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.

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.

Bufetolol is a β-adrenergic blocking agent. Bufetolol hydrochloride (a derivative of Bufetolol) is reported as an ingredient of Adobiol in Japan. It is used for the treatment of hypertension and hypertrophic cardiomyopathy.

Cyclopenthiazide is a thiazide diuretic. It inhibits the Na+-Cl− symporter in the distal convoluted tubule of the kidney. Cyclopenthiazide is used for the treatment of edema, including that associated with heart failure, and for the treatment of hypertension.

Clorexolone is a diuretic developed by May & Baker for the treatment of hypertension. The drug was marketed under the name Nefrolan, however its current status is unknown and supposed to be discontinued, at least in Europe.

Azelnidipine (INN; marketed under the brand name CalBlock) is a dihydropyridine calcium channel blocker. It is sold in Japan by Daiichi-Sankyo pharmaceuticals, Inc. Azelnidipine is a new dihydropyridine calcium channel antagonist with selectivity for both L-type and T-type Ca channels. It has recently been approved in Japan for the treatment of patients with hypertension. Results from clinical trials showed that long-term treatment with azelnidipine effectively controls blood pressure (BP) in a cohort of 95 patients with mild-to-moderate hypertension. The antihypertensive efficacy of azelnidipine in patients with mild-to-moderate hypertension was shown to be similar to that of amlodipine or nitrendipine in a randomised double-blind study. Azelnidipine and amlodipine controlled 24-hour BP to a similar extent. Azelnidipine is generally well tolerated. Vasodilator adverse events such as headache and hot facial flushes account for most of the adverse events. Its use is not associated with reflex tachycardia.

There is not much information about benzylhydrochlorothiazide. This compound in combination with another drugs is used to decrease blood pressure and as a diuretic.

Esatenolol is the (S) enantiomer of atenolol, a beta1-adrenergic receptor antagonist. Only (S)-atenolol, but not (R)-atenolol, contributes to the beta-blocking effect of currently used racemic atenolol since the same effect can be elicited with the (S)-enantiomer alone. Pure (S)-atenolol has been launched in India for the treatment of hypertension and angina pectoris.

Cicletanine is a diuretic, developed by Ipsen for the treatment of hypertension. The drug was marketed in France by Recordati under the name Tenstaten. The mechanism(s) by which cicletanine exerts its biological effects has not been definitely established. The salidiuretic activity appears to be the result of an action of the sulfoconjugated metabolite of cicletanine, which inhibits the apical Na+-dependent Cl-/HCO3- anion exchanger in the distal convoluted tubule. The mechanism of the vasodilating effect of cicletanine may include stimulation of vascular prostaglandin synthesis, inhibition of the low Km cyclic GMP phosphodiesterases, and blockade of Ca2+ channels either directly or indirectly. The drug has also been shown to interact with other proteins, including alpha-adrenergic, vascular histamine, and muscarinic receptors.

Riodipine is the blocker of calcium channels of L-type. Riodipine is indicated for the treatment of arterial hypertension, prevention of attacks of angina pectoris. Antiepileptic effect of riodipine was manifested by a decreased frequency and amplitude of interictal discharges and a less frequent appearance of ictal discharges. Riodipine increased latency to first convulsive episodes and delayed the development of generalized tonic-clonic seizures. Detected side effects are: arterial hypotension, tachycardia, hypostasis of shins, increase of a daily urine. Allergic reactions to the drug are possible. Nitrates, tricyclic antidepressants, and other anti-hypertensive drugs are able to potentiate of riodipine effects.