Clinical data | |
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Trade names | Azulfidine, Salazopyrin, Sulazine, others |
Other names | Sulphasalazine, SSZ |
AHFS/Drugs.com | Monograph |
MedlinePlus | a682204 |
License data | |
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Routes of administration | By mouth |
Drug class | Sulfonamides |
ATC code | |
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Pharmacokinetic data | |
Bioavailability | <15% |
Elimination half-life | 5-10 hours |
Excretion | drug metabolites are excreted in urine and feces [4] |
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ChEMBL | |
CompTox Dashboard (EPA) | |
ECHA InfoCard | 100.009.069 |
Chemical and physical data | |
Formula | C18H14N4O5S |
Molar mass | 398.39 g·mol−1 |
3D model (JSmol) | |
Melting point | 240 to 245 °C (464 to 473 °F) (dec.) |
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Sulfasalazine, sold under the brand name Azulfidine among others, is a medication used to treat rheumatoid arthritis, ulcerative colitis, and Crohn's disease. [5] It is considered by some to be a first-line treatment in rheumatoid arthritis. [6] It is taken by mouth or can be administered rectally. [5]
Significant side effects occur in about 25% of people. [6] Commonly these include loss of appetite, nausea, headache, and rash. [5] Severe side effects include bone marrow suppression, liver problems, Stevens–Johnson syndrome, and kidney problems. [6] [7] [4] It should not be used in people allergic to aspirin or sulfonamide. [6] Use during pregnancy appears to be safe for the baby. [5]
Sulfasalazine is in the disease-modifying antirheumatic drugs (DMARDs) family of medications. [5] It is unclear exactly how it works. [5] One proposed mechanism is the inhibition of prostaglandins, resulting in local anti-inflammatory effects in the colon. [4] The medication is broken down by intestinal bacteria into sulfapyridine and 5-aminosalicylic acid. [5]
Sulfasalazine was approved for medical use in the United States in 1950. [5] It is on the World Health Organization's List of Essential Medicines. [8] Sulfasalazine is available as a generic medication. [5] In 2020, it was the 284th most commonly prescribed medication in the United States, with more than 1 million prescriptions. [9] [10]
Sulfasalazine is used in the treatment of inflammatory bowel disease, including ulcerative colitis and Crohn's disease. It is also indicated for use in rheumatoid arthritis and used in other types of inflammatory arthritis (e.g. psoriatic arthritis and reactive arthritis). [11] [3] [2]
It is usually not given to children under two years of age. [3] [2]
Use of sulfasalazine is contraindicated in people with sulfa allergies and in those with urinary tract obstructions, intestinal obstructions, and severe liver or kidney problems. [4]
Sulfasalazine metabolizes to sulfapyridine. Serum levels should be monitored every three months, and more frequently at the outset. Serum levels above 50 μg/L are associated with side effects. In rare cases, sulfasalazine can cause severe depression in young males. It can also cause oligospermia and temporary infertility. Immune thrombocytopenia has been reported. [12]
Sulfasalazine inhibits dihydropteroate synthase, and can cause folate deficiency and megaloblastic anemia. [13] [14] [15] and various other undesirable effects. [16]
Sulfasalazine can cause hemolytic anemia in people with G6PD deficiency. [17]
Sulfasalazine can cause kidney stones. [18] Sulfasalazine may cause stomach upset, nausea, vomiting, loss of appetite, headache, dizziness, or unusual tiredness. [5] Skin and urine can become orange, with occasional allergic reactions. [19] [5]
Sulfasalazine may cause sulfhemoglobinemia.[ citation needed ]
Around 90% of a dose of sulfasalazine reaches the colon, where most of it is metabolized by bacteria into sulfapyridine and mesalazine (also known as 5-aminosalicylic acid or 5-ASA). Both metabolites are active; most of the sulfapyridine is absorbed and then further metabolized, but most mesalazine is not, and remains in the colon. [3]
A mix of unchanged, hydroxylated, and glucuronidated sulfapyridine is eliminated in urine, as is acetylated mesalazine and unmetabolized sulfasalazine. [3] [2]
The mechanism of action is not clear, but it appears that sulfasalazine and its metabolites have immunosuppressive, antibacterial, and anti-inflammatory effects. [11] [3] It also appears to inhibit the cystine-glutamate antiporter, [20] as well as sepiapterin reductase. [21]
It is a codrug which is a combination of sulfapyridine and 5-aminosalicylic acid coupled with an azo linkage.
