A patient with hypertensic crisis was admitted to the cardiological department, he was injected intravenously with an anti- hypertensive drug - salt of an alkaline-earth metal. What drug was injected?

Answer options

1. Benzohexamethonium
2. Magnesium sulfate
3. Sodium hydrocarbonate
4. Potassium chloride
5. Calcium lactate

Explanation

Magnesium sulfate is a drug causing gall bladder contraction and relaxation of the sphincter of Oddi which promotes bile excretion. It is also a salt laxative acting on all intestine's secretions. It is a non-absorbable salt that holds water in the intestine by osmosis and distends the bowel, increasing intestinal activity and producing defecation. It decreases blood pressure due to its dehydration property.