An antianginal is any variety of drug used in the treatment of angina pectoris.
Nitroglycerin
Yep, but you won't explode from taking it. See the attached link.
Hydralazine is an example of a drug that can elicit the coronary steal phenomenon by dilating the healthy epicardial coronary vessels and "stealing" blood from the already maximally dilated endocardial vessels.
drug abuse could lead to drug addiction and dependence
Recreational Drug.
No, a drug can not have new drug application and an abbreviated drug application number can be NOT the same. Source: Experience.
Drug tests can not differentiate the means of taking a drug.
Drug addict is the correct spelling. A drug addict suffers from drug addiction.
The National Drug Code number of the drug is included is this section of a drug monograph Answer: How Supplied (page 42-45)
a drug
A drug bound to a protein is an active drug