In people with rheumatoid arthritis, the cost-effectiveness of sulfasalazine is improved by combining it with other drugs. [22] It is commonly used in treating inflammatory bowel disease in part due to its cost effectiveness. [23]
Sulfasalazine has been studied in cirrhosis, [24] psoriasis, [25] idiopathic urticaria, [26] and amyloidosis. [27]
Non-steroidal anti-inflammatory drugs (NSAID) are members of a therapeutic drug class which reduces pain, decreases inflammation, decreases fever, and prevents blood clots. Side effects depend on the specific drug, its dose and duration of use, but largely include an increased risk of gastrointestinal ulcers and bleeds, heart attack, and kidney disease.
Ulcerative colitis (UC) is one of the two types of inflammatory bowel disease (IBD), with the other main type being Crohn’s disease. It is a long-term condition that results in inflammation and ulcers of the colon and rectum. The primary symptoms of active disease are abdominal pain and diarrhea mixed with blood (hematochezia). Weight loss, fever, and anemia may also occur. Often, symptoms come on slowly and can range from mild to severe. Symptoms typically occur intermittently with periods of no symptoms between flares. Complications may include abnormal dilation of the colon (megacolon), inflammation of the eye, joints, or liver, and colon cancer.
Methotrexate (MTX), formerly known as amethopterin, is a chemotherapy agent and immune-system suppressant. It is used to treat cancer, autoimmune diseases, and ectopic pregnancies. Types of cancers it is used for include breast cancer, leukemia, lung cancer, lymphoma, gestational trophoblastic disease, and osteosarcoma. Types of autoimmune diseases it is used for include psoriasis, rheumatoid arthritis, and Crohn's disease. It can be given by mouth or by injection.
Infliximab, a chimeric monoclonal antibody, sold under the brand name Remicade among others, is a medication used to treat a number of autoimmune diseases. This includes Crohn's disease, ulcerative colitis, rheumatoid arthritis, ankylosing spondylitis, psoriasis, psoriatic arthritis, and Behçet's disease. It is given by slow injection into a vein, typically at six- to eight-week intervals.
Azathioprine, sold under the brand name Imuran, among others, is an immunosuppressive medication. It is used for the treatment of rheumatoid arthritis, granulomatosis with polyangiitis, Crohn's disease, ulcerative colitis, and systemic lupus erythematosus; and in kidney transplants to prevent rejection. It is listed by the International Agency for Research on Cancer as a group 1 human carcinogen. It is taken by mouth or injected into a vein.
Colitis is swelling or inflammation of the large intestine (colon). Colitis may be acute and self-limited or long-term. It broadly fits into the category of digestive diseases.
Mesalazine, also known as mesalamine or 5-aminosalicylic acid (5-ASA), is a medication used to treat inflammatory bowel disease, including ulcerative colitis and Crohn's disease. It is generally used for mildly to moderately severe disease. It is taken by mouth or rectally. The formulations which are taken by mouth appear to be similarly-effective.
4-Aminosalicylic acid, also known as para-aminosalicylic acid (PAS) and sold under the brand name Paser among others, is an antibiotic primarily used to treat tuberculosis. Specifically it is used to treat active drug resistant tuberculosis together with other antituberculosis medications. It has also been used as a second line agent to sulfasalazine in people with inflammatory bowel disease such as ulcerative colitis and Crohn's disease. It is typically taken by mouth.
An aminosalicylate is a class of medications that is often used to treat ulcerative colitis and Crohn's disease. The class includes among others:
Balsalazide is an anti-inflammatory drug used in the treatment of inflammatory bowel disease. It is sold under the brand names Giazo, Colazal in the US and Colazide in the UK. It is also sold in generic form in the US by several generic manufacturers.
