Sionara

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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 Sionara

What is Sionara? Defining the Drug's Identity and Purpose

Property Description
Active ingredient Celecoxib (INN)
Form Capsule, Oral solution/suspension
Pharmacological class Selective Cyclooxygenase-2 (COX-2) Inhibitor
General Purpose Symptomatic relief from pain and inflammation
Origin Synthetic small molecule

Sionara: Defining the Core Identity and Composition

Sionara is a prescription pharmaceutical product for oral use containing the single active ingredient, Celecoxib (INN), which is a synthetic compound. The medication is typically dispensed as a capsule but may also be available as an oral solution or oral suspension, providing flexibility in administration. As a single-agent product, its primary characteristic lies in the specific chemical structure of Celecoxib, a diaryl-substituted pyrazole. This composition ensures that the effects are solely derived from the targeted properties of the active substance.

What Pharmacological Class Does Sionara Belong To?

Sionara belongs to the major pharmacological group of Nonsteroidal Anti-inflammatory Drugs (NSAIDs), specifically categorized as a selective Cyclooxygenase-2 (COX-2) inhibitor (a coxib). Pharmacological studies have supported this classification, noting its unique design compared to traditional NSAIDs. This specialized selection of the COX-2 enzyme pathway provides the foundation for the drug's mechanism of action.

General Purpose: Analgesic and Anti-Inflammatory Action

The fundamental purpose of Sionara is to provide targeted symptomatic relief by intervening in the body's inflammatory cascade. By reducing the synthesis of prostaglandins—chemical mediators that intensify pain and swelling—the medication delivers analgesic (pain-relieving), anti-inflammatory (reducing swelling and tenderness), and antipyretic (fever-reducing) effects. Clinical recognition for Celecoxib is strong, confirming its therapeutic utility in managing the signs and symptoms associated with various inflammatory processes. Sionara helps ease general discomfort and reduce physical signs of inflammation, which is its core benefit.

What side effects are possible with Sionara?

Possible Side Effects

Sionara (celecoxib) is a non-steroidal anti-inflammatory drug (NSAID) and is generally associated with a range of side effects, though many are common and mild.

Common Side Effects

Body System Side Effect
Gastrointestinal Abdominal pain, indigestion (dyspepsia), diarrhea, flatulence, nausea
General Peripheral edema (swelling of hands, ankles, or feet), headache, dizziness
Respiratory Upper respiratory tract infection, sore throat

Serious Warnings and Precautions

Patients should be aware of the potential for serious cardiovascular events, including heart attack and stroke, especially with prolonged use and in those with pre-existing heart conditions. Sionara is contraindicated immediately before or after coronary artery bypass graft (CABG) surgery.

There is also a risk of serious gastrointestinal adverse events, such as bleeding, ulceration, and perforation of the stomach or intestines. This risk is higher in the elderly and those with a history of gastrointestinal disease.

Contraindications

Sionara is not recommended for use in patients with a known allergy to celecoxib, sulfonamides, or other NSAIDs (such as aspirin) that cause asthma, hives, or other allergic reactions. It is also contraindicated in patients with severe heart failure, active gastrointestinal bleeding or ulceration, or severe kidney or liver impairment. Use during the third trimester of pregnancy is not advised. Consult your physician about all pre-existing conditions and medications before starting treatment.

Overdose and Emergency Response

Overdose and When to Seek Help

Official regulatory documents describe that acute overdose with Sionara (Celecoxib) typically results in manifestations affecting the gastrointestinal (GI) and central nervous system (CNS). Common documented presentations include lethargy, drowsiness, nausea, vomiting, and epigastric pain.

Classification Official Regulatory Statement
Severity Classification Overdose carries a documented risk of severe outcomes, including GI bleeding, ulceration, or perforation, as well as acute renal failure, hypertension, coma, and respiratory depression (though these are rare).
Antidote Information No specific antidote is known for Celecoxib overdose.

Mandatory Emergency Action

Immediate medical attention is required for any suspected overdose. Emergency services (911 or Poison Control) must be contacted right away if the individual exhibits critical signs, which include trouble breathing, collapse, seizure, or if they cannot be awakened.

Management procedures, such as the use of activated charcoal, may be indicated for patients who are symptomatic or have ingested a large overdose and are seen within four hours. The necessary clinical response consists of general symptomatic and supportive care due to the lack of an antidote. Regulatory documents do not list population-specific (e.g., pediatric or geriatric) overdose management separate from these general guidelines.

Therapeutic Uses of Sionara

What Sionara Treats: Main Uses and Benefits

Sionara (Celecoxib) is applied across domains where additional symptomatic support is needed, primarily addressing clinical situations marked by heightened symptom distress.

