Background Sedative-hypnotics are a group of drugs that cause cns depression Benzodiazepines(Bzd) the most commonly a barbiturates used agents nonbarbiturate nonbenzodiazepine sedative hypnotics(NBnB)
Chronic pulmonary heart disease Definition It is directly caused by chronic alterations in pulmonary circulation or chronic chest diseases that lead to pulmonary arterial hypertension, right ventricular enlargement, even right heart failure