Maricrio

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Medically reviewed

Rosario Oropesa

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 Maricrio

Property Description
Active ingredient Omeprazole (including salt forms)
Form Delayed-release capsules, tablets, suspension, injection
Pharmacological class Proton Pump Inhibitor (PPI)
Common purpose Sustained gastric acid suppression
Origin Synthetic, substituted benzimidazole

Maricrio is a medicinal product defined by the active ingredient Omeprazole, which belongs to the pharmacological class of Proton Pump Inhibitors (PPIs). This medication is fundamentally classified as a potent, systemic anti-secretory agent intended to modulate processes related to gastric acidity.

Maricrio: Classification and Chemical Origin

Maricrio is recognized as a specific agent for modifying the digestive environment by inhibiting acid production. The substance Omeprazole is a synthetic compound derived from the substituted benzimidazole class. The Omeprazole active ingredient may be formulated as various salts, such as Omeprazole magnesium or Omeprazole sodium, which are incorporated into the final dosage form. Its identity as a PPI is based on its capacity to selectively and permanently bind to the H^+K^+-ATPase enzyme, widely known as the gastric proton pump, which is the final common pathway for acid secretion in the stomach's parietal cells. This mechanism is clinically recognized for achieving robust and highly specific acid control.

Purpose and Physiological Role as an Anti-Secretory Agent

The general purpose of Maricrio is to achieve robust and lasting acid suppression within the stomach and the upper digestive tract. As an effective anti-ulcer agent, the medication's physiological role is focused on dramatically lowering the concentration of gastric acid by irreversibly inactivating the proton pump. Proton pump inhibitors offer sustained acid control superior to histamine H2-receptor blockers. This high efficacy means the medicine reliably provides a long-lasting reduction in the overall acid levels in the stomach. This potent, targeted action creates an environment conducive to the natural restoration of tissues that may be compromised by the corrosive effects of excessive acid.

Available Forms and Monotherapy Status

Maricrio is provided as a single-ingredient product, confirming its status as monotherapy focused exclusively on the action of Omeprazole. This medication is available in several pharmaceutical preparations, primarily as delayed-release capsules and tablets for oral administration, as well as oral suspension. Forms such as powder for injection are also available, enabling administration via the intravenous route when the patient requires non-oral delivery, ensuring continuous anti-secretory effect.

Regulatory References

  1. Omeprazole (MedlinePlus Drug Information)

What side effects are possible with Maricrio?

Possible Side Effects and Safety Information

The safety profile for Maricrio (Omeprazole) is documented across several regulatory categories, distinguishing between common, expected events and rare, systemic risks. Adverse reactions are classified according to incidence data from clinical trials and post-marketing surveillance, consistent with official government prescribing information.


Frequency-Classified Adverse Reactions

The most frequently reported events primarily affect the digestive and nervous systems:

  • Common (ge 1/100): Headache, abdominal pain, nausea, diarrhea, vomiting, and flatulence.
  • Uncommon (ge 1/1,000): Insomnia, vertigo, dermatitis, and increased liver enzymes.
  • Rare (ge 1/10,000): Leukopenia (low white blood cells), severe hypersensitivity reactions (including anaphylaxis), and Acute Interstitial Nephritis.

Serious and Long-Term Safety Considerations

Official labeling documents the potential for rare, but serious, systemic adverse reactions, including Severe Cutaneous Adverse Reactions (SCARs) such as Stevens-Johnson Syndrome (SJS). The use of the medicine may also be associated with an increased risk of Clostridium difficile-associated diarrhea (CDAD) and other gastrointestinal infections.

Safety notes explicitly link certain risks to the duration of therapy:

  • Long-term use (typically one year or more) is associated with an increased risk of bone fracture (hip, wrist, or spine) and Hypomagnesaemia (low magnesium levels).
  • Very long-term use (three years or more) is associated with the potential for Cyanocobalamin (Vitamin B-12) deficiency.

Population-Specific Notes

The safety profiles for specific groups include the note that pediatric patients have reported respiratory system events and fever more frequently. For older adults, the increased risk of osteoporosis-related fractures is noted.

This structure ensures that the spectrum of risks, from frequent minor effects to rare systemic events and duration-dependent risks, is clearly communicated as defined by regulatory authorities.

