MDL 43291 is a competitive leukotriene (LT) receptor antagonist. MDL 43291 antagonize LTD4 and LTE4 with pA2 of 6.7. MDL 43291 does not antagonize histamine, carbachol or substance P. MDL 43291 can be used for the researches of inflammation and immunology, such as asthma.

CGP 57698 is an efficient CysLT receptor (Ki = 5.7 nM) antagonist. CGP 57698 can effectively counteract bronchoconstriction caused by LTD4. CGP 57698 can be used for research on asthma or allergic conditions.

FK-664 is a leukotriene inhibitor. FK-664 enhances ventricular contractility and shortens the time to peak tension in cardiac cells. FK-664 reduces mean circulating pressure (MCP) in a canine model of heart failure. FK-664 can be used in research on cardiovascular diseases such as heart failure.

DS 4574 is an orally active peptidoleukotriene receptor antagonist and mast cell stabilizer. DS 4574 has antiulcer, gastroprotective and antisecretory effects. DS 4574 inhibits various types of experimental asthma models. DS 4574 protects rats from endotoxin-induced intestinal injury.

MEN-91507 is an orally activecysteinyl leukotriene receptor 1 (CysLTR1) receptor antagonist. MEN-91507 behaves as insurmountable antagonist of Leukotriene D4)-induced calcium transients, with a pKb of 10.25. MEN-91507 can inhibit Leukotriene D4-induced bronchoconstriction and microvascular leakage in guinea-pigs. MEN-91507 can be used for the researches of inflammation, immunology.

ONO-2570366 (Compound 11a) is an antagonist of the cysteinyl leukotriene receptors CysLT1R and CysLT2R (IC50 = 14 nM). ONO-2570366 inhibits the binding of LTD4

BRI-12349 (Compound 50) is a dual antagonist of CysLT1R/CysLT2R with Ki values of 1.03 and 6.46 μM. BRI-12349 can inhibit the generation of IP1 induced by LTD4 (the main ligand of CysLTs). BRI-12349 can be used for the research of immunology and inflammation, such as asthma.

NZ-107 is an orally active leukotriene receptor antagonist. NZ-107 can inhibit anaphylaxis reaction. NZ-107 can be used for the researches of inflammation and immunology.

L-695499 is a potent and orally active leukotriene D4 receptor antagonist. L-695499 can be used for the researches of inflammation and immunology.

Montelukast is a potent, selective and orally active antagonist of cysteinyl leukotriene receptor 1 (CysLT1). Montelukast can be used for the reseach of asthma and liver injury. Montelukast also has an antioxidant effect in intestinal ischemia-reperfusion injury, and could reduce cardiac damage.

Zafirlukast(Accolate)

Zafirlukast metabolite M1 (compound 15) is an inhibitor of allergic lung diseases such as asthma and can antagonize the activity of leukotrienes.

T-10430 is a potent and orally active leukotriene B4 receptor 2 (BLT2) agonist. T-10430 has the potential for the research of psoriasis.

Ricinelaidic acid, a 12-hydroxy fatty acid，is a leukotriene B4 (LTB4) receptor antagonist with the Ki of 2 μM in porcine neutrophil membranes. Ricinelaidic acid inhibits chemotaxis and calcium flux induced by LTB4 in isolated human neutrophils (IC50=10 and 7 μM, respectively). Ricinelaidic acid inhibits bronchoconstriction induced by LTB4 in rats.

14,15-Dehydro Leukotriene B4 (Compound 4) is a LTB4 receptor antagonist. 14,15-Dehydro Leukotriene B4 also has a higher binding affinity for BLT1 with a Ki value of 27 nM and BLT2 with a Ki value of 473 nM. 14,15-Dehydro Leukotriene B4 inhibits LTB4-induced release of lysozymes from rat polymorphonuclear leukoctyes with an IC50 value of 1 µM.

MK-571 is a selective, orally active CysLT1 receptor antagonist.

Etalocib (LY293111), an orally active leukotriene B4 receptor antagonist, inhibits the binding of [3H]LTB4, with a Ki of 25 nM. Etalocib (LY293111) prevents LTB4-induced calcium mobilization with an lC50 of 20 nM. Etalocib (LY293111) induces apoptosis.

LY290154 is a leukotriene LTD4/E4 antagonist.

Montelukast belongs to a group of medications known as leukotriene receptor antagonists.

Montelukast (MK0476) dicyclohexylamine is a potent, selective and orally active antagonist of cysteinyl leukotriene receptor 1 (CysLT1). Montelukast dicyclohexylamine can be used for the reseach of asthma and liver injury. Montelukast dicyclohexylamine also has an antioxidant effect in intestinal ischemia-reperfusion injury, and could reduce cardiac damage. Montelukast dicyclohexylamine decreases eosinophil infiltration into the asthmatic airways. Montelukast dicyclohexylamine can also be used for COVID-19 research.

Chamazulene, a natural compound, is an antioxidant-type inhibitor of leukotriene B4 formation.

SR2640 (hydrochloride) is a potent and selective competitive leukotriene D4/leukotriene E4 antagonist. SR2640 can be used for researching the role of leukotrienes in human asthma.

U-75302 is a potent inhibitor of leukotriene B4. U-75302 is a pyridine analogue. U-75302 has the potential for the research of inflammatory diseases.

BAY-u 9773 is a non-selective antagonist of the CysLT receptors (cysteinyl leukotrienes receptors) with about the same IC50 for CysLT1 and CysLT2. BAY-u9773 is used for the inhibition of LT responses.

REV 5901 is a competitive and orally active antagonist of leukotriene receptor, with a Ki of 0.7 μM. REV 5901 is also a 5-lipoxygenase inhibitor. REV 5901 can be used for the research of asthma in which leukotriene release be involved.

Ablukast (Ro 23-3544) is a specific and active leukotriene receptor antagonist. Ablukast effectively reduces LTC4- and antigen-induced bronchoconstriction. Ablukast is LTD4 receptor antagonist.

Verlukast is a potent, selective, and orally active antagonist of leukotriene receptor. Verlukast has the potential for the research of asthma.

Masilukast is an orally administered cysteinyl leukotriene D4 (LTD4) receptor antagonist with potential to treat asthma.

(S)-Verapamil hydrochloride (S(-)-Verapamil hydrochloride) inhibits leukotriene C4 (LTC4) and calcein transport by MRP1. (S)-Verapamil hydrochloride leads to the death of potentially resistant tumor cells.

γ-Linolenic acid ethyl ester (Ethyl γ-linolenate) is a leukotriene B4 receptor 4 (LTB4) antagonist.