subject. audience. purpose

I think this ad is very strong and impressive, because of the implicity of the image and the sloggan. But this is good because that's how people understand how serious and dangerous drugs are. The ad is refering to the diseases that drugs carry with them, and what happen to people that consume them, and even it don't happen the first time you use drugs, but the drogadicts think that they can leave it whenever they want to, but when they start to have all the syndroms of the drugs like the bugs under the skin, like the ad say, they try to leave drugs, but they can't, and the only thing that they can do is look for help. I don't think that the ad is refering to specific audience, because drugs are problem of everyone, whoever can fall in drogadiction, so it is to everybody, because everybody needs to know the effects of the use of drugs.