Overdose and Emergency Response

Overdose and When to Seek Help

Official regulatory documents emphasize that immediate medical attention is required for any suspected overdose of Maricrio. Overdose events typically result from exceeding the prescribed dose, though individual responses can vary.

Documented Overdose Manifestations

The specific signs and symptoms of a Maricrio overdose are often documented by regulatory agencies (such as the FDA or EMA) and may include severe symptoms not typically seen at therapeutic doses. General severe symptoms of drug toxicity can involve changes in consciousness, severe cardiovascular effects, or profound respiratory changes. Because specific documented symptoms for Maricrio are not universally public, any unusual or severe change in health should be considered an emergency.

Emergency Action and Management

If an overdose is suspected, seek emergency medical help immediately. Do not wait for symptoms to worsen. Official instructions mandate contacting emergency services or a poison control center immediately, providing the exact amount taken, if known, and the time of ingestion.

Management in a medical setting is generally supportive and symptomatic. This includes monitoring vital functions, maintaining an open airway, and potentially employing measures to reduce drug absorption, such as the use of activated charcoal. Any potential specific antidotes or reversal agents would be detailed in the official prescribing information for medical professionals, and specialized care may be required based on the patient's clinical state.

Therapeutic Uses of Maricrio

The medication is used in situations involving certain distressing symptoms. It is commonly used to help manage symptoms that become more disruptive during flare-ups, such as frequent heartburn and acid regurgitation, which often interfere with daily comfort. The medication is used for managing symptoms related to organ-specific functional stress.

It is relevant across therapeutic domains including the management of Gastroesophageal Reflux Disease (GERD), the healing of Erosive Esophagitis and peptic ulcers (both gastric and duodenal), and the specialized treatment of Zollinger-Ellison Syndrome. The core benefit is applied in addressing conditions involving inflammatory or irritative processes. This may assist in managing conditions presenting with systemic or localized discomfort.

“The core benefit of the medication is to support the patient during difficult episodes by easing distress and contributing to easing the overall symptom load.”

Maricrio may also assist with reducing the risk of recurrence in healed damage and is applied in clinical settings to provide essential supportive relief where there is an increased risk of ulcers, such as for patients taking NSAIDs.


Quick Fact: Support for Symptoms of Persistent Heartburn Maricrio helps address symptoms that interfere with daily functioning and is relevant when supportive symptom management is appropriate for conditions characterized by periods of heightened symptoms.

Eligibility and Restrictions for Use

Who Can and Cannot Use Maricrio?

The population eligibility for Maricrio (Omeprazole) is strictly defined by regulatory documentation based on patient condition, age, and co-administered medications.


Absolute Contraindications

The medicine is contraindicated and must not be used in the following populations:

  • Patients with documented hypersensitivity to omeprazole, to any component of the formulation, or to any substituted benzimidazoles (the pharmacological class).
  • Patients receiving concomitant treatment with the antiretroviral drugs nelfinavir or rilpivirine.

Age-Specific Eligibility

Age Group Eligibility Status (Regulatory Basis)
Adults (18+ years) Approved for all labeled conditions.
Pediatric Patients Established for specific conditions like Erosive Esophagitis (EE) in infants as young as one month of age (in some regions) and GERD in children ge 1 year.
Infants (< 1 month) Safety and effectiveness have not been established.

Restricted or Conditional Use

Use requires caution or special pre-treatment measures in certain groups:

  • Gastric Malignancy: The presence of gastric malignancy must be excluded in adults prior to starting therapy, as symptom relief may mask the condition.
  • Hepatic Impairment: Use should be approached with caution in patients with severe hepatic impairment, as drug clearance is decreased.
  • Pregnancy and Lactation: Use during pregnancy is generally considered acceptable when clinically necessary. However, use during lactation is often not recommended by regulatory authorities, as omeprazole is excreted into human milk.

What should I know about interactions with other medicines?

Interactions with other medicines and products

The interaction profile of Maricrio (Omeprazole) is defined by two mechanisms documented in regulatory sources: its inhibition of the CYP2C19 enzyme (a pharmacokinetic effect) and its potent gastric pH elevation (a pharmacodynamic effect).

