Etozolin is a diuretic used in Europe under the names Diulozin, Elkapin, Etopinil for the treatment of edema and hypertension. The exact mechanism of etozolin action is unknown. The current marketing status of the drug is unavailable and is supposed to be discontinued.

Linsidomine (SIN-1, chemically 3-morpholinosydnonimin), is a vasodilator and antianginal drug. It is the direct hepatic metabolite of molsidomine. The dosage recommended by its manufacturer for its initial purpose, coronary angiography, is 0.4-1 mg. Contrary to molsidomine, which is widely used as an antianginal drug, linsidomine is used only for coronary angiography. The plasma half-life of Linsidomine is about 1 hour. Linsidomine is nonenzymatically metabolized to SIN-1A which spontaneously releases NO. NO, probably released directly from nonadrenergic, noncholinergic (NANC) nerves in the penis, is believed to cause smooth muscle relaxation by stimulating the soluble form of guanylate cyclase leading to an increase of intracellular cyclic guanosine 3',5' monophosphate (cGMP) with subsequent smooth muscle relaxation. Linsidomine also hyperpolarizes the cell membrane, making the smooth muscle less susceptible to adrenergic stimulation. NO further interacts with platelets when released intraluminally causing an increase in cGMP that decreases platelet aggregation and adhesion

Bunaftine is a class III antiarrhythmic agent which has been found effective in treating or preventing both ventricular and supraventricular arrhythmias. The acute electrophysiologic effects of intravenous Bunaphtine 1,5 mg/kg body weight, were studied in 19 subjects with estimated normal impulse formation and conduction. Significant effects were sinus bradycardia, prolongation of atrial refractory periods, depression of intranodal and infranodal conduction and prolongation of His-Purkinje system refractory periods. These properties are compared with those of amiodarone and quinidine and form the basis for correct use of Bunaphtine in the management of arrhythmias

Bucromarone is a coronary vasodilator. It is a compound exhibiting a structural relationship with amiodarone, a widely used antiangorous and antiarrythmic drug. Bucromarone appeared promising in the treatment of cardiac arrhythmia. Bucromarone is rapidly concentrated in the tissues after intravenous administration, and mainly eliminated in the bile. Bucromarone is well absorbed through the gastrointestinal tract after per os administration, but after liver uptake through the portal vein and extensive metabolism, unchanged drug and its metabolites are mainly excreted in the bile. As compared with amiodarone, bucromarone seems more rapidly distributed in the tissues and eliminated from the organs and blood.

Azimilide is a class III antiarrhythmic agent that prolongs cardiac repolarisation by blocking both the rapidly and slowly activating components of the delayed rectifier potassium channel. The most important consequence of this is apparent rate-independent activity, so that, unlike other class III antiarrhythmics, azimilide does not lose efficacy at high heart rates. Azimilide has very predictable pharmacokinetics, is predominantly hepatically metabolized, and has no significant drug interactions with digoxin or warfarin. The most common adverse effects reported by patients on azimilide were approximately equal in frequency with those on placebo: headache, asthenia, infection, diarrhea and dizziness. Azimilide is in phase III clinical trials for the treatment both supraventricular and ventricular tachyarrhythmias.

Efloxate is a coronary vasodilator developed in 1959 in Italy by Recordati and used for the treatment of angina pectoris. The drug is no longer marketed.

Bucainide is a potent cardiac depressant and antiarrhythmic agent. The antiarrhythmic effect was demonstrated in the following animal models: mouse chloroform-induced ventricular arrhythmias, refractory period prolongation in guinea pig isolated atria, aconitine-induced atrial arrhythmias in the dog, ventricular arrhythmias following coronary artery ligation in the dog, and ouabain-induced ventricular tachyarrhythmias in the dog. The drug also possesses local anesthetic effects and is a weak central nervous system depressant. Studies with the radiolabeled drug in rats and dogs also demonstrated the drug's large volume of distribution, and its initial rapid disappearance from the blood. Tissue distribution studies in the rat after administration of the radiolabeled drug showed that bucainide is rapidly taken up by the tissues.

Cloridarol is a vasodilator that was studied for the treatment of coronary insufficiency in Italy in the 1970s. In normolipidemic rats, cloridarol decreased plasma triglycerides without affecting cholesterolemia and fast- or norepinephrine-induced lipolysis. The drug proved effective in reducing fructose-induced hypertriglyceridemia and dietary hypercholesterolemia in rats.

Cafaminol, a nasal decongestant, has been used in the treatment of acute rhinitis in Germany.

Pirmenol is an antiarrhythmic agent, which exhibits effects on the fast action potential similar to other class 1 membrane active antiarrhythmic agents. Pirmenol depresses not only the fast Na+ channel, but also others, such as the slow Ca2+ and K+ channels. Pirmenol had sevenfold lower affinity for glandular-type muscarinic receptors (M3) than for cardiac-type muscarinic receptors (M2). This medicine regulates disturbed pulse by acting on the cardiac muscle. Usually, used for treatment of tachyarrhythmia (ventricular). The most commonly reported adverse reactions include constipation, discomfort in stomach, difficulty in urination (urinary retention), headache, insomnia, bitterness in the mouth, nausea, dry mouth and palpitation. Lidocaine, procainamide and quinidine a greater degree of arrhythmia conversion occurred when dosed 15 min after pirmenol than when these agents were dosed alone.