Rheuma Plus

Quick links to important sections

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 Rheuma Plus

Property Description
Active ingredient Sodium Hyaluronate
Form Sterile Solution
Pharmacological class Viscoelastic Agent
Common use Viscosupplementation
Origin Biologic material

Rheuma Plus is defined as an injectable preparation classified as a Viscosupplementation Agent (VSA), belonging to the pharmacological group of Viscoelastic Agents. Its design focuses on supplementing the natural components found within the joint to improve its mechanical performance. The preparation is administered as a Sterile Solution via Intra-articular Injection, delivered directly into the joint space.


What Type of Agent is Rheuma Plus?

Rheuma Plus is categorized as a Viscoelastic Agent, a classification that highlights its functional, supportive role in the joint rather than relying solely on systemic pain relief. It is a single-ingredient entity used for Viscosupplementation, which involves introducing exogenous Hyaluronic Acid (HA) into the joint, aiming to restore the physiological viscoelasticity of the synovial fluid. This method of treatment provides mechanical support to the joint to improve cushioning. This local, mechanical method of support is clinically recognized for targeting the joint structure itself, unlike oral medications.


Composition: Why is Sodium Hyaluronate Essential?

The sole active ingredient in Rheuma Plus is Sodium Hyaluronate. This substance is a high molecular weight polysaccharide and a type of Glycosaminoglycan (GAG) naturally present in connective tissues, including the synovial fluid of joints. As a pharmaceutical product, the Sodium Hyaluronate used is generally manufactured as a highly pure biologic material—often via bacterial fermentation—for use as an Endogenous Substance Replacement. Sodium Hyaluronate is recognized as an important substance in medical devices used for intra-articular injection, meeting specific standards for effectiveness and biocompatibility.


What is the General Purpose of a Viscoelastic Agent?

The general purpose of Rheuma Plus is to restore essential functional properties to the joint, specifically lubrication and shock absorption. By leveraging the viscoelastic properties of the injected Sodium Hyaluronate, the preparation physically reduces friction between the cartilage surfaces during movement. This restoration of a healthier fluid environment facilitates smoother, less strained joint mobility, which is particularly relevant for individuals experiencing discomfort during weight-bearing activities. These effects are associated with the mechanical benefits of increasing joint fluid viscosity.

What side effects are possible with Rheuma Plus?

Possible side effects and safety information

The official safety profile for Rheuma Plus (Sodium Hyaluronate intra-articular injection) is primarily structured around localized reactions associated with the injection procedure, as documented by governmental regulatory authorities (such as the FDA and EMA).


Documented Adverse Reactions

Adverse events are classified by frequency and System-Organ-Class (SOC) in regulatory documents. The most frequently reported reactions are classified as Common (occurring in 1/100 to 1/10 patients), including:

  • Musculoskeletal and Connective Tissue Disorders: Joint pain (arthralgia), joint swelling, and joint effusion (fluid accumulation).
  • General Disorders and Administration Site Conditions: Injection site pain, warmth, or redness (erythema).

These local effects are typically transient and resolve spontaneously within a few days, a time-related safety pattern explicitly noted in regulatory information.


Serious Adverse Reactions and Safety Constraints

The label documents specific, though rare, serious adverse reactions (occurring in fewer than 1/1,000 patients):

  • Intra-articular Infection (Septic Arthritis): A serious complication associated with any invasive joint procedure.
  • Anaphylactic Reactions: Severe, systemic allergic responses.

Safety restrictions mandate that Rheuma Plus is contraindicated for individuals with known hypersensitivity (allergy) to Sodium Hyaluronate preparations or with an active infection or skin disease present at the injection site. Safety and effectiveness have not been established in certain populations, including pregnant women, nursing mothers, or pediatric patients.

Overdose and Emergency Response

Overdose and When to Seek Help: Regulatory Information

The official overdose profile for combination products like Rheuma Plus, which typically contain Paracetamol (Acetaminophen) and Codeine, is governed by the distinct toxicological risks of both components.