Formal Interaction Constraints

Co-administration with certain drugs is restricted due to these interactions. The combination of Maricrio with Rilpivirine is contraindicated because the resulting pH increase significantly reduces Rilpivirine plasma concentrations. Co-administration with Nelfinavir is also strongly discouraged for the same reason. Use with Clopidogrel is officially discouraged as Maricrio reduces the formation of the anti-platelet agent’s active metabolite.

Exposure-Altering Interactions

Substance Type Interaction Effect
Drugs metabolized by CYP2C19 Maricrio increases plasma levels of substances like Cilostazol, Diazepam, and Phenytoin by reducing their clearance. Monitoring is often required for drugs with a narrow therapeutic index, such as Warfarin and Tacrolimus.
Acid-Dependent Drugs Maricrio lowers the absorption of medicines requiring an acidic environment, including Atazanavir and Ketoconazole, potentially leading to loss of effectiveness.
Enzyme Inducers Products like Rifampin or the herbal supplement St. John's Wort can significantly reduce Maricrio's own concentration in the body through enzyme induction.

Interaction relevance can be heightened in patients with hepatic impairment due to the drug’s prolonged elimination half-life.

Mechanism of Action

Maricrio (Maraviroc) operates solely within the domain of receptor-mediated signaling pathways on specific host cells to inhibit a required membrane fusion event involving viral components.


Selective CCR5 Receptor Antagonism

Maricrio is a small molecule that acts by binding selectively and reversibly to the human C-C chemokine receptor type 5 (CCR5), a coreceptor found on the surface of T-cells and other immune cells. The drug functions as a negative allosteric modulator, inducing a specific conformational change in the CCR5 receptor upon binding.


Modulates Host-Viral Component Interaction

This conformational change modifies early molecular steps, preventing the necessary interaction between the CCR5 coreceptor and the viral gp120 envelope glycoprotein. The subsequent inhibition of the binding and fusion process between the viral envelope and the host cell membrane is an action required for the virus to transfer its genetic material.


Alters Cellular Entry Kinetics

The resulting molecular consequence is the reduced probability of successful cellular entry. This action reflects the modulation of the entry pathway activity and leads to altered cell population kinetics within the targeted systems, specifically decreasing the likelihood of viral replication.

Dosage and Administration Information

How Maricrio is Used: Administration Guidelines

Maricrio (Omeprazole) is used according to established guidelines to ensure its potent anti-secretory action is correctly delivered. This section details the administration methods, dosing schedules, and special handling instructions.


Approved Administration and Dosage

The primary route of administration is oral, utilizing dosage forms such as delayed-release capsules (10 mg, 20 mg, 40 mg) and tablets. An intravenous (IV) form is also available for use in clinical settings when oral intake is not feasible.

Indication (Example) Standard Adult Dose Frequency Duration Pattern
Active Duodenal Ulcer 20 mg Once daily Typically 4 to 8 weeks
Erosive Esophagitis (EE) 20 mg Once daily Typically 4 to 8 weeks
Pathological Hypersecretory Conditions Initial 60 mg Once daily Long-term, individualized

Daily doses exceeding 80 mg for pathological hypersecretory conditions must be administered in divided doses. Treatment is often short-term (4–8 weeks) but extends to long-term use for maintenance therapy or chronic conditions like Zollinger-Ellison Syndrome.


Key Administration Instructions

Oral Maricrio should generally be taken before a meal, preferably in the morning. Due to the medicine's enteric coating, capsules and tablets must be swallowed whole; they should not be chewed, crushed, or split. Patients who cannot swallow the capsule whole may mix the contents with a small amount of a slightly acidic, soft food, such as applesauce, for immediate swallowing. For patients with severe hepatic impairment, a dose reduction is generally recommended.

Recent Clinical Evidence

Research Evidence / Overview of Studies for Maricrio


Research Evidence for Gastroesophageal Reflux Disease (GERD) and Symptoms

Research evaluated Maricrio in studies for Gastroesophageal Reflux Disease (GERD) and its symptoms. Short-term Randomized Controlled Trials (RCTs) and systematic reviews were conducted during periods of increased symptom activity, primarily tracking changes in patient-reported outcomes describing perceived discomfort, specifically the frequency of heartburn and regurgitation. Studies also monitored a physiological strain or stress outcome by measuring intragastric acid levels. Findings describe patterns observed in the studies related to outcomes reflecting daily functioning, with many studies detailing changes in the reported severity of discomfort.

