THEODRENALINE, a theophylline derivative, is a cardiac stimulant. A 20:1 mixture of cafedrine and THEODRENALINE (AKRINOR®) is widely used in Germany for the treatment of hypotensive states during anesthesia and in emergency medicine.

Peruvoside, main component of neriperside, a tevetoside extracted from Thevitia neriifolia Juss, cardiac glycoside, is used for the treatment of heart failure. It is Na+, K(+)-ATPase inhibitor. Peruvoside also demonstrates anti-cancer activities. Peruvoside inhibited cell growth in androgen-resistant LNCaP-abl prostate at 50 nM, lower than the concentrations required by both Digoxin and Strophanthidin (500 nM), suggesting that it may be a more potent anti-cancer candidate that other CGs. Peruvoside induced apoptotic cell death in human primitive AML KG1a cells and chronic myelogenous leukemia (CML) cell K562.

Acetyldigoxin, a cardiac glycoside that has been studied in patients with congestive heart failure.

Heptaminol is an amino alcohol that has been used as a myocardial stimulant and vasodilator and to relieve bronchospasm. Its most common therapeutic use is in orthostatic hypotension. The mechanism of heptaminol's therapeutic actions is not well understood although it has been suggested to affect catecholamine release or calcium metabolism.

Dimetofrine is a selective agonist of post-synaptic a1-adrenergic receptors. The drug was investigated as a cardiostimulant to treat orthostatic hypotension. Clinical investigation showed that dimetofrine relieves asthenia, paleness, drowsiness, fatigue, headache and other symptoms associated with hypotension. It was observed, that in acidic conditions similar to conditions in the stomach, dimetofrine is able to react with nitrites with the formation of highly mutagenic compound 2,6-dimethoxy-1,4-benzoquinone (DMBQ).

Cymarin (or cymarine or k-strophanthidin-alpha) is a cardiac glycoside and an anti-arrhythmia and cardiotonic agent. Cymarin works as an inhibitor of Na+ /K+-ATPase . This inhibition has an inotropic effect on the cardiac muscles increasing their force by approximately 100%.

Ethacizine (ethacyzine) is a class Ic antiarrhythmic agent, related to moracizine. It is used in Russia and some other Commonwealth of Independent States countries for the treatment of severe and/or refractory ventricular and supraventricular arrhythmias, especially those accompanied by organic heart disease. It is also indicated as a treatment of refractory tachycardia associated with Wolff–Parkinson–White syndrome.

Gitoformate (or pentaformylgitoxin), a kidney independent glycoside, was used in patients with atrial fibrillation and in the treatment of congestive heart failure. Information, that this drug is used now is not available.

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.