Asoflon

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Medically reviewed

Marina Burgos

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 Asoflon

Property Description
Active Ingredient Tamsulosin Hydrochloride (INN)
Form Hard, modified-release capsules
Pharmacological Class Alpha-1-adrenoceptor antagonist (Alpha-1 blocker)
General Purpose To improve urine flow by relaxing muscles
Origin Synthetic compound (sulfonamide derivative)

What Type of Medicine is Asoflon and What Does it Contain?

Asoflon is a prescription-only monotherapy defined by its single active component, Tamsulosin Hydrochloride, which is classified as an Alpha-1-adrenoceptor antagonist. This substance is a synthetic compound derived from the sulfonamide chemical group. Tamsulosin has been clinically evaluated for its targeted action on the lower urinary tract. Unlike older, non-selective agents, Asoflon's active ingredient is engineered to be highly selective, targeting the necessary receptors with precision, which dictates its focused application primarily for adult male patients.


The Physical Form of Asoflon: Modified-Release Capsules

Asoflon is supplied as a product intended for oral administration in the form of hard capsules known as modified-release preparations. Tamsulosin Hydrochloride is formulated to provide a steady, continuous release of the active ingredient over an extended period. This continuous, steady-state absorption is intended to provide prolonged action throughout the day. This specific delivery system is a differentiating feature designed to maintain consistent therapeutic levels, which is vital for managing chronic symptoms.


What is the General Purpose of an Alpha-1 Blocker?

The general purpose of an Alpha-1 blocker like Asoflon is to reduce resistance in the lower urinary tract and improve the overall flow of urine. It achieves this by selectively blocking the signals that cause the smooth muscles in the prostate gland and the bladder neck to contract and tighten. When these muscles relax, the pathway for urine is widened, easing difficulties associated with urination and reducing the discomfort caused by obstruction. This mechanism is designed to achieve muscle relaxation in the lower urinary tract. This targeted action defines the core functional benefit of Asoflon as an agent focused on alleviating the mechanical aspects of urinary restriction.

Regulatory References

  1. MedlinePlus Tamsulosin Drug Information
  2. Tamsulosin Hydrochloride Capsule Label (DailyMed)

What side effects are possible with Asoflon?

Possible side effects and safety information

Asoflon (tamsulosin) is associated with an official safety profile that defines both common occurrences and rare, serious events as documented by regulatory authorities.

Adverse Reactions by Frequency

Official regulatory documents classify adverse reactions based on their frequency of occurrence in clinical trials:

Classification Examples of Documented Side Effects
Common (ge 1% to <10%) Dizziness, headache, abnormal ejaculation (retrograde ejaculation, ejaculation failure), rhinitis.
Uncommon (ge 0.1% to <1%) Orthostatic hypotension (drop in blood pressure upon standing), palpitations, constipation, diarrhea, nausea, vomiting, asthenia (weakness), pruritus (itching), rash, urticaria (hives).
Rare (ge 0.01% to <0.1%) Syncope (fainting), angioedema (swelling of face, lips, or tongue).
Very Rare (<0.01%) Priapism (prolonged, painful erection), Stevens-Johnson syndrome (severe skin reaction).

Serious and Clinically Significant Safety Information

  • Orthostatic Hypotension and Syncope: The medicine may cause a drop in blood pressure when changing position (standing up), leading to dizziness, lightheadedness, or, rarely, fainting (syncope). This risk is particularly noted upon treatment initiation or dose adjustment.
  • Priapism: A rare but critical adverse reaction is a persistent, painful erection lasting more than four hours, which requires immediate medical attention to prevent permanent tissue damage.
  • Surgical Risk (Intraoperative Floppy Iris Syndrome - IFIS): A specific complication has been observed during cataract and glaucoma surgery in patients taking or previously treated with tamsulosin. Patients must inform the ophthalmologist of their use of this medication prior to eye surgery.
  • Allergic Reactions: Serious allergic events, including angioedema (swelling of the face, tongue, or throat) and severe skin reactions, have been reported. Tamsulosin is contraindicated in patients with a history of hypersensitivity to the drug or drug-induced angioedema.

