Lorajmine is a monochloracetyl derivative of ajmaline. It is a class Ia antiarrhythmic agent that is rapidly hydrolyzed to ajmaline by plasma and tissue esterases. Lorajmine was used in the clinic to control arrhythmias. It was found that in a significant proportion of cases administration of lorajmine lead to worsening of arrhythmias.

Flumedroxone is a progestative agent. It is a pregnane derivative substituted at C-6 by a trifluoromethyl group. It was tested whether flumedroxone had prophylactic value in migraine. No benefit was found in males, or in females with no history of menstrual exacerbation of migraine. In women whose migraine was worse around the time of menstruation flumedroxone resulted in statistically fewer headaches of less severity. With the dose used in this trial side-effects were frequent, the commonest being polymenorrhagia, which occurred in half the women of reproductive age.

Antimonic acid is an inorganic acid formed by antimony. As an ion-exchange material crystalline antimonic acid may be used for the regeneration of heteropolyacid catalysts. In addition, as a proton conductor, it may be used for gas sensing.

BUTETHAMINE, an ester of the para-aminobenzoic acid, is a local anesthetic formerly used in dentistry. It has diminished toxicity and increased the speed of action as compared with procaine.

METHOPHOLINE, an isoquinoline derivative, is an opioid analgesic drug. Its (R)-enatiomer is approximately six times more potent than codeine, and (S)-enantiomer is inactive. METHOPHOLINE was withdrawn from the market for reasons of safety.

Apalcillin is a naphthydridine derivative of ampicillin. Apalcillin has a broad spectrum of antibacterial activity that is very similar to that of piperacillin, except that apalcillin is significantly more active against Pseudomonas aeruginosa and Acinetobacter spp. Against Acinetobacter spp., apalcillin is uniquely active, compared to the other penicillins and comparison drugs. Strains producing high amounts of β-lactamases do become resistant to apalcillin. PAH (p-aminohippurate) clearance was significantly decreased during apalcillin infusion. Apalcillin appeared to compete with PAH for proximal tubular secretion but induced no further renal dysfunction.

Ciramadol is an opioid agonist-antagonist analgesic with low potential for dependency. Ciramadol appears to be an effective analgesic, with tolerable gastrointestinal central nervous system side effects at both the 30-and 90-mg dose levels. Ciramadol is a mixed agonist-antagonist for the μ-opioid receptor. Side effects might include nausea and vomiting.

Amadione is a steroidal progestogenic antiandrogen. Its anti-androgenic properties were confirmed by blockade of androgen-induced increase in seminal acid phosphatase content.

Dibenzepin is a tricyclic antidepressant of the dibenzo-epine group. It is a selective noradrenaline uptake inhibitor, which exhibits in vitro and in vivo imipramine-like effects. It binds strongly to histamine H1 receptors in the brain and, to a lesser extent, to cholinergic receptors. The pharmacological profile of dibenzepin corresponds widely to its biochemical properties: histamine antagonism, tetrabenazine antagonism, potentiation of various noradrenergic effects and anticholinergic effects. Dibenzepin is only available in European countries for the treatment of depression.

Mecysteine is used as a mucolytic in respiratory disorders associated with productive cough. Mecysteine is known as a mucolytic agent, it breaks down mucus. It works by breaking some of the chemical bonds between the molecules in mucus. It is given orally in a usual dose of 200 mg three times daily before meals reduced to 200 mg twice daily after 6 weeks. A rapid clinical effect can be achieved by giving 200 mg four times daily for the first 2 days. Mecysteine has also been given by inhalation.