Eberconazole is an antifungal drug with broad antimicrobial spectrum of activity. The drug was developed and approved in Spain (Ebernet 1% cream) for the treatment of tinea. Eberconazole exerts fungicidal or fungistatic activity depending on concentration, being fungicidal at higher concentration and fungistatic at lower concentrations. Eberconazole prevents fungal growth by inhibiting ergosterol synthesis, an essential component of the fungal cytoplasmic membrane leading to structural and functional changes. It prevents the fungal ergosterol synthesis by inhibiting lanosterol 14alpha-demethylase enzyme that is responsible for the formation of 14 alpha-methylsterols (precursor of ergosterols).

Oral dehydroemetine dihydrochloride (+/-) (Mebadin) was found useful both as a tissue and contact amoebicide. It is much less toxic and more active than emetine and can be given in larger doses and for longer periods with safety. Owing to the quick excretion, repeat courses can be given at short intervals, as necessary, without danger. No serious side effects were noted particularly with the oral form and it was far better tolerated by children, who received relatively higher dosage than most adults. The only contra-indication is for patients with manifest decompensation of vital organs, or fevers. Mebadin injection and Mebadin tablets are discontinued products.

Cilazapril (Vascace and Dynorm are brand names in a number of European countries) is an angiotensin converting enzyme (ACE; kininase II) inhibitor. It competes with angiotensin I for binding at the angiotensin-converting enzyme, blocking the conversion of angiotensin I to angiotensin II. Cilazapril is a prodrug that is hydrolyzed after absorption to its main metabolite cilazaprilat. The half-life (30–50 hours) of cilazapril allows for once daily dosing unless the hypertension is severe. Cilazapril is used for the treatment of hypertension, congestive heart failure, post-myocardial infarction, and some other indications. Adverse events were mostly observed within the first 8-16 weeks of treatment, with headache, dizziness, fatigue, nausea, cough and chest pain being the most frequent.

Fenoterol is a beta2-adrenoreceptor agonist, used as a bronchodilator for the treatment and prevention of bronchospasms, associated with asthma and chronic obstructive airway disease, including bronchitis and pulmonary emphysema. Fenoterol is also used for tocolysis during premature labor. Marketing of fenoterol for treatment of asthma was suspended in Australia and New Zealand because of an increased risk of deaths, most likely due to excessive self-administration of the drug.

Amitriptylinoxide (amitriptyline N-oxide, Amioxid, Ambivalon) is a tricyclic antidepressant, which was introduced in Europe in the 1970s for the treatment of depression. Amitriptylinoxide (AMINO) produces similar effects to the drug Amitriptyline (AMI), which makes sense because it is a metabolite of Amitriptyline. AMINO and AMI potentiate the depletion of 5-hydroxytryptamine (5-HT) induced by p-chloroamphetamine in the rat brain and it may be considered as evidence that both drugs do not inhibit 5-HT uptake in vivo. Neither AMINO nor AMI affects the rat brain level of 5-HT but at higher doses they elevate the 5-hydroxy-indoleacetic acid concentrations. AMINO antagonizes the head twitch reaction induced by 5-hydroxytryptophan in mice and tryptamine convulsions in rats. The hyperthermia induced by fenfluramine (in rats at a high ambient temperature) as well as the stimulation of the hind limb flexor reflex in spinal rats, induced by fenfluramine or LSD, are also inhibited. AMINO antagonizes the 5-HT-induced increase in blood pressure in pithed rats. All the above effects are similar to those induced by AMI, only the active doses of AMINO are higher. The results presented indicate that AMINO, like AMI, inhibits NA uptake and is a 5-HT antagonist. Amitriptylinoxide is considered to work more quickly with fewer side effects than Amitriptyline and is regarded as being equal in terms of efficacy. The way the drug works is nearly identical to Amitriptyline, except it affects the Alpha-1 receptors to a significantly lesser extent (60x less) and has among the weakest effects on acetylcholine receptors. Half maximal inhibition of acetylcholine receptor binding occurred for amitriptylinoxide at 18 mumol/l (amitriptyline: 0.32 mumol/l). Comparing all studied antidepressants for muscarinic acetylcholine receptor binding, amitriptylinoxide had the weakest affinity of all tested tricyclic compounds. Also the affinity of amitriptylinoxide for alpha-receptor binding was about 60 fold less than that of amitriptyline. For all antidepressants investigated, the lowest affinities were found for benzodiazepine, opiate and beta-receptor binding. The weak affinities of amitriptylinoxide for various receptors may be responsible for its reduced side-effects, while it still retains potent antidepressant properties by stabilising the amitriptyline-level in the brain.

Tetrandrine, isolated from the root of Stephania tetrandra S Moore, is a traditional Chinese clinical agent for silicosis, autoimmune disorders, inflammatory pulmonary diseases, cardiovascular diseases and hypertension. Tetrandrine is a potent MDR-reversing agent and is an ABCB1/ABCC1 inhibitor. Tetrandrine (CBT-1) is being developed by CBA Pharma, as an adjunctive therapy to chemotherapy in various cancer types with multiple drug resistance (MDR), including acute myelogenous leukemia , Breast, Non-Hodgkin’s Lymphoma, Hodgkin’s disease, Non-Small Cell Lung Cancer, Multiple Myeloma, Gallbladder, Pancreatic, Gastrointestinal Tract, Small Cell Lung Cancer, Bladder, Head & Neck, and Sarcoma.

Mianserin is a tetracyclic antidepressant used for the treatment of depression. It was investigated as an adjuvant for reduction of negative and cognitive symptoms of schizophrenia, as an aid for opioid detoxification therapy (where it reduced symptoms but lead to higher drop-out rate), and for the treatment of post-traumatic stress disorder (where it was ineffective). Mianserin has a broad spectrum of activity with the most potent binding to 5-HT2A, 5-HT2C, H1, alpha2A and alpha2C receptor.

Beclabuvir (previously known as BMS-791325), a potent, non-nucleoside inhibitor of the HCV NS5B RNA polymerase. In combination with daclatasvir and asunaprevir drug participates in clinical trials phase III for patients infected with HCV genotype 1, which is the most common genotype worldwide. Recently published data has shown that this combination achieved very high rates of viral eradication.