Documented Manifestations and Severe Outcomes

Component Early Manifestations Severe Outcomes
Paracetamol Nausea, vomiting, pallor, abdominal pain. Delayed, potentially fatal hepatic failure, metabolic acidosis, cerebral oedema.
Codeine Somnolence, confusion, shallow breathing, constricted pupils (miosis). Respiratory depression, circulatory collapse.

Mandatory Emergency Action

SEEK IMMEDIATE MEDICAL ADVICE in the event of suspected overdosage, even if the patient feels well and symptoms are not present. The critical risk is the delayed, but potentially irreversible, liver damage caused by the Paracetamol component. Specific time-sensitive antidotes, such as N-acetylcysteine, are available for Paracetamol toxicity and must be administered within a limited window following ingestion.

Population-Specific Notes

The hazard of liver damage from overdose is officially recognized as greater in individuals with pre-existing conditions like non-cirrhotic alcoholic liver disease or glutathione depletion. Elderly patients may also exhibit increased sensitivity to the central effects of the opioid component.

Therapeutic Uses of Rheuma Plus

What Rheuma Plus Treats: Main Uses and Benefits

Rheuma Plus is used to provide symptom relief from common musculoskeletal discomfort, including aches, pains, and the feeling of stiffness in the joints and muscles. This class of therapeutic agents is commonly indicated for easing discomfort and inflammation associated with conditions like osteoarthritis and rheumatoid arthritis. The medication is generally applied in contexts where additional symptomatic support is needed, such as during periods when symptoms associated with joint and muscle issues are episodic or intensify over time.


This medication helps address symptom clusters that may become intense or disruptive, such as restricted mobility or localized swelling. It offers supportive relief that may help patients cope more steadily with difficult episodes and may assist with maintaining functional stability in situations where symptoms are more noticeable. The support provided helps ease the overall symptom burden:

“This medication offers supportive relief that helps improve day-to-day comfort during symptomatic periods.”


Quick Fact: Relief for Joint Stiffness

Rheuma Plus may assist in easing symptoms that interfere with daily comfort and is applied when symptoms create noticeable functional strain.

Regulatory References

  1. UK Medicines Regulator Assessment of Etoricoxib Indications

Eligibility and Restrictions for Use

Rheuma Plus is a Viscosupplementation Agent (Sodium Hyaluronate) whose eligibility for use is strictly defined by government regulatory agencies, such as the FDA, focusing on patient groups and local conditions at the injection site. These rules distinguish who is formally approved from who is strictly prohibited or requires special consideration.

Populations and Conditions that Define Non-Eligibility

Official regulatory labeling for intra-articular Sodium Hyaluronate preparations mandates that the medicine must not be administered to patients in the following situations:

  • Known Hypersensitivity: Patients with a documented allergy to Hyaluronate preparations (Sodium Hyaluronate) or, for some products, to avian-derived proteins.
  • Injection Site Infection: Patients with present infections or skin diseases in the area of the knee injection site, which reduces the potential for developing septic arthritis.

Age and Physiological Restrictions

  • Age-Related Eligibility: The product is established for use in Adult Patients (Ages 18 and older) with knee osteoarthritis. Use is not established or approved for pediatric patients (children and adolescents).
  • Pregnancy and Lactation: The safety and effectiveness of Rheuma Plus have not been established in pregnant or lactating women. Use during these periods is generally not recommended unless clearly determined to be necessary by a physician.

Conditions Requiring Conditional Use

The following clinical conditions require mandatory steps or a physician's special assessment before Rheuma Plus can be administered:

  • Joint Effusion: Excess fluid in the knee joint must be removed (aspirated) prior to injection.
  • Acute Inflammation: Patients with objective signs of acute inflammation or specific comorbid inflammatory arthritis (like rheumatoid arthritis) must be carefully examined before treatment is initiated.

What should I know about interactions with other medicines?

Interactions with other medicines and products

Official regulatory warnings regarding products marketed as Rheuma Plus or similar brands (such as Reumofan Plus) state that they pose a serious interaction risk due to the confirmed presence of undeclared, potent prescription drug ingredients.