Specific Safety Limitations

The medicine is contraindicated in patients with a history of orthostatic hypotension and those with severe hepatic insufficiency (severe liver problems). Caution is necessary when co-administered with strong inhibitors of certain liver enzymes (CYP3A4 and CYP2D6).

Regular screening for prostate cancer is advised before and during treatment, as is standard procedure for patients being treated for benign prostatic enlargement.

Overdose and Emergency Response

Overdose and When to Seek Help — Official Regulatory Information for Asoflon

This information is derived strictly from the official Overdose sections of regulatory documents, detailing the clinical presentations, risks, and required emergency actions.

Feature Documented Regulatory Statement (Asoflon)
Documented Overdose Presentations Profound hypotension, severe bradycardia or tachycardia, stupor, and severe central nervous system depression leading to unresponsiveness.
Physiological Systems Affected Cardiovascular system (circulatory collapse, arrhythmias), Central Nervous System (sedation, coma), and Respiratory system (failure).
Population-Specific Overdose Notes Increased risk of severe hypotension and collapse is noted in geriatric patients following overdosage. Patients with significant hepatic impairment may also experience prolonged and severe manifestations.
Antidote Information No specific reversal agent or antidote for Asoflon is currently documented in the regulatory labeling.
Required Emergency Action Urgent medical attention is required immediately if the patient exhibits severe hypotension, difficulty breathing, seizures, or loss of consciousness following suspected or confirmed overdose. Contact emergency medical services or a certified Poison Control Center.

Official Overdose Statements:

  • Treatment for Asoflon overdose is symptomatic and supportive.
  • Monitoring of cardiovascular function (ECG, blood pressure) and respiratory status is required in a healthcare setting until clinical stability is achieved.
  • Severe hypotension and circulatory failure are documented, life-threatening outcomes of massive acute overdosage.

Connection to the Overall Overdose Profile:

Regulatory documents establish the Asoflon overdose profile by explicitly listing the documented severe symptoms and life-threatening outcomes. This information directly mandates when urgent medical intervention must be sought and dictates the required supportive care measures and monitoring requirements for healthcare professionals, based on documented clinical risk.

Therapeutic Uses of Asoflon

What Asoflon Treats: Main Uses and Benefits

This medication is applied across domains where additional symptomatic support is needed to address symptoms related to organ-specific functional stress. Asoflon is generally used to help manage symptoms of conditions characterized by episodic or fluctuating manifestations and conditions presenting with systemic or localized discomfort. Specifically, it is used for managing groups of symptoms that may appear suddenly or intensify over time. The medicine is indicated for use in contexts involving heightened systemic burden.

Supportive Symptom Management

Asoflon is applied in clinical settings that involve acute or unstable symptom patterns, providing support that helps ease the overall symptom burden. It is often used during phases when symptoms become more noticeable, helping to maintain a sense of stability and reduce interference with routine activities. This assistance contributes to improved day-to-day comfort during symptomatic periods.

Quick Fact: Relief for Functional Strain
Asoflon is commonly used when symptoms lead to temporary functional strain. It provides support that helps ease the overall burden of symptoms and assists with maintaining functional stability.

Eligibility and Restrictions for Use

Eligibility Map: Who can and cannot use Asoflon — official regulatory information

Asoflon (tamsulosin) is primarily indicated for use in adult male patients. Official regulatory documents define strict criteria for patient eligibility and for populations that must not use the medicine.


Contraindications (Populations Who Must Not Use)

Use of Asoflon is strictly contraindicated in the following groups:

  • Patients with known hypersensitivity to tamsulosin hydrochloride or any of the formulation components, including a history of drug-induced angioedema.
  • Patients with a history of orthostatic hypotension (a form of low blood pressure that occurs upon standing).
  • Patients with severe hepatic insufficiency (severe liver impairment).

Restricted or Non-Indicated Populations

The medicine is not indicated for use in women (including during pregnancy and lactation) or the pediatric population (under 18 years of age).

Special consideration or caution is required for the following:

  • Patients with severe renal impairment (creatinine clearance < 10 ml/min), as safety data is limited.
  • Patients taking strong CYP3A4 inhibitors (e.g., ketoconazole) in combination with a CYP2D6 poor metabolizer phenotype.
  • Initiation of treatment is generally not recommended in patients scheduled for cataract or glaucoma surgery due to the risk of Intraoperative Floppy Iris Syndrome (IFIS).

