Which of the following is true about a fixed combination with beta blockers added to a PGA?

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Multiple Choice

Which of the following is true about a fixed combination with beta blockers added to a PGA?

Explanation:
Combining a prostaglandin analogue with a beta blocker works because they use two different mechanisms to lower eye pressure: prostaglandins increase outflow of aqueous humor, while beta blockers reduce its production. When used together as a fixed combination, their effects add up to produce a larger reduction in intraocular pressure than either drug alone. On average, this mixed therapy lowers IOP by about 7 mmHg from baseline, though the exact amount varies with the starting pressure and individual response. So the statement that it lowers IOP by about 7 mmHg best fits typical outcomes. It wouldn’t raise IOP, and it isn’t a negligible 1 mmHg decrease, since the combined effect is clinically meaningful.

Combining a prostaglandin analogue with a beta blocker works because they use two different mechanisms to lower eye pressure: prostaglandins increase outflow of aqueous humor, while beta blockers reduce its production. When used together as a fixed combination, their effects add up to produce a larger reduction in intraocular pressure than either drug alone. On average, this mixed therapy lowers IOP by about 7 mmHg from baseline, though the exact amount varies with the starting pressure and individual response. So the statement that it lowers IOP by about 7 mmHg best fits typical outcomes. It wouldn’t raise IOP, and it isn’t a negligible 1 mmHg decrease, since the combined effect is clinically meaningful.

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