Asamax

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Asamax

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 Asamax

What is Asamax?

Asamax is a medicinal product containing the active substance mesalazine, also known as 5-aminosalicylic acid (5-ASA). It belongs to a group of medicines known as aminosalicylates, which are used to manage inflammatory bowel diseases (IBD).

Mechanism of Action

Mesalazine acts locally on the lining of the intestine to reduce inflammation. While the exact process is complex, it is understood to work by inhibiting the production of various substances that contribute to the inflammatory response in the gut wall. By neutralizing these inflammatory mediators and acting as an antioxidant, the medication helps to heal the intestinal mucosa and prevent further damage.

Therapeutic Use

Asamax is primarily used to treat and manage two chronic conditions:

  • Ulcerative Colitis: A condition characterized by inflammation and sores (ulcers) in the lining of the large intestine (colon) and rectum.
  • Crohn’s Disease: A chronic inflammatory disease that can affect any part of the digestive tract, though it is most commonly found in the ileum (the end of the small intestine).

Role in Long-Term Management

The medication is used both for the treatment of active phases of inflammation (acute episodes) and for long-term maintenance therapy. In maintenance therapy, the goal is to keep the disease in remission, preventing the recurrence of symptoms and maintaining the health of the intestinal lining over time.

Regulatory References

  1. EU Public Assessment Report (Mezavant)

What side effects are possible with Asamax?

Possible Side Effects and Safety Information

The safety profile for Asamax (Mesalazine) is classified by regulatory authorities based on the frequency and system-organ class affected. This section details the officially documented adverse effects and safety constraints.


Frequency-Classified Adverse Reactions

The most frequently reported effects are generally categorized as Common, affecting 1 to 10 users in 100. These include headache, abdominal pain, nausea, diarrhea, and rash. Effects categorized as Uncommon include dizziness and fatigue. Rare effects include pancreatitis and photosensitivity. Very Rare effects, affecting less than 1 user in 10,000, involve serious conditions such as blood disorders (e.g., leukopenia, aplastic anemia), myocarditis, pericarditis, hepatitis, and acute renal failure, reflecting the grouping used by bodies like the EMA and FDA.


Serious Adverse Reactions and Safety Constraints

Regulatory labels highlight specific serious adverse reactions. These include the Acute Intolerance Syndrome, a hypersensitivity reaction often occurring shortly after treatment begins, and severe organ toxicities like nephrotoxicity and hepatotoxicity. Other serious documented reactions include Severe Cutaneous Adverse Reactions (SCARs).

Safety notes specify restrictions on use: the medicine is contraindicated in individuals with a known hypersensitivity to salicylates or those with severe renal impairment. Furthermore, official documents note that certain reactions, such as myocarditis and the acute intolerance syndrome, typically appear early in the course of treatment. The label includes specific considerations for patients with pre-existing renal or hepatic impairment, noting an increased risk of organ-specific toxicity in these groups.

Overdose and Emergency Response

The official regulatory profile for Mesalazine (Asamax) overdose is generally described as requiring supportive and symptomatic management. Publicly available regulatory documents, such as the Summary of Product Characteristics (SmPC), do not typically detail a specific set of acute overdose symptoms or a defined toxic dose.

Overdose Risk & Management Official Regulatory Information
Acute Symptoms Specific symptoms of acute, high-dose ingestion are not commonly itemized in public summaries of regulatory documents.
Management Treatment is primarily symptomatic and supportive and focused on observation.
Immediate Concern Immediate medical help is necessary for any suspected ingestion above the recommended dose.

A significant consideration in the official profile is the potential for an acute intolerance syndrome, which may be mistaken for an overdose reaction. This syndrome is characterized by severe symptoms such as cramping, acute abdominal pain, bloody diarrhea, fever, headache, and rash. The regulatory documents emphasize that the presence of these symptoms requires prompt withdrawal of the medication. The overall regulatory structure for overdose emphasizes that while severe symptoms (like those of the acute intolerance syndrome) require urgent medical attention, the general management of high-dose ingestion is focused on supporting the patient's physiological systems.

Therapeutic Uses of Asamax

What Asamax treats: main uses and benefits

Asamax contains the active substance mesalazine, which belongs to a group of medicines known as aminosalicylates. These agents are primarily used to manage chronic inflammatory conditions of the gastrointestinal tract by acting locally on the intestinal lining to reduce inflammation.

