0.04 g =____mg (Fill in the blank with the numerical value only)

A. "Barbiturates carry a higher risk of dependence and overdose compared to other sedative-hypnotics.": Barbiturates have a narrow therapeutic index, and overdose can lead to fatal respiratory depression. Their high abuse potential and severe withdrawal symptoms make them less favorable than safer alternatives like benzodiazepines.
B. "Barbiturates are more expensive than newer medications like benzodiazepines, which limits their use.": Cost is not the primary reason for their reduced use. In fact, many barbiturates are inexpensive. Their safety profile and high risk of fatal overdose are the major concerns.
C. "Barbiturates have been replaced because they are less effective than over-the-counter sleep aids.": Barbiturates are actually very potent sedative-hypnotics. However, their risks outweigh their benefits. OTC sleep aids are less effective but considered safer for short-term use.
D. "Barbiturates are safer for long-term use compared to other sedatives, but they have limited availability.": Barbiturates are not safer for long-term use. They are associated with tolerance, dependence, cognitive impairment, and severe withdrawal, which is why their use has been largely replaced.

A. "I should avoid antitussives if I have a productive cough with mucus.": Antitussives can inhibit the body’s ability to clear mucus when coughing is suppressed. In the case of a productive cough, clearing secretions is essential to prevent airway obstruction and secondary infections.
B. "Antitussives are helpful in clearing mucus from my lungs during a productive cough.": Antitussives reduce the cough reflex and do not aid in mucus clearance. Their use during a productive cough can lead to mucus retention, worsening congestion and increasing the risk of complications such as pneumonia.
C. "Using antitussives for a productive cough can lead to mucus buildup in my airways.": Suppressing a productive cough prevents the expulsion of mucus, which can accumulate in the lungs. This can impair gas exchange and create an environment for bacterial growth.
D. "Antitussives are used to suppress a dry, nonproductive cough.": These medications are most appropriate when there is no mucus to expel. They help reduce the frequency and intensity of dry coughing, especially when it interferes with sleep or comfort.