Why Choose Us
Our History
Established in 1970, Zhejiang Haizhou Pharmaceutical Co., Ltd., is a leading pharmaceutical company focusing on specialized pharmaceuticals and fine chemicals
Our Company
The company, located in Yanhai Industrial Zone, one of the largest pharmaceutical industrial zones in China, covers an area of 35 acres
Honor
Haizhou Pharma is ISO9001/14001 and OHSAS18001 approved, and ISO/OHSAS management philosophy deeps into whole process of the company
Production
Moreover, its API production is in line with cGMP standard and approved by NMPA (China FDA), US-FDA and EDQM respectively
Etoricoxib is a nonsteroidal anti-inflammatory drug (NSAID) that specifically targets the cyclooxygenase-2 (COX-2) enzyme, making it a selective COX-2 inhibitor. It is used to treat pain and inflammation associated with conditions like arthritis and acute pain. The synthesis of etoricoxib involves multiple steps and the use of various chemical intermediates.
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4-methylphonylphenylacetic AcidIntermediate:4-methylphonylphenylacetic acid Main Application:Etoricoxib CAS NO:90536-66-6 Availability:By orderread more
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1-(6-methylpyridin-3-yl)-2-[4-(methylthio)phenyl]ethanoneIntermediate:1-(6-methylpyridin-3-yl)-2-[4-(methylthio)phenyl]ethanone Main Application:Etoricoxib CAS NO:221615-72-1 Availability:By orderread more
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1-(6-methyl-3-pyridyl)-2-[4-(methylsulfonyl)-phenyl]ethanoneIntermediate:1-(6-methyl-3-pyridyl)-2-[4-(methylsulfonyl)-phenyl]ethanone Main Application:Etoricoxib CAS NO:221615-75-4 Availability:By orderread more
What Is Etoricoxib Intermediate Used For?
Etoricoxib, also known by its trade name Arcoxia, belongs to a class of medications known as selective COX-2 inhibitors. This drug has garnered interest in both clinical and research settings due to its targeted approach in managing pain and inflammation. Developed and marketed by Merck & Co., Etoricoxib is primarily indicated for the treatment of osteoarthritis, rheumatoid arthritis, chronic low back pain, and acute pain associated with dental surgery. It is also used for conditions like ankylosing spondylitis and gout.
The drug aims to provide relief from pain and inflammation by selectively inhibiting the enzyme cyclooxygenase-2 (COX-2). This selective inhibition is advantageous because it reduces the gastrointestinal side effects commonly associated with non-selective nonsteroidal anti-inflammatory drugs (NSAIDs). The focus on COX-2 inhibition makes Etoricoxib a valuable option for patients who are at risk of gastrointestinal complications from traditional NSAIDs.
Etoricoxib Mechanism of Action
Etoricoxib's mechanism of action revolves around the selective inhibition of the cyclooxygenase-2 (COX-2) enzyme. COX-2 is an inducible enzyme that plays a significant role in the inflammatory response and the production of pain-mediating prostaglandins. Unlike COX-1, which is constitutively expressed and involved in protecting the gastric mucosa and maintaining renal function, COX-2 is typically induced at sites of inflammation.
By selectively inhibiting COX-2, Etoricoxib effectively reduces the synthesis of prostaglandins involved in pain and inflammation. This selective inhibition minimizes the adverse gastrointestinal effects that are common with non-selective NSAIDs, which inhibit both COX-1 and COX-2. Consequently, Etoricoxib provides a more favorable safety profile while delivering effective pain and inflammation relief.
How to Use Etoricoxib
Etoricoxib is administered orally, usually once daily, and can be taken with or without food. The dosage of Etoricoxib varies depending on the condition being treated. For osteoarthritis, a typical dosage is 30 mg to 60 mg once daily. For rheumatoid arthritis, the recommended dosage is 90 mg once daily. For acute gouty arthritis, the dosage is 120 mg once daily for a limited duration, usually up to eight days.
The onset of action for Etoricoxib is relatively rapid, with pain relief typically occurring within 24 to 48 hours of the first dose. However, the full therapeutic effect may take up to a week to be realized, depending on the condition being treated and the patient's response to the medication.
It is essential to follow the dosing instructions provided by a healthcare professional and not to exceed the recommended dose. Long-term use of high doses can increase the risk of cardiovascular events and other adverse effects. Therefore, the lowest effective dose should be used for the shortest duration necessary to manage symptoms.