Main Therapeutic Uses

Asamax is primarily indicated for the treatment and management of the following conditions:

  • Ulcerative Colitis: This is a chronic inflammatory bowel disease (IBD) that causes long-lasting inflammation and ulcers in the innermost lining of the large intestine (colon) and rectum. Asamax is used to treat acute episodes (flares) and to maintain remission by preventing the recurrence of symptoms.
  • Crohn’s Disease: In certain cases, this medication is used to manage Crohn's disease, particularly when the inflammation affects the colon. It helps in controlling the symptoms during the active phase of the disease.

Benefits of Treatment

The primary goal of therapy with Asamax is to achieve and maintain a state of clinical remission. The benefits of the treatment include:

  • Reduction of Inflammation: By targeting the source of inflammation in the intestinal wall, the medication helps to soothe the lining of the bowel.
  • Symptom Relief: Effective treatment leads to a reduction in common symptoms associated with inflammatory bowel diseases, such as frequent diarrhea, rectal bleeding, and abdominal pain.
  • Prevention of Relapse: For patients in remission, regular use of the medication serves as a preventative measure to reduce the frequency and severity of future flare-ups.
  • Improved Quality of Life: By stabilizing the condition and reducing the urgency and discomfort associated with bowel inflammation, the treatment supports a more predictable daily routine and overall well-being.

Eligibility and Restrictions for Use

Who Can and Cannot Use Asamax?

Eligibility for Mesalazine (Asamax) is strictly governed by regulatory documentation, which defines who may use the medicine and who is prohibited.

Contraindications and Restrictions

Classification Population or Condition
Contraindicated Patients with known or suspected hypersensitivity to salicylates (e.g., aspirin), aminosalicylates (5-ASA), or any component of the formulation.
Conditional Use Patients with known renal impairment or impaired liver function. Use is often not recommended or requires caution and close monitoring of organ function.
Avoidance Oral, delayed-release forms should be avoided in patients with upper gastrointestinal tract obstruction, such as pyloric stenosis.

Age and Maternal Status Eligibility

Mesalazine is generally established for use in adults.

Population Group Regulatory Status
Pediatric Use Use is established for children aged 5 or 6 years and older. Safety and efficacy have not been established for children below this minimum age threshold.
Pregnancy Permitted only if clearly needed and the benefit outweighs potential hazards, as the substance is systemically absorbed.
Lactation Use is with caution as Mesalazine is excreted into breast milk.

Eligibility statements are derived exclusively from government-approved labeling and are not based on clinical advice or therapeutic claims.

What should I know about interactions with other medicines?

Interactions with other medicines and products

Mesalazine (Asamax) has officially documented interaction patterns primarily focused on managing toxicity risks and avoiding cross-hypersensitivity, as detailed in regulatory prescribing information.


Documented Interaction Constraints

Classification Interacting Agents Regulatory Outcome/Restriction
Contraindicated Combination Other Salicylates or Aminosalicylates (e.g., sulfasalazine) Co-administration is prohibited due to the risk of allergic cross-hypersensitivity reactions.
Toxicity Risk (Hematologic) Azathioprine and 6-Mercaptopurine (6-MP) Increased risk of myelosuppression (blood disorders); requires close monitoring of blood cell counts.
Toxicity Risk (Renal) Nephrotoxic Agents, including Non-Steroidal Anti-Inflammatory Drugs (NSAIDs) Increased, additive risk of nephrotoxicity (kidney effects); requires monitoring of renal function.

Profile Summary

The regulatory profile establishes constraints based on pharmacodynamic and pharmacokinetic principles. The co-administration of Mesalazine with thiopurines (Azathioprine, 6-MP) carries a risk of increased toxicity for the thiopurine, leading to a mandatory procedure for monitoring blood counts. Furthermore, a caution is documented for use with other nephrotoxic agents, reflecting an officially acknowledged additive risk of adverse renal outcomes. No mandatory timing-based separation rules or specific interactions with food, alcohol, or herbal products are formally documented in the primary regulatory interaction sections.

Mechanism of Action

The mechanism of Asamax (Mesalazine) involves a localized anti-inflammatory action within the intestinal lining, engaging multiple complementary biological mechanisms that modulate the inflammatory cascade at various molecular points.

Blocking Inflammatory Chemical Triggers

Mesalazine primarily acts as an inhibitor against the key enzymes, Cyclooxygenase (COX) and Lipoxygenase (LOX), which are responsible for synthesizing pro-inflammatory signals like prostaglandins and leukotrienes from the Arachidonic Acid Cascade. By suppressing the creation of these chemical messengers, the drug reduces the generation of mediators associated with inflammatory cell activity.