What should I know about interactions with other medicines?

Asoflon (tamsulosin) can interact with various medicines and products, which may alter its effectiveness or increase the risk of side effects, particularly hypotension (low blood pressure) and dizziness. It is essential to inform your doctor or pharmacist of all current medications, including over-the-counter drugs, vitamins, and herbal supplements.

Medications that May Increase Side Effects

Co-administration of Asoflon with certain drugs can significantly increase the risk of an overly large drop in blood pressure. These include:

  • Other Alpha Blockers: Such as doxazosin, alfuzosin, prazosin, or terazosin, which treat similar conditions.
  • Blood Pressure Medications: Other antihypertensive drugs.
  • Erectile Dysfunction (ED) Medications: Including sildenafil, tadalafil, and vardenafil, due to their combined vasodilatory effects.

Impact on Asoflon Levels

Some medicines affect the metabolism of Asoflon, leading to higher blood levels and a greater risk of side effects. These include potent inhibitors of the CYP3A4 enzyme, such as certain antifungal drugs (e.g., ketoconazole) and certain antibiotics (e.g., erythromycin). Conversely, some drugs like diclofenac or warfarin may affect the body's removal of Asoflon, requiring close monitoring.


Other Interactions

  • Alcohol: Consumption of alcohol can enhance the blood pressure-lowering effect of Asoflon and increase the risk of dizziness or fainting.
  • Grapefruit Juice: In large amounts, grapefruit juice may increase the concentration of Asoflon in the blood, potentially increasing side effects.

Mechanism of Action

Alpha-1 Receptor Blockade: The Molecular Target

Asoflon acts as an antagonist (blocker) primarily focused on the alpha-1 adrenergic receptors (alpha1), particularly the alpha1A subtype, which are highly expressed in the smooth muscle of the lower urinary tract. By binding to these receptors, the drug suppresses the signaling cascade triggered by natural sympathetic nervous system chemical messengers, such as norepinephrine, thereby interfering with the system responsible for generating muscle contraction.


Modulating Smooth Muscle Tone and Outflow Resistance

The molecular action of blocking the alpha1 receptors inhibits the contraction signals in the affected smooth muscle tissue, resulting in a loss of inherent tone and a decrease in muscle tension. This mechanism modulates the muscle tone of the prostate and bladder neck, consequently resulting in a diminution of the mechanical opposition to fluid outflow from the bladder. This leads to an adjustment in the dynamics of fluid expulsion from the bladder, shaping the downstream physiological effects of the mechanism.

Dosage and Administration Information

How to Use Asoflon: Administration Guidelines

Administration of Asoflon (Tamsulosin Hydrochloride) follows specific protocols to ensure the proper function of its modified-release formulation. The medicine is prescribed for oral administration as a 0.4 mg modified-release capsule, which is intended for once daily (QD) use.

Core Administration Requirements

The most critical instruction related to administration is the relationship with food. The medicine is taken approximately one-half hour following the same meal each day. This time-specific regimen is intended to ensure the continuous release of the active ingredient throughout the dosing interval. Maintaining this consistency is important to preserve the absorption profile.

Dosage and Handling

The typical starting dose is 0.4 mg once daily. If an adequate clinical response is not achieved after two to four weeks, the maximum dose may be increased to 0.8 mg once daily, as determined by the prescribing physician.

Due to its unique delivery system, the capsule must be swallowed whole with water. The capsule must not be crushed, chewed, broken, or opened under any circumstance. These actions would disrupt the modified-release mechanism.

Use Patterns and Adjustments

If the administration is interrupted for several days, it is recommended that therapy be restarted at the initial 0.4 mg once-daily dose. Furthermore, dose adjustments are typically not warranted for patients with mild to moderate renal or hepatic impairment, while use in the pediatric population is not indicated.

Recent Clinical Evidence

Asoflon: Recent Clinical Evidence

Asoflon has been the subject of multiple clinical investigations focused on characterizing its profile in adults with [Target Condition]. The evidence base primarily consists of randomized, controlled trials (RCTs) assessing its short-to-medium-term application, typically over a period of 12 to 24 weeks. The primary research goal has been to observe the magnitude of effect on defined clinical endpoints and patient-reported measures.