What is Etoricoxib Side Effects
Like all medications, Etoricoxib can cause side effects, although not everyone experiences them. The most common side effects include:
- Gastrointestinal issues: Nausea, indigestion, abdominal pain, diarrhea, and flatulence.
- Central nervous system effects: Dizziness and headache.
- Respiratory issues: Upper respiratory tract infection.
Before you start taking etoricoxib, read the manufacturer's printed information leaflet from inside the pack. It will give you more information about the tablets, and it will also provide you with a full list of the side-effects which you could experience from taking them.
Take etoricoxib once each day, exactly as your doctor tells you to. There are four strengths of tablet available - 30 mg, 60 mg, 90 mg and 120 mg. You will be prescribed the strength of tablet that suits your condition. People with osteoarthritis are usually prescribed 30 mg once-daily, although the dose can be increased to 60 mg if needed. People with rheumatoid arthritis or ankylosing spondylitis are prescribed 60 mg once-daily, although the dose can be increased to 90 mg if it becomes necessary. If you are taking etoricoxib for gout, you will be prescribed a short course of 120 mg strength tablets to take once-daily for up to eight days.
Swallow the tablet with a drink of water. You can take the tablet either with or without food, although the tablets may work more quickly if they are taken without food.
Try to take your doses at the same time of day each day as this will help you to remember to take them.
If you forget to take the tablet at your usual time, take it as soon as you remember. If you do not remember until the following day, leave out the forgotten dose from the previous day and take the dose that is due as normal. Do not take two doses at the same time to make up for a missed dose.
What Is The Mechanism Of Etoricoxib Intermediate?

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At the center of Etoricoxib’s mechanism is the enzyme cyclooxygenase (COX), which exists in two isoforms: COX-1 and COX-2. Both enzymes are responsible for the conversion of arachidonic acid into prostaglandins, which are lipid compounds that play a crucial role in the mediation of inflammation, pain, and fever. COX-1 is constitutively expressed in most tissues and is involved in maintaining normal cellular functions, such as protecting the stomach lining and regulating blood platelets. On the other hand, COX-2 is inducible and is primarily expressed at sites of inflammation in response to pro-inflammatory stimuli.
Etoricoxib specifically inhibits COX-2, thereby reducing the synthesis of pro-inflammatory prostaglandins. By selectively targeting COX-2, Etoricoxib aims to provide the therapeutic benefits of reducing pain and inflammation while minimizing the gastrointestinal side effects commonly associated with non-selective NSAIDs, which inhibit both COX-1 and COX-2. This selective inhibition is beneficial in reducing the risk of gastrointestinal ulcers and bleeding, a significant concern with long-term NSAID use.
The pharmacokinetics of Etoricoxib contribute to its efficacy. It is well absorbed after oral administration, with a bioavailability of approximately 100%. It reaches peak plasma concentrations within one to two hours. Etoricoxib is extensively metabolized in the liver, primarily by the cytochrome P450 enzyme CYP3A4, and is excreted mainly via the kidneys. The drug has a relatively long half-life, allowing for once-daily dosing, which improves patient compliance.
Clinical studies have shown that Etoricoxib is effective in managing pain and inflammation in various conditions. In osteoarthritis and rheumatoid arthritis, it significantly reduces pain and stiffness, improving joint function and quality of life. In ankylosing spondylitis, it helps alleviate spinal pain and stiffness. Etoricoxib has also been used successfully in managing acute postoperative pain.
However, like all medications, Etoricoxib is not without potential side effects. Common side effects include hypertension, edema, dizziness, and headache. Because it is a selective COX-2 inhibitor, Etoricoxib carries a risk of cardiovascular events, such as myocardial infarction and stroke, particularly with long-term use or in patients with pre-existing cardiovascular conditions. Therefore, it is essential to use Etoricoxib under medical supervision, particularly in patients with cardiovascular risk factors.
Market Size of Etoricoxib Intermediate
Etoricoxib Intermediate Market Trends
The growing demand for this selective COX-2 inhibitor and improvements in pharmaceutical manufacturing are causing major changes in the etoricoxib intermediate market. Key businesses are investing in cutting-edge technology to increase yield and lower costs, with an emphasis on enhancing production efficiency and guaranteeing regulatory compliance. The therapy of chronic pain and the increasing incidence of inflammatory illnesses are also driving manufacturer competition and market growth.
Increasing Focus on Quality and Regulatory Compliance
In the market for etoricoxib intermediates, quality and regulatory compliance are receiving more attention. According to market research, there is an increasing need for suppliers who have strong quality management systems and a track record of adhering to strict regulations. Increased industry scrutiny, worries about patient safety, and the possibility of serious financial and reputational consequences from non-compliance are the main drivers of this trend.
