Which of the following is $NOT$ an effect of cocaine?

From which of the given plants is the drug whose skeletal structure is given below extracted?

Which of the following are useful suggestions for the prevention and control of alcohol and drug abuse during adolescence?
$(1)$ Avoid undue peer pressure
$(2)$ Seeking professional and medical help
$(3)$ Looking for danger signs
$(4)$ Education and counselling
$(5)$ Seeking help from parents and peers

Opium is obtained from

With repeated use of drugs,the tolerance level of the receptors in our body:

Given below are two statements.
Statement $I$ - Consumption of narcotic analgesics,anabolic steroids and diuretics decreases muscle strength.
Statement $II$ - In females,the anabolic steroids may lead to masculinization and mood swings.
In the light of above statements,choose the most appropriate answer from the options given below.