The health of populations is managed by altering risk and ____ factors.?

Which of the following is NOT a common ophthalmic dosage form?

A) Solution B) Suspension C) Ointment D) Emulsion

The liver's partial or complete inactivation of a drug before it reaches the systemic circulation is the _________________________________ effect

a. hepatic filtration c. liver–blood barrier b. first-pass d. antidrug