Epinephrine is a sympathomimetic catecholamine. It acts as a naturally occurring agonist at both alpha and beta-adrenergic receptors. Three pharmacologic types have been identified: alpha 1-, alpha 2-, and beta-adrenergic receptors. Each of these has three subtypes, characterized by both structural and functional differences. The alpha 2 and beta receptors are coupled negatively and positively, respectively, to adenylyl cyclase via Gi or Gs regulatory proteins, and the alpha 1 receptors modulate phospholipase C via the Go protein. Subtype expression is regulated at the level of the gene, the mRNA, and the protein through various transcriptional and postsynthetic mechanisms. Through its action on alpha-adrenergic receptors, epinephrine lessens the vasodilation and increased vascular permeability that occurs during anaphylaxis, which can lead to loss of intravascular fluid volume and hypotension. Through its action on beta-adrenergic receptors, epinephrine causes bronchial smooth muscle relaxation and helps alleviate bronchospasm, wheezing and dyspnea that may occur during anaphylaxis. Epinephrine also alleviates pruritus, urticaria, and angioedema and may relieve gastrointestinal and genitourinary symptoms associated with anaphylaxis because of its relaxer effects on the smooth muscle of the stomach, intestine, uterus and urinary bladder. Epinephrine increases glycogenolysis, reduces glucose up take by tissues, and inhibits insulin release in the pancreas, resulting in hyperglycemia and increased blood lactic acid.

Aspirin is a nonsteroidal anti-inflammatory drug. Aspirin is unique in this class of drugs because it irreversibly inhibits both COX-1 and COX-2 activity by acetylating a serine residue (Ser529 and Ser516, respectively) positioned in the arachidonic acid-binding channel, thus inhibiting the synthesis of prostaglandins and reducing the inflammatory response. The drug is used either alone or in combination with other compounds for the treatment of pain, headache, as well as for reducing the risk of stroke and heart attacks in patients with brain ischemia and cardiovascular diseases.

Methyl salicylate (or methyl 2-hydroxybenzoate), also known as wintergreen oil, is a natural product and is present in white wine, tea, porcini mushroom Boletus edulis, Bourbon vanilla, clary sage, red sage and fruits including cherry, apple, raspberry, papaya and plum. Methyl salicylate is topically used in combination with methanol and under brand name SALONPAS to temporarily relieves mild to moderate aches and pains of muscles and joints associated with: strains, sprains, simple backache, arthritis, bruises. The precise mechanism of action of methyl salicylate is not known, but there is suggested, that it cause dilation of the capillaries thereby increasing blood flow to the area.

Methyl salicylate (or methyl 2-hydroxybenzoate), also known as wintergreen oil, is a natural product and is present in white wine, tea, porcini mushroom Boletus edulis, Bourbon vanilla, clary sage, red sage and fruits including cherry, apple, raspberry, papaya and plum. Methyl salicylate is topically used in combination with methanol and under brand name SALONPAS to temporarily relieves mild to moderate aches and pains of muscles and joints associated with: strains, sprains, simple backache, arthritis, bruises. The precise mechanism of action of methyl salicylate is not known, but there is suggested, that it cause dilation of the capillaries thereby increasing blood flow to the area.

Monophosphothiamine is thiamine derivative used for the treatment of neuritis, polyneuritis, asthenic conditions (weakness), as an additional remedy for chronic blood circulation insufficiency, chronic gastritis accompanied by motor and secretory disorders functions of the stomach. Monophosphothiamine underwent metabolic phosphorylation to active metabolite thiamine pyrophosphate, that acts as a coenzyme in the different metabolic process.

Beclotiamine (or chloroethyl thiamine) had been studied for veterinary and showed anticoccidial activity against Eimeria tenella, although metabolites and related substances were inactive. Information about the nowadays application of this compound is not available.

PX-102 is a methoxyphenylcyclopropane derivative patented by Phenex Pharmaceuticals AG as Farnesoid X receptor agonists useful in the treatment and prophylaxis of FXR-mediated diseases. The Farnesoid X Receptor (FXR) is a bile acid receptor which when activated by Px-102 has a profound positive impact on cholesterol, triglyceride and glucose metabolism in liver and intestine. In preclinical studies, Px-102 potently reduces intestinal uptake of neutral lipids and cholesterol and at the same time enhances the excretion of these lipid species. In addition, Px-102 improves hepatic insulin sensitivity and shows massive hepatoprotective effects in animal models of liver cirrhosis or fibrosis. Phenex Pharmaceuticals completes a phase I trial in Healthy volunteers in Germany in 2012 and no further development report has been published.

GSK-2269557 (nemiralisib), a PI3Kδ inhibitor, is in development as an anti-inflammatory drug for the treatment of inflammatory airways disease. Studies in moderate or severe stable COPD patients have shown an acceptable safety and tolerability profile when GSK-2269557 was administered via inhalation. Cough was the most commonly reported adverse event.

Transcrocetinate (TSC) is a novel compound that offers promise as a treatment for conditions caused by hypoxia or ischemia. Unlike crocetin, it worked well in the more severe hemorrhagic shock model. Although many of the earlier studies with TSC involved the treatment of the ischemic conditions of hemorrhagic shock in both rats and swine, a few other studies involved treating purely hypoxic situations. One study showed that TSC was capable of promoting survival in rats breathing 10% oxygen. TSC also was able to increase arterial PO2 values in a rat model of acute respiratory distress syndrome (ARDS) caused by injection of oleic acid. The drug acts via a mechanism that has not been previously exploited in a pharmaceutical. TSC increases the rate of oxygen diffusion between the erythrocytes and the tissues by altering the 'structure' of water in blood plasma. It does this by causing additional hydrogen bonds to form among the water molecules. Animal toxicology studies have demonstrated that high levels of TSC are well-tolerated, and a Phase I clinical study has shown that TSC is also safe in humans. Delayed TSC treatment improves outcomes in experimental models of both ischemic and hemorrhagic stroke. TSC may be a safe and beneficial therapeutic modality for early stroke intervention, irrespective of the type of stroke involved. Transcrocetinate is in phase III clinical trial for the treatment of glioblastoma.