The phthalidyl thiazolidine carboxylic ester of ampicillin, talampicillin (Talpen, Beecham), has been introduced recently to improve absorption and to reduce these side effects. After oral administration talampicillin is rapidly absorbed and hydrolysed by tissue esterases in the intestinal wall to release into the circulation ampicillin and the ester moiety, mainly 2-hydroxymethyl-benzoic acid. No unchanged talampicillin is detectable in the peripheral blood. It is not approved by the FDA for use in the United States

Fluoroethylcholine ion F-18 is ethylcholine labeled with fluorine F 18, a positron-emitting isotope. Fluorine F18 fluoroethylcholine incorporates into tumor cells through an active, carrier-mediated transport mechanism for choline and then is phosphorylated intracellularly by choline kinase, yielding a phosphoryl derivative, and finally is integrated into cellular phospholipids, probably primarily into a phosphatidyl derivative; concentration of this agent in tumor cells as various fluorine F 18 fluoroethylcholine derivatives enables tumor imaging using positron emission tomography (PET). Choline kinase, the enzyme responsible for the phosphorylation of choline, is frequently up-regulated in human tumor cell lines. F18-fluoroethylcholine is used for imaging of prostate cancer and brain tumors, mainly in Europe and Japan.

Fluorocholine-F18 is a tracer for positron emission tomography that can be used in oncology for the evaluation of metastatic prostate cancer, hepatocellular carcinoma, and recurrent brain tumor. After crossing the cell membrane by a carrier-mediated mechanism, Fluorocholine-F18 is converted to cytidinediphosphatecholine and incorporated into phosphatidylcholine which is a component of the cell membrane. This process has been found to be upregulated in malignant cells, providing a mechanism for the enhanced accumulation of radiolabelled choline by neoplasms.

Octamylamine is an Antispasmodic. Trademark: Octinum D.

Mifamurtide (liposomal muramyl tripeptide phosphatidylethanolamine; trade name Mepact) is an immunomodulator with antitumor effects that appear to be mediated via activation of monocytes and macrophages. After intravenous administration, mifamurtide is selectively phagocytosed by monocytes and macrophages. Cytosolic Mifamurtide specifically interacts with nucleotide-binding oligomerization domain 2 (NOD2) receptor that induces nuclear factor (NF)-kB activation and is implicated in innate immune defense. Activation of monocyte-mediated tumoricidal function was observed following in vivo treatment with mifamurtide in phase I/II clinical trials. Intravenous administration of mifamurtide inhibited tumor growth and increased survival in rodent models of lung and liver metastasis. In a large, randomized, open-label, multicenter, phase III trial, the addition of adjuvant (postoperative) mifamurtide to three- or four-drug combination chemotherapy (doxorubicin, cisplatin, and high-dose methotrexate with, or without, ifosfamide) was associated with a statistically significant improvement in overall survival in patients with newly diagnosed, high-grade, non-metastatic, resectable osteosarcoma. The pattern of outcome was generally similar in a small cohort of patients with metastatic disease who were enrolled in this trial. Mifamurtide is generally well tolerated; adverse events attributed to administration of the drug include chills, fever, headache, nausea, and myalgias. In the EU, mifamurtide is indicated in children, adolescents, and young adults for the treatment of high-grade, resectable, non-metastatic osteosarcoma after macroscopically complete surgical resection; it is administered by intravenous infusion in conjunction with postoperative multiagent chemotherapy. In the US, mifamurtide is currently an investigational agent that holds orphan drug status for the treatment of osteosarcoma.

cis-Dosulepin is a stereoisomer of Dothiepin (trade name Prothiaden, Dothep, Thaden, and Dopress; Dosulepin (INN, BAN) a tricyclic antidepressant that is used in several European and South Asian countries, as well as Australia, South Africa, and New Zealand. Dosulepin is used for the treatment of the major depressive disorder and neuropathic pain. Dosulepin is only Therapeutic Goods Administration and Medicines and Healthcare products Regulatory Agency approved for the treatment of the major depressive disorder. Dothiepin is not used in the United States. The central action of cis-dosulepin was compared with that of its antidepressant stereoisomer trans-dosulepin, cis-dosulepin exerted weaker anti-reserpine, anti-tetrabenazine, and 3H-5-HT (serotonin) uptake inhibiting actions than trans-dosulepin, but cis-dosulepin's inhibition of 3H-dopamine and 3H-norepinephrine uptake was slightly more potent than that of trans-dosulepin. On the other hand, cis-dosulepin exhibited extremely potent anticholinergic action in oxotremorine induced tremor, isolated ileum and the 3H-quinuclidinyl benzilate binding test. It also showed potent apomorphine enhancing the action and shortened the period of immobility in the forced swimming test in animals.

Thiadrine is a thiazolidine derivative with bronchoconstrictive action. In the 1950s it was marketed in Germany under tradename Priatan for the treatment of asthma.

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.

Levormeloxifene (INN) is an experimental selective estrogen receptor modulator (SERM) that was being developed as an alternative to estrogen replacement therapy for the treatment and prevention of postmenopausal bone loss. Levormeloxifene is the levorotatory enantiomer of non-hormonal, non-steroidal oral contraceptive -- ormeloxifene (trade names Novex-DS, Centron, and Sevista). The development of Levormeloxifene was stopped because of a high incidence of gynecologic adverse events during clinical trials.

Clometocillin, one of the forms of penicillin, was active against pen-I or pen-R pneumococci and was used in children. The modern information about its application is not available.