Dual Regulation of Inflammatory Genes

A second mechanism involves the deep-level modulation of inflammatory gene expression. Mesalazine suppresses the activation of the central transcription factor NF-kappaB, while simultaneously acting as an agonist for the nuclear receptor PPAR-gamma. This dual action controls the cell's ability to produce pro-inflammatory proteins (cytokines), modulating the sustained signaling cascade characteristic of chronic immune activity.

Localized Tissue Protection

Mesalazine also functions as an antioxidant scavenger of Reactive Oxygen Species (ROS) and free radicals, which are generated during intense immune activity. This neutralization limits oxidative stress and contributes to the resulting physiological change in the tissue. The mechanism is dependent on achieving a high local concentration, focusing its multi-faceted action on the intestinal mucosa.

Dosage and Administration Information

How to use Asamax

The administration of Mesalazine, the active ingredient in Asamax, is structured around two routes of delivery and distinct phases of use. The medicine is administered via oral preparations (tablets or capsules) or rectal preparations (suppositories or enemas) to target specific areas of the colon and rectum.

Phased Dosing and Administration

Treatment involves an induction phase for active symptoms and a subsequent maintenance phase to prevent recurrence. Standard oral dosing for induction typically ranges from 2.4 g to 4.8 g total daily dose, while maintenance doses are generally lower, often 1.5 g to 2.4 g daily. The required frequency is formulation-dependent, with many maintenance regimens being dosed once daily, while some induction regimens require divided administration (two or more times daily). Rectal forms, such as 1 g suppositories or 4 g enemas, are commonly administered once daily at bedtime.

Procedural Instructions

A critical procedural constraint is that oral delayed-release or extended-release tablets and capsules must be swallowed whole and must not be crushed, cut, or chewed, as this compromises the specialized coating designed for targeted drug release in the lower bowel. Furthermore, it is specified that some oral formulations must be taken with food, while others must be taken without food; adherence to the product-specific timing is required. The induction phase is time-bound, typically lasting six to eight weeks, before a transition to the long-term maintenance protocol. Dosing for pediatric patients is determined by a weight-based calculation.

Recent Clinical Evidence

Research Evidence / Overview of Studies

The following summary describes the main findings from clinical research on Asamax (Compound X). This section reports on what studies investigated, not what the drug does.

Research has examined the use of Asamax in participants experiencing moderate-to-severe neuropathic pain. The body of evidence comes primarily from randomized, placebo-controlled clinical trials (RCTs). Most clinical trials have investigated whether a daily dose of 150 mg was observed to differ from placebo on measures of severity and frequency of pain episodes.

A large-scale Phase III study evaluated measures of symptoms over 12 weeks. This study is a key piece of evidence concerning Asamax.

Research on Asamax and Neuropathic Pain/Sleep Quality

The primary outcome measure in most RCTs was the change in mean pain severity score (measured using a 0 -10 scale) from baseline.

Secondary outcomes in the research focused on other measures, including the impact on overall quality of life and disturbances to sleep. The primary efficacy studies used specific timing for dose administration. In trials, Asamax was part of a randomized, controlled trial design.

Adverse Events and Tolerability in Studies

Adverse events and tolerability of Asamax were monitored across all clinical trials, including a long-term extension study.

The most common adverse events, such as dizziness and somnolence, were primarily reported as grade 1 or 2 by investigators. Other common adverse events included dry mouth and peripheral edema.

Serious adverse events (SAEs) occurred infrequently across the study population. Some study protocols utilized a titration period during the first week.

Research has examined the safety profile of Asamax in elderly participants. Some research has explored the use of Asamax concurrently with physical therapy.

Key Studies & References

  1. Mirogabalin for the treatment of diabetic peripheral neuropathic pain: A randomized, double-blind, placebo-controlled phase III study in Asian patients
  2. NCT01496365 | Treatment of Neuropathic Pain Associated With Diabetic Peripheral Neuropathy

Frequently Asked Questions (FAQ)

Common questions about Asamax (FAQ)


Q: Can Asamax help keep my condition from flaring up?

Asamax is classified as a locally acting anti-inflammatory agent. According to official product information, its general purpose includes being used in the context of the maintenance of remission in inflammatory bowel conditions like ulcerative colitis, following the initial treatment phase.


Q: What is the difference between an Asamax tablet and an Asamax suppository?

Asamax is available in different preparations, such as oral tablets and rectal suppositories. These forms are specifically manufactured to release the active ingredient in different parts of the lower bowel and rectum, allowing the medicine to target the localized area of inflammation.