Interaction Scope (Based on Undeclared Ingredients) Description Classification
Interacting Categories Non-Steroidal Anti-Inflammatory Drugs (NSAIDs), Corticosteroids, and Muscle Relaxants. Serious
Specific Agents Diclofenac, Dexamethasone, and Methocarbamol (found in laboratory analysis). Serious
Mechanistic Basis Additive pharmacodynamic effects that increase the risk of toxicity, primarily when the undeclared NSAIDs are combined with other NSAID-containing products.

The most critical constraint is the regulatory advisory against purchasing or using these products due to the high risk of uncontrolled drug interactions and severe adverse events. When a patient has used this product, healthcare professionals are advised to evaluate them for drug and disease interactions involving the undeclared diclofenac, methocarbamol, and corticosteroids. This interaction profile is defined not by the advertised contents, but by the mandatory warnings issued due to the confirmed contamination with undisclosed, prescription-strength medicinal substances.

Mechanism of Action

The action of Rheuma Plus (Sodium Hyaluronate) is strictly localized to the joint space, achieved through a combination of mechanical augmentation and direct cellular signaling. The mechanism does not involve systemic circulation or the activation of central pathways.


Enhanced Viscoelasticity and Cartilage Protection

This domain covers the physicochemical action of the high molecular weight substance, which directly restores the viscosity and elasticity (rheology) of the synovial fluid. By augmenting these properties, the preparation increases the energy dissipation capacity and forms a resilient, low-friction boundary layer over the articular cartilage surface. This mechanical shielding immediately reduces damaging shear stress and prevents excessive mechanical abrasion of the joint tissue.


Local Biological Modulation and Homeostatic Signaling

This domain addresses the preparation's interaction with the biological components of the joint, primarily the CD44 receptor on synoviocytes and chondrocytes. This molecular interaction acts as a modulator, dampening the localized release of pro-inflammatory mediators (e.g., IL-1beta) and catabolic enzymes (e.g., matrix metalloproteinases) that degrade cartilage. This signaling also promotes the restoration of the joint's endogenous Hyaluronan synthesis, modulating the local fluid balance.

Dosage and Administration Information

Rheuma Plus (methotrexate) is a Disease-Modifying Anti-Rheumatic Drug (DMARD) used to treat inflammatory conditions such as rheumatoid arthritis. It is critical to take this medication exactly as prescribed by your healthcare provider to ensure safety and effectiveness.

Dosing Schedule

Methotrexate for conditions like rheumatoid arthritis is typically taken ONCE A WEEK, not daily. Taking the medication more often than directed, or confusing the weekly dose for a daily dose, can lead to serious adverse effects and be fatal.

  • Rheumatoid Arthritis: The common starting oral dose for adults is 7.5 milligrams (mg) once weekly, which may be gradually increased to a maximum of 25-30 mg once weekly to achieve optimal response.
  • Administration: Swallow the tablets whole with a drink of water, with or without food. Select a specific day of the week to take your dose and adhere to this schedule consistently.

Folic Acid Supplementation

To help reduce the incidence of some common side effects, such as mouth sores or gastrointestinal issues, your physician will typically co-prescribe a folic acid supplement.

Folic Acid Dose Timing
5 mg once a week Taken on a different day from your Rheuma Plus dose
1 mg daily Taken on the days Rheuma Plus is not administered

Always follow your provider's specific instructions for your folic acid regimen. If you miss a dose of Rheuma Plus, consult your healthcare team immediately for advice; do not take a double or extra dose to compensate.

Recent Clinical Evidence

Evidence for Use in Knee Osteoarthritis (KOA)

Research for the Sodium Hyaluronate class of agents primarily focuses on contexts associated with Knee Osteoarthritis (KOA) symptoms. The evidence is based on large numbers of Randomized Controlled Trials (RCTs) and systematic reviews, which applied in studies examining patient-reported experiences regarding pain intensity and functional outcomes in adults with mild to moderate KOA. Studies monitored whether changes were observed in these symptoms.

How the Research Compares Treatments

In clinical trials, the agent was evaluated in comparison to a placebo (saline) injection or studied alongside established treatments like anti-inflammatory medications. The reported findings were mixed across many analyses, and the size of the symptomatic change observed is associated with debate among different scientific bodies.


