- Hypersensitivity to the drug;
- Acute myocardial infarction (and within 3 months after);
- cardiogenic shock, collapse;
- unstable angina;
- chronic heart failure of III or IV functional class according to NYHA classification;
- pronounced bradycardia (heart rate less than 50 beats per minute);
- atrioventricular blockade of II and III degree;
- left ventricular failure with low filling pressure;
- arterial hypotension (systolic blood pressure less than 100 mm Hg);
- simultaneous use of phosphodiesterase-5 inhibitors (sildenafil, vardenafil, tadalafil);
- Pregnancy and the period of breastfeeding (see para.section "Application during pregnancy and during breast-feeding");
- age under 18 years (efficiency and safety not established).