The medication is indicated for the management of the signs and symptoms of several conditions. It may be part of symptomatic management for conditions including Osteoarthritis, Rheumatoid Arthritis, Ankylosing Spondylitis, acute pain, and primary dysmenorrhea.

Easing Chronic Joint Pain and Systemic Inflammation

Sionara is commonly used to help with the symptomatic management of chronic inflammatory diseases. It is relevant for easing symptoms related to inflammatory or irritative states, such as persistent joint pain, stiffness, and tenderness. This application contributes to easing the overall symptom load and supports general well-being during symptomatic phases.

Supportive Relief for Acute and Targeted Discomfort

The medication is helpful when short-term symptomatic assistance is needed for symptoms associated with acute or episodic changes. This includes pain following surgical or dental procedures, and the management of severe symptoms related to primary dysmenorrhea (menstrual cramps) or acute migraine headaches. Applied during phases when symptoms become more noticeable, it offers symptomatic relief that may help patients cope more steadily with symptom fluctuations and supports general comfort.


Quick Fact: Support for Inflammatory Joint Symptoms

Sionara is commonly used to address pain, tenderness, and stiffness associated with chronic joint conditions, contributing to improved comfort during periods of heightened symptoms.

Regulatory References

  1. Sionara is indicated for the management of the signs and symptoms of several conditions

Eligibility and Restrictions for Use

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

The eligibility for Sionara (celecoxib) is strictly defined by regulatory authorities based on known sensitivities and patient health status.


Category Official Regulatory Status
Populations for whom use is allowed Adults and pediatric patients 2 years of age and older (specifically for Juvenile Rheumatoid Arthritis)
Populations for whom use is contraindicated Patients with known allergy to celecoxib or sulfonamides (sulfa allergy). Patients with a history of allergic-type reactions (like asthma or hives) after taking aspirin or other NSAIDs. Patients in the setting of Coronary Artery Bypass Graft (CABG) surgery. Patients with active GI bleeding or severe hepatic/renal impairment.

Eligibility-Related Restrictions

  • Pregnancy and Lactation: Use is not recommended during breastfeeding and avoided starting at 30 weeks gestation due to fetal risks.
  • Organ Impairment: Patients with moderate hepatic impairment require caution, and dose reduction is typically advised. Use is not recommended in those with severe (Child-Pugh Class C) hepatic dysfunction.
  • Cardiovascular Conditions: Use requires caution in patients with established cardiovascular disease or risk factors, and it is contraindicated in those with Congestive Heart Failure (CHF) NYHA Class II-IV.

Connection to the overall eligibility profile

Regulatory documents define who can and cannot use Sionara primarily through mandatory contraindications that bar use in patients with specific allergies, severe organ dysfunction, and acute high-risk cardiac settings. Use is otherwise generally permitted in adults and certain children 2 years and older, but with strong restrictions applied to reproductive and cardiovascular patient populations.

What should I know about interactions with other medicines?

Interactions with other medicines and products

Official regulatory documents define specific interaction patterns for Sionara (Celecoxib), primarily involving metabolic pathways and pharmacodynamic effects with co-administered substances. These documented interactions establish restrictions and monitoring requirements.

Pharmacokinetic and Pharmacodynamic Interactions

Interacting Substance Category Documented Interaction Outcome
Non-aspirin NSAIDs Co-administration is generally avoided due to an increased risk of adverse reactions.
CYP2C9 Inhibitors (e.g., Fluconazole) Increases the plasma concentration (exposure) of Celecoxib by approximately two-fold.
Oral Anticoagulants (e.g., Warfarin) Increases the risk of serious bleeding events, necessitating close monitoring of anticoagulant activity.
ACE Inhibitors / ARBs / Diuretics May diminish the desired blood pressure or fluid reduction effect of the co-administered medication.
Lithium or Digoxin Increases the serum concentration of both Lithium and Digoxin by reducing their renal clearance.

Administration and Population-Specific Notes

Co-administration with an aluminum- or magnesium-containing antacid reduced the peak plasma concentration of Sionara. When taken with a high-fat meal, the time to reach peak concentration is delayed. The combination of Sionara with ACE Inhibitors or ARBs carries an increased risk of deterioration of renal function in patients who are elderly, volume-depleted, or have underlying renal impairment. These constraints reflect regulatory classifications used to define co-administration conditions.