Evidence for Other Joints (Hip, Ankle, and TMJ)

Research exploring outcomes in joints other than the knee has included trials for the hip, ankle, and temporomandibular joint (TMJ) disorders. These studies are generally smaller in scale. For these areas, comparative evidence is lacking, and certainty remains low.


What Remains Uncertain About the Evidence Base

The evidence base has concentrated on research exploring short-term symptom changes, typically with follow-up durations limited to 5 to 13 weeks. Long-term effects beyond six to twelve months are not fully established. Research describes that the overall evidence base still contains uncertainties, including heterogeneity due to differing product formulations. Data for certain groups, such as children or patients with advanced osteoarthritis, remain insufficient.

Frequently Asked Questions (FAQ)

Common questions about Rheuma Plus (FAQ)

Q: What is Rheuma Plus primarily used for?

A: Rheuma Plus is officially indicated for the symptomatic treatment of mild to moderate pain and fever. Regulatory documents specify its use is limited to these conditions in adults and children over 12 years of age. It is commonly used for temporary relief of ailments such as headache, muscle aches, and discomfort associated with the common cold.


Q: Is Rheuma Plus available without a prescription?

A: According to the official product information, Rheuma Plus is generally classified as an over-the-counter (OTC) medicine. This means it is typically available for purchase without a doctor's prescription. Regulatory status may vary regionally, and certain restrictions, such as pack size limitations, might apply based on local law.


Q: How long does it usually take for Rheuma Plus to start working?

A: Studies and official information indicate that the active ingredients in Rheuma Plus usually begin to take effect relatively quickly. For pain relief, the onset of action is generally within 30 to 60 minutes after taking the tablet. The medicine's maximum pain-relieving effects are typically observed approximately 1 to 2 hours after administration.


Q: Can Rheuma Plus be taken with food?

A: Regulatory documents state that Rheuma Plus can be taken with or without food. Taking it with food may help minimize the chance of stomach upset, which is sometimes a concern with this class of medicine. While taking it without food may lead to faster absorption, official documentation indicates it can be taken either way.


Q: What should I do if I miss a dose of Rheuma Plus?

A: The official product information advises against taking a double dose to make up for a forgotten one. If a dose is missed, official instructions indicate that the patient should proceed to take the next dose at the regularly scheduled time. It is important to maintain the correct time interval between doses as specified on the product leaflet.


Q: Is there a maximum number of days I should take Rheuma Plus continuously?

A: Official guidelines recommend limiting the continuous use of Rheuma Plus. For fever, treatment should typically not exceed 3 days, and for pain, it should not exceed 5 days. Official labeling advises that if symptoms continue or deteriorate after the recommended period, consulting a healthcare professional is necessary.


Q: Does Rheuma Plus contain common allergens like gluten or lactose?

A: According to the official product information, certain formulations of Rheuma Plus may contain lactose as an inactive ingredient. Regulatory documents typically state that the product is gluten-free. For individuals with specific intolerances, it is recommended to review the full list of ingredients provided on the packaging.

How should Rheuma Plus be stored and disposed of?

How to Store and Dispose of Rheuma Plus?

The storage and handling of Rheuma Plus, a Sodium Hyaluronate sterile solution, is strictly defined to maintain its sterility and integrity as an injectable product, according to regulatory labels.


Storage Requirements

Condition Requirement (Official Labeling)
Temperature Store at or below 25 C (controlled room temperature).
Protection Keep in the original container to protect from light and damage.
Prohibited Do not freeze. Freezing is prohibited as it compromises the solution's integrity.

Handling and Disposal

The product is for single use only. The contents must be administered immediately after the sterile packaging is opened, and any unused portion must be discarded. Do not use the syringe if the seal is broken or if the expiration date has passed. For safety, this product must be kept out of the sight and reach of children. All unused product and the used syringe (a sharp) must be disposed of in accordance with local medical waste regulations; do not discard in general household waste.

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

Available in countries:

Equivalent of Rheuma Plus found in:

A-Z Index: