(-)-Bornyl acetate (L-(-)-Bornyl acetate) is a less active enantiomer of (+)-Bornyl acetate. Isolated from hyssop oil, it possesses antifungal, highly active whitening, and antioxidant properties, and it has potential applications in cosmeceutical materials. It downregulates proinflammatory cytokines in vitro and in vivo, reduces the number of total cells, neutrophils, and macrophages in BALF, attenuates histologic lung alterations, decreases the wet-to-dry weight ratio in BALF, and inhibits the activation of NF-kappa-B inhibitor alpha, extracellular regulated protein kinases, c-JunN-terminal kinase, and p38 mitogen-activated protein kinase.

MW-150 (MW01-18-150SRM) is a unique, selective, CNS-penetrant, and orally active inhibitor of p38α MAPK with a Ki of 101 nM.

Bakuchiol possesses anti-tumor,and anti-helmenthic properties. It has cytotoxic activity, mainly due to its DNA polymerase1 inhibiting activity. Bakuchiol has anti-bacterial activity against oral pathogens, has great potential for use in food additives and mouthwash for preventing and treating dental caries.

SB 202190 (FHPI) is a p38 MAPK inhibitor that inhibits p38α and p38β2 (IC50=50/100 nM) selectively and cell-permeably. SB 202190 has antitumor activity and also induces the differentiation of human embryonic stem cells into cardiomyocytes.

Astragaloside IV (AS-IV), an active component isolated from Astragalus membranaceus, suppresses the activation of ERK1/2 and JNK, and downregulates matrix metalloproteases (MMP)-2, (MMP)-9 in MDA-MB-231 breast cancer cells. Astragaloside IV is a bioactive saponin first isolated from the dried plant roots of the genus Astragalus, which is used in traditional Chinese medicine.1 It dose-dependently inhibits human adenovirus type 3 (HAdV-3) in A549 cells (IC50 = 23 μM; LC50 = 865 μM).It inhibits replication of HAdV-3 and decreases HAdV-3-induced apoptosis. It has diverse protective effects for the cardiovascular, immune, digestive, and nervous systems. In particular, it reduces myocardial infarct size in dogs when administered prior to coronary ligation and reduces reperfusion arrhythmias in isolated rat hearts.

Bithionol (Actamer), formerly marketed as an active ingredient in various topical drug products, was shown to be a potent photosensitizer with the potential to cause serious skin disorders. Approvals of the NDA's for bithionol drug products were withdrawn on October 24, 1967.

Doramapimod (BIRB 796) is a highly potent inhibitor of p38 MAPK (Kd: 0.1 nM), but weakly inhibits c-RAF, Fyn, Lck, ERK-1, SYK, IKK2, and ZAP-70.

Exarafenib (RAF/KIN_2787) is a potent, orally available pan-RAF inhibitor with antitumor activity that acts by inhibiting downstream MAPK pathway signaling. It is used in cancer research.