A TNF inhibitor is a pharmaceutical drug that suppresses the physiologic response to tumor necrosis factor (TNF), which is part of the inflammatory response. TNF is involved in autoimmune and immune-mediated disorders such as rheumatoid arthritis, ankylosing spondylitis, inflammatory bowel disease, psoriasis, hidradenitis suppurativa and refractory asthma, so TNF inhibitors may be used in their treatment. The important side effects of TNF inhibitors include lymphomas, infections, congestive heart failure, demyelinating disease, a lupus-like syndrome, induction of auto-antibodies, injection site reactions, and systemic side effects.
Management of ulcerative colitis involves first treating the acute symptoms of the disease, then maintaining remission. Ulcerative colitis is a form of colitis, a disease of the intestine, specifically the large intestine or colon, that includes characteristic ulcers, or open sores, in the colon. The main symptom of active disease is usually diarrhea mixed with blood, of gradual onset which often leads to anaemia. Ulcerative colitis is, however, a systemic disease that affects many parts of the body outside the intestine.
Biological therapy, the use of medications called biopharmaceuticals or biologics that are tailored to specifically target an immune or genetic mediator of disease, plays a major role in the treatment of inflammatory bowel disease. Even for diseases of unknown cause, molecules that are involved in the disease process have been identified, and can be targeted for biological therapy. Many of these molecules, which are mainly cytokines, are directly involved in the immune system. Biological therapy has found a niche in the management of cancer, autoimmune diseases, and diseases of unknown cause that result in symptoms due to immune related mechanisms.
Ustekinumab, sold under the brand name Stelara among others, is a monoclonal antibody medication developed by Janssen Pharmaceuticals, for the treatment of Crohn's disease, ulcerative colitis, plaque psoriasis and psoriatic arthritis, targeting both IL-12 and IL-23.
Golimumab, sold under the brand name Simponi, is a human monoclonal antibody which is used as an immunosuppressive medication. Golimumab targets tumor necrosis factor alpha (TNF-alpha), a pro-inflammatory molecule and hence is a TNF inhibitor. Profound reduction in C-reactive protein (CRP) levels, interleukin (IL)-6, intercellaular adhesion molecules (ICAM)-1, matrix metalloproteinase (MMP)-3, and vascular endothelial growth factor (VEGF) demonstrates golimumab as an effective modulator of inflammatory markers and bone metabolism. Golimumab is given via subcutaneous injection.
Tofacitinib, sold under the brand Xeljanz among others, is a medication used to treat rheumatoid arthritis, psoriatic arthritis, ankylosing spondylitis, polyarticular course juvenile idiopathic arthritis, and ulcerative colitis. It is a janus kinase (JAK) inhibitor, discovered and developed by the National Institutes of Health and Pfizer.
Filgotinib, sold under the brand name Jyseleca, is a medication used for the treatment of rheumatoid arthritis (RA). It was developed by the Belgian-Dutch biotech company Galapagos NV.
Upadacitinib, sold under the brand name Rinvoq, is a medication used for the treatment of rheumatoid arthritis, psoriatic arthritis, atopic dermatitis, ulcerative colitis, Crohn's disease, ankylosing spondylitis, and axial spondyloarthritis. Upadacitinib is a Janus kinase (JAK) inhibitor that works by blocking the action of enzymes called Janus kinases. These enzymes are involved in setting up processes that lead to inflammation, and blocking their effect brings inflammation in the joints under control.
Janus kinase 3 inhibitors, also called JAK3 inhibitors, are a new class of immunomodulatory agents that inhibit Janus kinase 3. They are used for the treatment of autoimmune diseases. The Janus kinases are a family of four nonreceptor tyrosine-protein kinases, JAK1, JAK2, JAK3, and TYK2. They signal via the JAK/STAT pathway, which is important in regulating the immune system. Expression of JAK3 is largely restricted to lymphocytes, while the others are ubiquitously expressed, so selective targeting of JAK3 over the other JAK isozymes is attractive as a possible treatment of autoimmune diseases.
An antiarthritic is any drug used to relieve or prevent arthritic symptoms, such as joint pain or joint stiffness. Depending on the antiarthritic drug class, it is used for managing pain, reducing inflammation or acting as an immunosuppressant. These drugs are typically given orally, topically or through administration by injection. The choice of antiarthritic medication is often determined by the nature of arthritis, the severity of symptoms as well as other factors, such as the tolerability of side effects.
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