Mechanism of Action

Selective Target: Inhibiting the COX-2 Enzyme

Sionara's mechanism is defined by the highly selective competitive blockade of the Cyclooxygenase-2 ( COX-2) enzyme, which is the inducible isoform responsible for high-level prostanoid synthesis following cellular activation. The drug fits precisely into the COX-2 active site, preventing the conversion of arachidonic acid into prostanoids; the mechanism has minimal impact on the constitutive COX-1 enzyme.


Modulating the Prostaglandin Signaling Cascade

The molecular blockade of COX-2 dramatically reduces the synthesis of key inflammatory mediators, particularly Prostaglandin E2 ( PGE2), both at peripheral sites and centrally in the hypothalamus. This attenuation of PGE2 signaling results in the physiological consequences of reduced nociceptor sensitization and modulation of the central thermal set point, reflecting the lessened generation of PGE2 within those pathways.


Constraints on Vascular Homeostasis

The mechanism is functionally constrained by its role in vascular signaling: the selective inhibition of COX-2 reduces endothelial prostacyclin ( PGI2), a COX-2-derived prostanoid with anti-aggregatory and vasodilatory properties. This action shifts the physiological balance toward pro-aggregatory signals, which is the underlying biological mechanism reflecting the TXA2/ PGI2 imbalance caused by COX-2 inhibition in vascular tissues.

Dosage and Administration Information

How to use Sionara

Sionara (celecoxib) is administered via the oral route, primarily dispensed in capsule form across several strengths, including 50 mg, 100 mg, 200 mg, and 400 mg. An oral solution may also be available for specific approved uses. The overarching principle for its application is the use of the lowest effective dose for the shortest possible duration, necessitating that the need for continued therapy be periodically re-evaluated.

Official Dosing Regimens

Usage schedules vary based on the clinical scenario. For chronic management of symptoms associated with Osteoarthritis, the usual regimen is 200 mg once daily or 100 mg twice daily. Dosing for Rheumatoid Arthritis ranges from 100 mg to 200 mg, administered twice daily. The maximum recommended daily intake for these chronic uses is 400 mg. For acute pain or primary dysmenorrhea, the schedule involves a higher initial loading dose of 400 mg, followed by a subsequent 200 mg dose if necessary on the first day. Maintenance doses are 200 mg taken twice daily as needed thereafter.

Administration Conditions and Adjustments

The medication may be taken with or without food. For individuals who cannot easily swallow the capsule, the entire contents can be safely sprinkled onto a teaspoon of cool applesauce, rice gruel, yogurt, or mashed banana, provided the mixture is consumed immediately with water. Official dose modifications are directed for certain populations, such as a 50% dose reduction for patients with moderate hepatic impairment (Child-Pugh Class B) and specific weight-based guidelines for pediatric patients with Juvenile Rheumatoid Arthritis.

Recent Clinical Evidence

Research Evidence / Overview of Studies for Sionara

Research Evidence for Symptom Evaluation in Chronic Joint Conditions

A significant body of research, primarily involving randomized controlled trials (RCTs), has been used in research exploring how symptoms change over time relevant to chronic joint conditions. These studies are designed to see how the medication was observed in large groups of people over defined periods. The evidence base includes comparisons against inactive treatments (placebo) and other studied medications. The discussion that follows focuses on the types of outcomes measured, such as functional status and pain assessment tools, and the duration of these evaluation studies.


Evidence Structure in Osteoarthritis (OA)

For research examining symptoms related to Osteoarthritis, researchers have conducted extensive short-term RCTs and, more notably, large-scale, long-term observational settings evaluating daily-life functioning as part of mandated regulatory trials. The study populations included adults, often with OA of the knee and hip, and specific consideration was given to older adults requiring chronic therapy. The outcomes measured were primarily patient-reported outcomes describing perceived discomfort and functional status, using standardized tools like the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC). This index uses standardized scoring to evaluate pain, stiffness, and overall physical function. Studies report how symptoms evolved in the observed populations, showing measurements of changes in joint stiffness and reported pain levels over the study period.


Evidence Structure in Rheumatoid Arthritis (RA)

Research on Rheumatoid Arthritis symptoms also heavily relies on RCTs and systematic reviews, which was evaluated in adults requiring ongoing medication for their condition. These studies focused on outcomes linked to inflammatory or irritative states and outcomes reflecting daily functioning or activity level. Researchers monitored changes using standardized counts of tender and swollen joints, alongside patient-reported outcomes describing perceived discomfort. The measured symptomatic response was described in studies as similar to that reported for other studied comparator medications. The limitations noted reflect the requirement for extended safety monitoring for chronic conditions.


Research Evidence for Other Approved Clinical Situations

Research has also explored scenarios related to symptoms in other conditions, utilizing trial designs specifically relevant to episodic or acute symptom changes. The available research describes short-term trial designs and specific measurement scales.

