A patient with myocardial infarction has acute heart failure. Among the drugs that increase the force of heart contractions the least dangerous in this case will be:

Answer options

1. Euphyllin (Aminophylline)
2. Adrenaline
3. Caffeine
4. Isadrinum (Isoprenaline)
5. Dobutamine

Explanation

Dobutamine is a selective beta-1 agonist, therefore it is the least dangerous. Beta- 1 receptors are located in the heart, when they are stimulated, they increase heart rate and heart contractions.