approved for asthma maintenance.

Q: What is the difference between Srivasso and a short-acting bronchodilator like albuterol?

A: Srivasso is a long-term maintenance bronchodilator intended for daily, continuous use to keep airways open. In contrast, short-acting bronchodilators (like albuterol) are rescue medicines used only for sudden and immediate relief of acute breathing problems.

Q: What happens if someone accidentally swallows the Srivasso capsule instead of inhaling the powder?

A: The Srivasso capsule must not be swallowed, as the intended therapeutic effects on the lungs will not be fully achieved. Regulatory information suggests that acute intoxication from swallowing the medicine is unlikely because the compound is generally poorly absorbed when ingested orally.

Q: What are the potential effects of suddenly stopping Srivasso after using it regularly?

A: Srivasso works by providing sustained bronchodilation for a full 24 hours. Suddenly stopping the daily medicine would remove this continuous maintenance effect, which could potentially lead to a worsening of chronic breathing symptoms over time.

Q: Does Srivasso help to prevent exacerbations or 'flare-ups' of COPD?

A: Yes, Srivasso is indicated to reduce the risk of COPD exacerbations (flare-ups). It is important to know that a sudden worsening of breathing, called paradoxical bronchospasm, may occur immediately after inhalation and requires treatment with a rescue inhaler.

Q: Can Srivasso cause problems with vision, such as blurred vision or red eyes?

A: Official information states that blurred vision is a reported side effect of Srivasso. Patients are generally advised to be alert for signs of a condition called acute narrow-angle glaucoma, which can include symptoms like eye pain, blurred vision, or seeing halos, often along with red eyes.

Q: Why do some people experience hoarseness or a fungal infection in the mouth after using Srivasso?

A: Hoarseness (dysphonia) is a known side effect reported with Srivasso. While hoarseness is a reported side effect, the official safety reports do not explicitly list fungal infection of the mouth (thrush). However, some inhaled medicines may lead to inflammation of the mouth (stomatitis) or tongue (glossitis).

Q: Are there any food, drink, or supplements that should be avoided when taking Srivasso?

A: Regulatory documents indicate there are no specific interactions documented with food, alcohol, or herbal supplements due to the medicine's inhalation route. The main restriction is to avoid taking Srivasso at the same time as other medications that have anticholinergic properties.

Q: Does Srivasso interact with common over-the-counter cold and flu medications?

A: The most significant drug interaction risk is with other medications that have anticholinergic activity. Patients should be aware that the ingredients of OTC cold or flu medicines may contain anticholinergic components, and co-administration with Srivasso should be avoided in such cases.

Q: How does Srivasso impact exercise tolerance and overall quality of life for COPD patients?

A: Clinical studies for Srivasso measured outcomes such as health-related quality of life and changes in the feeling of shortness of breath (dyspnea). These measurements reflect improvements in how patients feel and their ability to perform daily activities, which can include exercise.

Q: Are there any reports of Srivasso causing a cough that doesn't produce mucus?

A: Cough is listed as a common side effect reported in clinical trials. The regulatory label, however, does not specify the exact nature of the cough—whether it is typically dry or productive (producing mucus).

Q: Is it possible for Srivasso to cause symptoms like dizziness or headache?

A: Yes, regulatory documents list both dizziness and headache as common adverse reactions that were reported by patients during clinical trials.

Q: Why is a dry mouth side effect associated with the type of drug Srivasso is?

A: Srivasso is an anticholinergic drug, meaning it blocks the action of a natural body chemical called acetylcholine. Because this action also affects the glands that produce saliva, it can suppress their secretions, which is the underlying cause of the common side effect of dry mouth.

Q: What research supports the use of Srivasso in asthma?

A: Research supports Srivasso’s role as an add-on controller therapy for asthma patients whose symptoms are not fully managed by standard treatments. Studies tracked outcomes like lung function and the rate of severe asthma flare-ups in both adolescents and children aged 6 and older.

Q: How was the effectiveness of Srivasso measured in clinical trials?

A: The effectiveness of Srivasso was measured primarily through objective assessments of lung function, specifically tracking the forced expiratory volume in one second (known as the FEV1). Studies also monitored clinical outcomes such as the frequency of COPD exacerbations.

Q: Are there any concerns about Srivasso affecting my ability to drive or operate machinery?

A: Since side effects like dizziness and blurred vision may occur, official patient information advises caution when performing activities such as driving a car or operating machinery.

Q: Is it normal to still need a rescue inhaler when taking Srivasso daily?

A: Yes, it is normal and expected. Srivasso is solely for long-term maintenance and is not a rescue medicine. It is generally expected that a short-acting inhaled bronchodilator will still be needed as required for sudden, acute symptoms of shortness of breath.

Q: Why do some people report an initial feeling of a racing heart or agitation after starting Srivasso?

A: A faster heartbeat (tachycardia) and feelings of a racing heart (palpitations) are reported side effects. Insomnia (difficulty sleeping) is also reported and may contribute to a feeling of restlessness or agitation when starting the medicine.

Q: What precautions should be taken if Srivasso powder accidentally gets into the eyes?

A: Care must be taken to avoid allowing the inhalation powder to enter the eyes, as this can cause blurring of vision and pupil dilation. If this happens, or if symptoms like eye pain or red eyes develop, a healthcare professional should be consulted immediately.

Q: Is there a maximum number of years someone can safely use Srivasso?

A: Regulatory information indicates that clinical trials reviewed for the safety and effectiveness of Srivasso included long-term studies that lasted up to four years in adult COPD patients.

Q: What is the relationship between Srivasso use and the risk of developing dental caries (cavities)?

A: A very common side effect of Srivasso is dry mouth. While the medicine's label does not directly address dental caries, having a persistent dry mouth can be a risk factor for oral health issues.

How should Srivasso be stored and disposed of?

Storage and Disposal Requirements

The storage of Srivasso (tiotropium bromide) inhalation capsules is strictly controlled to maintain the stability of the dry powder. The medicine must not be stored above 25 C and must not be frozen.

Packaging and Stability

Capsules must remain in their original sealed blister packaging and be protected from moisture. A capsule should be removed only immediately before use. The approved shelf-life for the unopened product is 24 months. After the blister strip is first opened, the capsules must be used within 9 days.

Disposal

The medicine must be kept out of the sight and reach of children. Any unused product, or the dedicated inhaler device (which must be discarded 12 months after first use), should be disposed of in accordance with local regulatory requirements for pharmaceutical waste.

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

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