00:01
Okay, let's go on to some questions. H2D2, these are not the drugs you are looking for.
00:08
Now, if you don't get the joke, you probably have a social life. Let's move on to the question.
00:12
The following statements pertain to H2 blockers. Pick the false statement.
00:17
A, the H2 blockers are more potent and more effective than the antacids.
00:22
B, they irreversibly inactivate the hydrogen potassium ATPase pump.
00:27
C, cimetidine has antiandrogenic actions at high doses.
00:31
Or D, they inhibit absorption of drugs like ketoconazole.
00:36
Remember that H2 blockers do not irreversibly inactivate the hydrogen-potassium ATPase pump.
00:44
That distinction lies with the proton pump inhibitors.
00:49
Let's move on to another question.
00:52
An 80 year old male with chronic constipation
presents with severe gastroesophageal reflux after a large turkey dinner.
01:00
The best choice for acute treatment in this individual is?
Aluminium hydroxide? Magnesium hydroxide? Calcium carbonate?
Sodium bicarbonate? Or metoclopramide?
Good, you chose magnesium hydroxide.
01:21
So when you are looking at these agents, remember that aluminium hydroxide
can be constipating.
01:27
This guy already has constipation so maybe it's not a great choice.
01:30
Calcium carbonate and sodium bicarb are weaker antacids.
01:34
Calcium carbonate is found in Tums for example,
and sodium bicarb is found in a lot of those effervescent tablets that you buy over the counter.
01:44
Metoclopramide is a promotility agent, but not an effective antacid.
01:49
So it's not treating both problems. The answer here is going to be B, magnesium hydroxide.
01:55
It's also called Milk of Magnesia. It has laxative effects, anti-acid effects,
and it's also quite soothing on the elderly bowel.