Ethyl fumarate is an anti-psoriatic agent. Its salts are used for the treatment of severe psoriasis (Fumaderm formulation). The mechanism of its action is unknown.

Medifoxamine, an antidepressive drug, preferentially inhibits dopamine reuptake. It was marketed in France, but because of the hepatotoxicity, then was withdrawn.

Dimethyl phthalate, an organic compound, is used as repellents. This compound is a pollutant that is very harmful to organisms due to its mutagenicity, teratogenicity and carcinogenicity. It was discovered, that dimethyl phthalate could alter the biological function of the one of the most important bacteria in the environment, P. fluorescens.

Calcium Fumarate is a calcium salt of fumaric acid, it can be used as a food supplement. Calcium Fumarate may be used to treat conditions caused by low Calcium levels such as bone loss (osteoporosis), weak bones (osteomalacia/rickets), decreased activity of the parathyroid gland (hypoparathyroidism), and a certain muscle disease (latent tetany). It may also be used in certain patients to make sure they are getting enough Calcium (e.g., women who are pregnant, nursing, or postmenopausal, people taking certain medications such as phenytoin, phenobarbital, or prednisone). Calcium Fumarate is classified by the FDA as a dietary and nutritional additive (21CFR§172.350) and has been used for many years.

Chlorproguanil is a biguanide. Chlorproguanil is active against P. falciparum and P. malariae. Chlorproguanil acts by inhibition of dihydrofolate reductase after cytochrome P450-catalysed cyclization. Chlorproguanil combined with dapsone was developing for the treatment of falciparum malaria. The anti-malarial combination chloroproguanil and dapsone has been withdrawn following demonstration of post-treatment haemolytic anaemia in glucose-6-phosphate dehydrogenase (G6PD) deficient patients in a phase III clinical trial.

3-Aminopropionitrile (Beta-amino-propionitrile, BAPN) is a toxic constituent from lathyrus plants. BAPN found in lathyrus odoratus (our more common garden sweet pea plant) is thought to be responsible for osteolathyrism due to irreversible inhibition of lysyl oxidase (LOX), an enzyme necessary for the covalent cross-linking of tropocollagen molecules during the maturation of mature collagen. BAPN demonstrated in antimetastatic and antimyelofibrotic activity in vivo due to inhibition of LOX.