Aheroin addict went through the following treatment to stop his drug abuse: a doctor gradually replaced his daily heroin dosage with the legal drug methadone. what kind of treatment is this?

Why would a smoker tend to inhale more deeply and smoke more cigarettes when he or she switches to low nicotine cigarettes

Drug categories matching. match the term in column 1 with the associated term in column 2. antihistamine antipsychotic analgesic antidiabetic anticholinergic beta-agonists anti-alzheimer ssri antianxiety corticosteroid cytotoxic antifungal antiviral quinolone cephalosporin rapid-acting insulin antiemetics anti-acidity antihyperlipidemics vasodilators antiarrhythmics calcium channel blockers beta blockers angiotensin ii receptor blockers diuretics digitalis preparations antiosteoporosis drug antiplatelet drug local anesthesia ipratropium simvastatin aricept dolasetron ciprofloxacin digoxin aripiprazole sotalol acyclovir valsartan hydralazine nsaid

Which of the regulations is not designed to protect the environment