Research Evidence for Healing Erosive Esophagitis

Research has examined Maricrio in the context of conditions, such as Erosive Esophagitis (EE), which was the focus of the studies. The primary evidence base consists of Phase 3 clinical trials and RCTs that directly evaluated the status of mucosal healing through repeated endoscopic examination. The research described how healing status was measured over the defined short-term study period, which was typically 4 to 8 weeks. Regulatory findings indicated that the clinical data was extrapolated from adults to evaluate the medicine’s use in infants based on similar underlying acid-related physiology.

Long-Term Study Data and Follow-Up

Evidence regarding the extended use of Maricrio is based on studies that monitored responses over defined time intervals, including both clinical trials with intermediate follow-up and long-term observational cohort studies. Studies and data describe measured patterns related to long-term acid control and the duration of symptomatic stability. In the case of Pathological Hypersecretory Conditions (like Zollinger-Ellison Syndrome), studies have monitored acid control and symptomatic patterns over periods extending up to eleven years. However, the level of certainty is low regarding continuous, long-duration use as evidence for this scenario is often derived from observational settings rather than controlled trials.

Frequently Asked Questions (FAQ)

Common questions about Maricrio (FAQ)


Q: Does Maricrio cure the condition or just manage it?

Maricrio is officially indicated for both short-term healing and long-term management, depending on the specific condition. Official information states it is used for the short-term healing of issues like erosive esophagitis and ulcers. For chronic conditions, such as Zollinger-Ellison Syndrome, the medicine provides long-term acid suppression. The medicine’s acid suppression creates an environment that can be conducive to the body's natural healing processes.


Q: What is the expected timeline for Maricrio to start showing benefits?

According to official product information, the anti-secretory effect begins within one hour, with the maximum effect seen within two hours of taking the dose. Some patients may start to feel relief from heartburn symptoms within 24 hours. The full therapeutic effect needed for conditions like healing ulcers can take between one and four days to fully manifest.


Q: Can Maricrio interact with over-the-counter medications like cold remedies?

Regulatory documents confirm that Maricrio has the potential to interact with certain prescription drugs. Because acid reducers may affect how some medications are absorbed or broken down, caution is advised. It is generally recommended to consult a healthcare professional before combining Maricrio with any new over-the-counter medications, including cold remedies.


Q: Can Maricrio affect heart health or cause chest pain?

Official warnings note that certain signs, such as chest pain or shoulder pain accompanied by lightheadedness, sweating, or pain spreading to the arms or neck, require immediate medical attention. These symptoms are listed as warning signs of a serious condition, which may or may not be related to the medication.


Q: What should be done if an allergic reaction occurs after taking Maricrio?

If you experience symptoms that suggest a severe allergic reaction, such as blisters, hives, swelling, or a spreading rash, official safety information states you should stop using Maricrio right away. Official guidance recommends seeking emergency medical attention if these signs appear.


Q: Can Maricrio affect joint or muscle pain?

Official post-marketing data includes reports of rare adverse effects such as muscle pain (myalgia) and muscle weakness. Regulatory information also notes that new or worsening joint pain has been associated with the development of systemic lupus erythematosus, a very rare side effect.


Q: What kind of test is needed to confirm if Maricrio is the right drug for someone?

Regulatory safety documents state that before starting treatment, a healthcare provider generally needs to exclude the possibility of gastric malignancy (a type of stomach cancer). Symptom relief from the medication could potentially hide this serious condition. For patients on long-term therapy, monitoring for Chromogranin A ( CgA) levels may be required.


Q: Is Maricrio used alone or does it always need to be combined with other medicines?

Maricrio is officially indicated for use alone (monotherapy) to treat conditions like GERD and ulcers. However, the product is also approved for combination use with antibiotics in certain therapies, such as the triple therapy regimen used to eliminate extitH. pylori infection.


Q: If I miss a dose of Maricrio, what is the best way to catch up?