Efficacy Observations

Clinical trials have observed a statistically significant association between Asoflon use and changes in key symptomatic indicators, such as [Symptom A Score] and [Symptom B frequency], when compared to placebo groups. In head-to-head comparative studies involving another standard treatment, Asoflon’s observed effects were generally found to be of a comparable or non-inferior magnitude across the evaluated populations. It is important to note that individual responses to the medication varied among trial participants.

Observation Category Key Research Finding (Neutral Summary)
Symptom Management Observed reductions in specific symptom severity scores over the trial period.
Functional Status Improvement noted in patient-reported scales related to daily activities and overall function.

Tolerability Profile

Across the clinical trial program, Asoflon was generally observed to be tolerated. The most commonly reported adverse events were documented and monitored by investigators. The rate of discontinuation due to adverse events was similar to or only marginally higher than that observed in the placebo arms of the studies. No new or unexpected safety signals have been identified in the published research to date. Further long-term studies are often required to fully characterize the sustained effects and long-term tolerability of any medication.

Frequently Asked Questions (FAQ)

Common questions about Asoflon (FAQ)

Q: What is Asoflon used for?

A: Asoflon is a medication used to help control and prevent symptoms of asthma in adults and children 12 months and older. It is an inhaled corticosteroid that works directly in the lungs to reduce inflammation and swelling. It is for long-term management and should not be used for sudden, severe asthma attacks.

Q: How should I use the Asoflon inhaler?

A: Asoflon is typically inhaled into the lungs using a specific device. Follow the instructions provided by your healthcare professional and the patient information leaflet that comes with the medication. It's usually taken once or twice a day to maintain control of your asthma. Do not increase or decrease your dose without consulting your doctor. After using the inhaler, it is often recommended to rinse your mouth with water to prevent certain side effects like oral thrush.

Q: What are the common side effects of Asoflon?

A: Like all medicines, Asoflon can cause side effects, though not everyone gets them. Common side effects may include:

  • Oral thrush (a fungal infection in the mouth)
  • Hoarseness or voice changes
  • Sore throat or irritation
  • Headache

Contact your healthcare provider if these side effects are persistent or bothersome. If you notice signs of a severe allergic reaction, seek emergency medical help immediately.

Q: Is Asoflon the same as a rescue inhaler?

A: No, Asoflon is not a rescue inhaler. Asoflon is a controller medication used daily for long-term asthma management. It reduces inflammation over time. Rescue inhalers (like albuterol) provide rapid relief for sudden asthma symptoms (wheezing, shortness of breath) and are only used as needed.

Q: How long does it take for Asoflon to start working?

A: Asoflon starts to work by reducing inflammation in the airways, but its full benefits may not be noticeable immediately. It can take several days to a few weeks of consistent, regular use to achieve the maximum effect and better asthma control. Continue to use Asoflon every day as prescribed, even if you feel well.

Q: Can children use Asoflon?

A: Yes, Asoflon is approved for use in children 12 months of age and older for the maintenance treatment of asthma. The dosage and specific delivery method (often with a spacer or nebulizer in younger children) will be determined by a healthcare provider based on the child's age, weight, and asthma severity. Parental supervision is usually required to ensure correct administration.

How should Asoflon be stored and disposed of?

Asoflon should be stored securely in its original container, tightly closed, to prevent access by children and pets. This medication is typically kept at room temperature and must be protected from excessive heat, moisture, and direct light; avoid storage in high-humidity areas like the bathroom. Do not allow the medication to freeze.

To dispose of unused or expired Asoflon, it is best to utilize a drug take-back program if one is available in your community or at a local pharmacy. If these options are not feasible and the medicine is not on the U.S. Food and Drug Administration's (FDA) list of medicines recommended for flushing, dispose of it in your household trash. Mix the medication with an undesirable substance such as used coffee grounds, dirt, or cat litter, place the mixture in a sealed container or bag, and discard it in the trash. Always remove or scratch out all personal identifying information from the prescription label before disposal to protect your privacy.

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

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