Research for Ankylosing Spondylitis (AS) involved RCTs comparing the medication to inactive treatment. These studies focused on outcomes related to physical discomfort and function, using specialized tools like the BASDAI to assess changes in pain and spinal stiffness. For acute pain situations, such as post-operative discomfort, the evidence consists of short-term RCTs that focused on a single dose or short course of administration. The findings contribute to the body of evidence describing how patients reported their experience of pain over very short, defined time intervals.


Documented Evidence Gaps and Areas of Research Uncertainty

Official scientific literature and regulatory findings highlight several areas where current evidence presents limitations. While outcomes related to physical discomfort have been observed in short-term studies, the long-term effects are not fully established regarding certain extended outcomes like all-cause mortality, which was observed in some studies with mixed findings. Furthermore, data for certain groups remain insufficient, meaning subgroup findings are uncertain when considering patients with certain pre-existing comorbidities. Regulatory bodies have also pointed to a historical context of conflicting evidence when comparing the medication's safety profile to some other traditional medications.

Frequently Asked Questions (FAQ)

Common questions about Sionara (FAQ)


Q: Is Sionara used for anything besides what is mentioned in the official uses?

A: Official regulatory documents indicate that Sionara (Celecoxib) is approved for several specific conditions. These typically include the symptomatic relief of conditions such as Osteoarthritis, Rheumatoid Arthritis, and Acute Pain. The medication is also approved for conditions such as Ankylosing Spondylitis and Primary Dysmenorrhea, and the oral solution formulation is approved for acute migraine.


Q: How quickly does Sionara start working after the first time taking it?

A: Studies show that the active ingredient reaches its highest concentration in the bloodstream approximately three hours after an oral dose. For acute pain, significant relief has been reported in clinical studies within 24 to 48 hours of beginning treatment.


Q: Does Sionara cause weight gain or weight loss?

A: According to official product information, peripheral edema—which is swelling caused by fluid retention—and, in some less common instances, unexplained weight gain are reported as potential side effects. Weight loss is not typically listed as a reported adverse reaction.


Q: Can Sionara be used by people who are sensitive to certain ingredients?

A: Sionara is contraindicated if a person has a known allergy to the active ingredient, Celecoxib, or to sulfa drugs (sulfonamides). The drug also contains several inactive ingredients, such as lactose monohydrate. If there are known sensitivities to non-active components, it may be helpful to review the full list of ingredients with a healthcare provider.


Q: What happens if I forget to take a Sionara dose?

A: If a dose is missed, patient information guidance describes that a missed dose may be taken as soon as it is remembered. However, if it is nearly time for the next scheduled dose, the missed dose should be skipped entirely. Taking two doses at the same time is not advised.


Q: Is Sionara a type of controlled substance?

A: Official classification documents confirm that Sionara (Celecoxib) is a non-narcotic drug. It is not listed as a controlled substance under regulatory frameworks.


Q: How long do most people stay on Sionara treatment?

A: Regulatory guidance emphasizes that, for chronic conditions, the medication should be used at the lowest possible dose for the shortest period required. The need for continued long-term treatment is typically re-evaluated periodically by the prescriber.


Q: What do research studies say about the long-term effects of Sionara?

A: Studies have explored long-term use, and official warnings state that the risk of serious cardiovascular events, such as heart attack and stroke, may increase with the length of use. This approach is aligned with regulatory guidance that suggests using the lowest effective dose for the shortest duration necessary to meet the treatment goal.


Q: Is Sionara safe for use in older adults?

A: Dose adjustments are generally not considered necessary for older adults (over 65 years). However, older patients are known to have a higher risk for serious gastrointestinal side effects. Closer monitoring by a healthcare professional is often considered when this medication is used in this population.


Q: Can people with high blood pressure use Sionara?

A: Official warnings state that medications in this class can cause new or worsening high blood pressure (hypertension) and may interfere with the effectiveness of existing blood pressure medications. Close monitoring of blood pressure is described as important during treatment with this medication.


Q: Does Sionara affect sleep quality?

A: Official reports on adverse reactions list difficulty sleeping (insomnia) as a common side effect. Other central nervous system effects, such as dizziness and headache, are also listed in product information.


Q: Does Sionara interact with herbal supplements?

A: Sionara is metabolized in the body by a specific liver enzyme called CYP2C9. While not all herbal supplements are listed in regulatory documents, any substance known to affect this enzyme (e.g., St. John's Wort) or to increase bleeding risk could potentially interact. It is recommended that patients inform their healthcare provider about all supplements being taken.


Q: Does Sionara affect driving or operating machinery?