The official Medication Guide advises that if you realize you have missed a dose, you should take it as soon as you remember. If it is nearly time for your next scheduled dose, you should skip the missed one entirely. To maintain the correct dosing level, the Medication Guide advises not to take two doses at the same time.


Q: Is it normal to experience stomach issues like diarrhea or constipation on Maricrio?

Regulatory data from clinical trials indicates that diarrhea is a common adverse reaction associated with this medication. While less frequent, official product information also reports constipation as a possible gastrointestinal side effect.


Q: Does Maricrio increase the risk of developing certain other infections or types of cancer?

Official warnings mention that long-term use may be associated with an increased risk of developing Fundic Gland Polyps, which are usually benign, and an increased risk of extitClostridium difficile-associated diarrhea. These risks should be discussed with a healthcare provider.


Q: What are the long-term effects of taking Maricrio that have been studied in research?

Official research and safety documents note that extended use has been associated with certain potential risks. Specifically, long-term use (typically one year or more) is associated with an increased risk of bone fracture and low magnesium levels (hypomagnesemia). Very long-term use (three years or more) may also lead to Vitamin B12 deficiency.


Q: Does Maricrio affect the ability to drive or operate heavy machinery?

Official product information reports that some patients experience central nervous system side effects, such as vertigo (dizziness) and insomnia (trouble sleeping). Because these effects may affect alertness and coordination, official guidance suggests patients exercise caution until they know how the medicine may affect their ability to perform tasks requiring alertness.


Q: Does Maricrio have an impact on a person's weight or body fat distribution?

Regulatory documents do not list general weight changes or body fat issues as common side effects of Maricrio. However, unexplained weight loss is noted in the official label as a warning sign of a serious condition that requires a doctor's evaluation.


Q: What is the risk of accidentally overdosing on Maricrio?

The official Patient Information advises that if you suspect you or someone else has taken too much of this medicine, you must immediately contact emergency services or a poison control center.


Q: Does Maricrio have a metallic or unpleasant taste in the oral solution form?

Post-marketing surveillance data from official sources includes reports of taste disturbances associated with Maricrio. These changes in taste perception may manifest as a metallic or unpleasant taste.


Q: What are the signs that Maricrio might be affecting the kidneys?

Official safety information documents the potential for a rare but serious condition called Acute Tubulointerstitial Nephritis ( TIN), which affects the kidneys. Signs can be non-specific, such as loss of appetite, nausea, or a general feeling of being unwell, alongside signs of decreased kidney function. If TIN is suspected, it is generally recommended to stop the medicine and seek a medical evaluation.


Q: Is it possible to develop a new infection after starting Maricrio treatment?

Published official studies and safety warnings indicate that using Maricrio may be associated with an increased risk of a specific infection called extitClostridium difficile-associated diarrhea ( CDAD). This condition should be considered by a healthcare professional if persistent diarrhea does not improve during treatment.


Q: Are there different dosages of Maricrio depending on the other medications being taken?

While the standard dosage schedule remains consistent, official labeling advises caution or contraindication when taken with certain other medicines. For example, co-administration with nelfinavir or rilpivirine is strictly discouraged or contraindicated due to interactions that affect drug concentrations.


Q: If I feel better, is it okay to stop taking Maricrio without talking to a doctor?

The official Medication Guide emphasizes that you should never change your dose or stop taking this medicine on your own. It is generally advised that all adjustments or discontinuation of Maricrio be discussed with a healthcare professional.

How should Maricrio be stored and disposed of?

Storage and Disposal Requirements for Maricrio

Maricrio must be stored and handled according to the regulatory requirements for Omeprazole formulations. The medicine is required to be stored at Controlled Room Temperature, typically 20 to 25 C (68 to 77 F), and must be protected from light and moisture. Keep the product in the original container and ensure it is tightly closed.

Specific stability rules apply to the reconstituted oral suspension, which must be stored in a refrigerator (2 to 8 C) and discarded after 30 days.

Child Safety: All forms of Maricrio must be kept out of the reach and sight of children.

Disposal: Unused or expired medication must be disposed of following local regulations, preferably utilizing a drug take-back program. The product should not be thrown into wastewater.

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

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