Question

Medicine for respiratory problems is got from
(A) Calotropis
(B) Eucalyptus
(C) Ephedra
(D) Cannabis

Answer 1

Hint :Respiratory diseases are caused due to infections like influenza, enterovirus or bacterial pneumonia. The diseases can also be chronic like asthma, obstructive pulmonary diseases etc. The medicine which treats respiratory problems should have the capacity to dilate bronchioles and also generate heat.

Complete Step By Step Answer:
To solve this question, we must know about the medicines extracted from the plants given in the question.
Calotropis- It is a flowering plant commonly called as milkweed. The latex produced from this plant is a potent corrosive poison. These extracts have a strong cytotoxic property. The latex or the milk is harmful for eyes.
Eucalyptus- It is a species of flowering plant which finds wide application. The oil is extracted from the flower of Eucalyptus. This oil has potential medicinal benefits like it is used as an antimicrobial agent, cure cough, congestion, cold. Also, it is used for treating body ache. It is also used as a fuel and as an insect repellent.
Ephedra-It is a gymnosperm shrub. Ephedrine is extracted from Ephedra which is a prescribed medicine for treating low blood pressure. It is an Alpha/Beta Adrenergic Agonist which is potentially used in treating allergies, hay fever, respiratory tract disorders like asthma, bronchitis, bronchospasm, nasal congestion etc.
Cannabis- It is also known as marijuana which is used as a psychoactive drug. It contains a chemical called cannabinoid which is a central nervous system stimulant. It is used for various physical and mental problems. It affects body movement, euphoria, altered state of mind etc.
The correct answer is C.

Note :
Ephedrine is a stimulant which generates heat. It increases the vitals by stimulating the activity in the nervous system. Due to its stimulant activity, it is used as an abused drug. The drug elevates the heartbeat, blood pressure. So, several side effects are reported due to abusive use of this drug.