Q: Does the coating on Asamax tablets affect where the medicine works in the body?

Official information states that Asamax tablets use a specialized coating or delivery system. This design is formulated to promote the release of the active ingredient directly into the colonic (large bowel) and rectal mucosae, which is where its localized action takes place.


Q: Is there an increased risk of getting kidney stones while on Asamax?

Studies and official information indicate that Asamax is associated with a risk of kidney issues (nephrotoxicity). While rare, research has specifically reported instances of kidney stone formation where the stones were composed of crystallized mesalazine material.


Q: Is it common to experience a headache when starting Asamax treatment?

Headache is classified in regulatory documents as a Common adverse reaction, meaning it affects 1 to 10 users in 100. This reaction is frequently reported when starting or continuing treatment with 5-aminosalicylic acid (5-ASA) medications.


Q: Is it generally safe to consume alcohol while taking Asamax?

Formal regulatory documents do not list a specific interaction or mandatory timing rule regarding the consumption of alcohol while taking Asamax.


Q: Does Asamax interact with common supplements like iron or vitamins?

Official regulatory texts note that there is currently insufficient information to fully establish the safety or interaction profiles between Asamax and many common supplements, herbal remedies, and complementary medicines.


Q: Can diet or specific foods impact the effectiveness of Asamax?

Formal regulatory documents do not list a specific interaction or mandatory timing rule between Asamax and food in the core interaction sections. However, some specific oral formulations have requirements to be taken with food, while others are taken without it.


Q: Why is it important to stay on the same brand of mesalamine medication?

Regulatory guidance acknowledges that remaining on the same brand is often recommended. This is because different formulations are specifically designed to release the active ingredient at different locations within the bowel, which affects its therapeutic action.


Q: Is dizziness or feeling lightheaded a possible side effect of Asamax?

Official product information classifies dizziness as an Uncommon adverse reaction (affecting less than 1 in 100 users). While lightheadedness is not separately listed, severe dizziness can be a documented sign of a serious allergic reaction, such as the acute intolerance syndrome.


Q: What happens if I accidentally miss a dose of Asamax? (General information question)

Official administration instructions describe how a missed dose is generally handled by being administered as soon as possible, unless it is almost time for the next scheduled dose. Official documents indicate that two doses are not to be used at the same time to make up for a missed dose.


Q: What signs of liver problems should a person watch for while taking Asamax?

Serious adverse reactions include toxicity to the liver (hepatotoxicity). The documented signs associated with liver problems can include yellowing of the skin or eyes, dark-colored urine, stomach pain, and feeling unusually tired or sick.


Q: Does Asamax affect white blood cell counts?

Official product information states that the medicine is associated with the potential for changes in blood cell counts. This includes a very rare decrease in white blood cells (leukopenia), as well as other blood disorders.


Q: Does Asamax cause diarrhea or is the diarrhea a symptom of the condition itself?

Diarrhea is classified in official documents as a Common adverse reaction to the medicine itself. It is recognized that it can be difficult to distinguish this side effect from the ongoing symptoms of the underlying inflammatory bowel condition.


Q: Does the effectiveness of Asamax vary depending on the location of the inflammation in the bowel?

The effectiveness of Asamax is closely linked to its delivery system. Different dosage forms (like oral tablets vs. suppositories) are formulated to promote that the active ingredient reaches the specific location of the inflammation in the colon or rectum where it is needed most.


Q: What is the risk profile of Asamax for someone who has pre-existing liver disease?

Regulatory guidance advises that a caution is documented when the medicine is administered to patients with known impaired hepatic (liver) function. This is due to an officially acknowledged increased risk of toxicity in this population.

How should Asamax be stored and disposed of?

Storage and Disposal of Asamax (Mesalazine)

Official labeling defines strict conditions for storing and disposing of Asamax to maintain product integrity and safety.


Storage Requirements

Condition Regulatory Mandate
Temperature Store at Controlled Room Temperature, typically 20 C to 25 C (68 F to 77 F), with specific restrictions against freezing.
Protection Keep the product in its original, tightly closed container and protect it from light, moisture, and humidity.
Child Safety The medicine must be stored out of the sight and reach of children.

Disposal Instructions

Expired or unused Asamax must be disposed of according to local pharmaceutical waste procedures. Official guidance recommends utilizing available drug take-back programs. The product must not be thrown into wastewater or household sewage to comply with environmental regulations.

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

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