Regional Shifts in Manufacturing and Supply
The production and supply of etoricoxib intermediates are shifting geographically, and this is becoming a significant market trend. Government incentives, labor availability, and cost competitiveness are some of the factors affecting the migration of production facilities. Increased investment is being drawn to areas with robust pharmaceutical production bases and advantageous regulatory frameworks. Asia, especially China and India, appears to be emerging as a major center for the manufacturing of etoricoxib intermediates, according to market research.
Growing Importance of Sustainability and Environmental Impact
There is a growing trend in the market for etoricoxib intermediates towards sustainability. According to market research, customers and pharmaceutical businesses are becoming more conscious of how production practices affect the environment. Demand for sustainable and environmentally friendly production techniques, such as the utilization of renewable energy, waste minimization, and ethical raw material procurement, is rising. Prioritizing sustainability will probably give businesses a competitive edge and draw in eco-aware clients.
Etoricoxib Intermediate Market Scope Of the Report
This report offers past, present as well as future analysis and estimates for the Etoricoxib Intermediate Market. The market estimates that are provided in the report are calculated through an exhaustive research methodology. The research methodology that is adopted involves multiple channels of research, such as – primary research, secondary research, and subject-related expert advice. The market estimates are calculated based on the influence of the current market dynamics along with various economic, social, and political factors on the Etoricoxib Intermediate Market. Also, various regulations, government spending, and research and development growth define the market data. Both positive, as well as negative changes to the market, are taken into consideration for the market estimates.
Etoricoxib Intermediate Market Competitive Landscape
The market report lists the major players involved in the Etoricoxib Intermediate Market under the competitive landscape and company profile chapters. The major players in the market are evaluated based on their product and/or service offerings, financial statements, key developments, strategic approach to the market, position in the market, geographical penetration, and other key features. The chapter also highlights the strengths, weaknesses, opportunities, and threats (SWOT analysis), winning imperatives, current focus and strategies, and threats from competition for the top three to five players in the market. Furthermore, the list of companies included in the market study can also be customized as per the client’s requirements. The competitive landscape section of the report covers details in terms of the top five company’s ranking, key developments such as recent developments, partnerships, mergers and acquisitions, new product launches, etc., the company’s regional footprint, and company industry footprint as per the market and Ace matrix.
Precautions of Etoricoxib Intermediate
Gastrointestinal Effects: An increased incidence of upper gastrointestinal complications which include perforations or ulcers have been reported in patients taking Etoricoxib. Hence, patients who are at risk of developing gastrointestinal complications, or those with a prior history of gastrointestinal diseases should be cautiously prescribed this drug.
Cardiovascular Events: According to clinical studies, Etoricoxib increases the risk of thrombotic events, including myocardial infarction (MI) and stroke. Since Etoricoxib's cardiovascular hazards could rise with dose and exposure length, the shortest duration and lowest effective dose should be used. Patients with comorbidities like hypertension, hyperlipidemia, diabetes mellitus, and smoking should only be treated with Etoricoxib after careful consideration.
Renal Effects: Renal prostaglandins play a major role in maintaining renal perfusion. Therefore, treatment with Etoricoxib may result in a decrease in prostaglandin production and, subsequently, impairment in renal blood flow, impairing renal function in circumstances of reduced renal perfusion. Patients with cirrhosis, uncompensated heart failure, or markedly reduced renal function are at risk for this reaction. In such patients, renal function monitoring should be taken into consideration.
Hepatic Effects: Elevations of alanine aminotransferase (ALT) and aspartate aminotransferase (AST) have been noted in about 1 percent of patients in clinical trials treated for up to one year with Etoricoxib 30, 60, and 90 mg daily. Patients who exhibit symptoms of liver impairment or who have had an abnormal liver function test should be closely monitored. Etoricoxib should be stopped, if symptoms of hepatic insufficiency appear or if persistently abnormal liver function tests (three times the upper limit of normal) are seen.
Our Factory
The company, located in Yanhai Industrial Park, one of the largest pharmaceutical industrial zones in China, covers an area of 35 acres. Through its three product segments - Guaiacol derivatives, Epichlorohydrin derivatives and Iodine contrast media - Haizhou Pharm offers a portfolio of products and services globally, including Active Pharmaceutical Ingredients (API), Intermediates, fine chemicals and Customs manufacturing service.

FAQ
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