DIMEFLINE is a pneumokinetic and respiratory stimulant. It has been used for the treatment of respiratory insufficiency. The mechanism of action is unknown.

Biphenamine is a local anesthetic with antibacterial and antifungal properties. It has been used in the treatment of seborrheic scalp disorders.

Aceclidine is a parasympathomimetic agent used in the treatment of open-angle glaucoma as topical eye drop solution. It is as a muscarinic acetylcholine receptor agonist with weak anticholinesterase activity. Acting directly on the motor end-plate (cholinergic nerve endings) it decreases intraocular pressure and mediates the contraction of iris muscle. Aceclidine increased outflow facility in human eyes in vitro by a direct stimulation of the outflow tissues in the absence of an intact ciliary muscle. This effect was biphasic, occurring at concentrations of 10 uM and lower with no effect at higher concentrations. Passed numerous clinical trials in Russia, France, Italy and other countries and was widely used in Europe but never been in clinical use in USA.

Adatanserin is an adamantyl piperazine derivative a partial agonist of 5-HT1A receptors and antagonist of 5-HT2A and 5-HT2C receptors. Adatanserin demonstrated activity in vivo in rat serotonin syndrome, quipazine- and DOI-induced head shake experiments, and anxiolytic activity in animal conflict model. It was developed by Wyeth for the treatment of depression. The compound was investigated in phase II clinical trials in anxiety disorders and major depressive disorders, but no results were reported, and the development of adatanserin was discontinued.

Amperozide (FG 5606, N-ethyl-4-[4',4'-bis(p-fluorophenyl)butyl]-1-piperazine-carboxamide) is an atypical antipsychotic drug which has relatively weak in vitro affinity for striatal dopamine2 (D2) receptors and a strong affinity for the cortical 5-HT2A receptor. It was shown in animal models, that amperozide could attenuate craving for cocaine. In addition, this drug was studied in patients with schizophrenia and was shown, that several patients had improvements as was assessed by the Clinical Global Improvement Scale. However, these studies were discontinued.

Hexoprenaline is a selective beta2-adrenoreceptor agonist indicated for use in the treatment of bronchospasm associated with obstructive airways diseases, including asthma, bronchitis and emphysema. In many countries the drug is used as tocolytic agent (under the trade name gynipral).

Reboxetine is a selective noradrenergic reuptake inhibitor that acts by binding to the norepinephrine (NE) transporter and blocking reuptake of extracellular NE back into terminals. This compound has low affinity for other transporters and receptors. Reboxetine is used in acute treatment of depressive illness / major depression. Very common side effects are: difficulties to sleep (insomnia); dizziness; dry mouth; constipation; nausea (feeling sick); sweating. Based on studies conducted primarily outside the US, the FDA granted a preliminary letter of approval in 1999. However, more recent clinical studies conducted in the US and Canada, prompted by the FDA, resulted in a letter of non-approval.

Bietamiverine is an antispasmodic agent.

Oxitropium bromide (trade names Oxivent, Tersigan) is a bronchodilator indicated for asthma and chronic obstructive pulmonary disease. Oxitropium’s bronchodilation effect is similar to that of ipratropium bromide, but oxitropium is longer-lasting. The usual dose is 200 ug, 2–3 times daily. It blocks the muscarinic cholinergic receptors which mediate smooth muscle contraction in the airways. The manufacturer claims that regular use of oxitropium (200μg twice or three times daily) reduces the incidence of symptoms, including the need for night-time bronchodilators, and improves lung function in some patients; it is not intended for immediate symptom relief. Although widely used for many years (alone or in combination with short-acting beta agonists) for both maintenance treatment of stable disease and exacerbation of airway obstruction, Boehringer Ingelheim announced the discontinuation of Oxivent formulations at May 2004.

Nefopam (nefopam hydrochloride) is a potent, rapidly-acting non-narcotic analgesic. It is totally distinct from other centrally-acting analgesics such as morphine, codeine, pentazocine and propoxyphene. Unlike the narcotic agents, nefopam (nefopam hydrochloride) has been shown not to cause respiratory depression. It is indicated for the relief of acute and chronic pain, including post-operative pain, dental pain, musculo-skeletal pain, acute traumatic pain and cancer pain. Its mechanism of action is unclear.