A: Official product information advises caution regarding certain side effects. If patients experience dizziness, drowsiness (somnolence), or fatigue, it is advised that activities requiring mental alertness, such as driving or operating complex machinery, be avoided until the patient knows how the medication affects them.


Q: What if Sionara doesn't seem to be working after a few weeks?

A: Regulatory guidance suggests that if a patient does not respond to the medication for a chronic condition after a defined period (such as six weeks at the recommended dose), prescribers should consider stopping the treatment. This highlights the importance of re-evaluating the course of therapy if effectiveness is not achieved.


Q: Is there a risk of becoming dependent on Sionara?

A: Regulatory analysis confirms that Sionara is a non-narcotic drug. It is not associated with a risk of drug abuse or dependence.


Q: Why do official documents mention a specific organ risk with Sionara?

A: The mechanism of the drug relates to its classification as a selective COX-2 inhibitor, which reduces the synthesis of certain protective substances in the body. This shift in physiological balance is the underlying reason for the warnings regarding potential serious cardiovascular, gastrointestinal, and renal adverse effects.


Q: What should I do if I experience a very rare side effect listed for Sionara?

A: Official patient counseling information describes the signs of a serious reaction that warrant seeking emergency medical attention immediately. This includes symptoms such as chest pain, sudden weakness, shortness of breath, signs of bleeding (like blood in vomit or stool), or severe skin reactions.


Q: Does Sionara cause any emotional or mood changes?

A: Official product information lists psychiatric side effects as possible, though uncommon. Rare reports include anxiety, depression, and post-marketing reports of hallucinations.


Q: Can people with a history of heart problems use Sionara?

A: Official restrictions define limits for use in people with heart problems. It is contraindicated (not recommended for use) in the setting of coronary artery bypass graft (CABG) surgery and in patients with severe heart failure. Patients with existing cardiovascular disease or risk factors require caution because of the increased risk of serious cardiovascular events in this population.


Q: Is Sionara a new drug or has it been available for a while?

A: The active ingredient, Celecoxib, was initially approved by the FDA in 1998. This means the medication has been available for a significant period and has a long history of use for conditions like Osteoarthritis and Rheumatoid Arthritis.


Q: Does Sionara affect appetite?

A: Product information includes decreased appetite and, in some cases, loss of appetite among the reported side effects. These effects are generally considered rare or less common.


Q: What is the scientific reason for the required safety checks before starting Sionara?

A: Safety checks are required because the drug is contraindicated or requires extreme caution in patients with certain pre-existing high-risk conditions. These include severe organ impairment (kidney or liver), severe heart failure, active gastrointestinal bleeding, and known allergies to sulfa drugs, which must be considered before starting treatment.


Q: Does Sionara interact with alcohol?

A: Official warnings advise caution regarding alcohol consumption during treatment. Combining the medication with alcohol can potentially increase the risk of serious gastrointestinal adverse events, such as bleeding.


Q: Can Sionara be used by teenagers or children?

A: Official regulatory documents define a specific pediatric use for the medication. It is approved for use in children and teenagers aged 2 years and older for the management of the signs and symptoms of Juvenile Rheumatoid Arthritis (JRA).


Q: Does Sionara affect fertility?

A: Based on the way this class of medication works, regulatory documents state that the use of NSAIDs may delay or prevent the rupture of ovarian follicles in women, which has been associated with reversible difficulties in conception. For women experiencing difficulties conceiving, regulatory information suggests that discontinuation of the medication may be considered.


Q: What is the half-life of Sionara?

A: According to pharmacokinetic data, the terminal half-life of the active ingredient in Sionara is approximately 11 hours when taken under fasted conditions. The half-life refers to the time it takes for half of the drug to be eliminated from the body.

How should Sionara be stored and disposed of?

How to Store and Dispose of Sionara (Celecoxib)

Sionara must be stored and handled according to specific regulatory requirements to maintain product stability and ensure public safety.

Storage Requirements

The medication must be stored in its original container, kept tightly closed, at controlled room temperature (20 C to 25 C / 68 F to 77 F). The product must be protected from freezing and kept away from excess heat, moisture, and light. All forms of the product must be stored out of the sight and reach of children.

Specific stability rules apply when capsule contents are mixed with certain foods: the mixture is stable for up to 6 hours under refrigeration (2 C to 8 C) before use.

Disposal Instructions

Outdated or unused medicine must be disposed of in accordance with local regulations, often by asking a healthcare professional or utilizing an authorized take-back program. For any oral liquid formulation, the regulatory labeling specifies that the bottle with the remaining medicine must be thrown away immediately and not reused.

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

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