Drug Class Affixes — Transcript

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1. 0:01as I explained in the introduction we're
2. 0:04discussing a number of topics in this
3. 0:06chapter that are relevant to the
4. 0:08medications known as the histamine II
5. 0:11receptor blockers
6. 0:13the term histamine receptor blocker is
7. 0:16the term that we use for the entire
8. 0:18group of drugs or in other words the
9. 0:21drug class
10. 0:23recall that the drug class is a set of
11. 0:26medications that have a similar chemical
12. 0:29structure and or they work by the same
13. 0:32mechanism of action
14. 0:34so for instance antacids are in a drug
15. 0:38class that is against acid and they
16. 0:42simply neutralize the acid in the
17. 0:44stomach
18. 0:45as you'll see in this chapter the
19. 0:47histamine 2 receptor blocker also
20. 0:50reduces stomach acid but it's not in the
21. 0:53same drug class as the antacids because
22. 0:56they reduce the acid in a completely
23. 0:59different way and we'll see how they
24. 1:01work in this chapter the individual
25. 1:04medications within the drug class of
26. 1:06histamine 2 receptor blockers are known
27. 1:09by their generic name histamine 2
28. 1:12receptor blockers include symmetidine
29. 1:15and famotidine
30. 1:17look at those two generic names and tell
31. 1:20me what is similar about them
32. 1:23cymetidine and famotidine
33. 1:28and you are correct if you noted that
34. 1:30those two examples end in the suffix
35. 1:33tadine
36. 1:35t-i-d-i-n-e not just d-i-n-e or i-n-e
37. 1:39that's important because other
38. 1:41medications and in i n e and they're not
39. 1:46histamine 2 receptor antagonists so if
40. 1:50you're ever looking at a person's
41. 1:51medications and see a drug ending in the
42. 1:54suffix
43. 1:55t-i-d-i-n-e you know that it's a
44. 1:57histamine 2 blocker
45. 2:00let's try that right now you're looking
46. 2:02at Mrs de gero's chart and notice that
47. 2:05she's on the following medications
48. 2:07nabivilol
49. 2:09symmetidine
50. 2:11momentosone cream and clonazepam
51. 2:16can you identify any members of a
52. 2:19particular drug class in that list
53. 2:24and you were correct if you had said
54. 2:27that cymetidine ends with the
55. 2:30t-i-d-i-n-e so it is a histamine 2
56. 2:33receptor blocker or H2 antagonist that
57. 2:37decreases stomach acid
58. 2:40so after this chapter we'll fully
59. 2:42understand the receptor that Ranitidine
60. 2:45binds to what happens after it binds
61. 2:48what the indications the
62. 2:49contraindications and side effects of
63. 2:51Ranitidine are and that'll give us a
64. 2:54pretty good picture of famotidine and
65. 2:57cimetidine there will be some
66. 2:59differences mostly in the side effects
67. 3:01but we will still know quite a bit about
68. 3:04the other medications of a particular
69. 3:06drug class by studying one member of
70. 3:10that drug class
71. 3:12and right now you may be thinking wait a
72. 3:14minute we talked about the opioids and a
73. 3:17lot of them were quite different
74. 3:19to be clear there are a few cases in
75. 3:22which a medication of the same drug
76. 3:24class is quite different the opioids are
77. 3:26one example because they're a very Broad
78. 3:29and diverse drug class and that drug
79. 3:32class is actually divided up into
80. 3:34smaller units
81. 3:37you won't find a common suffix of the
82. 3:40entire group of opioids but most drug
83. 3:43classes with a common suffix have a lot
84. 3:46in common to other members of the same
85. 3:49drug class
86. 3:50so back to the medications that Mrs
87. 3:53degiero is taking recall that in Chapter
88. 3:562 we spoke of nominglature in the
89. 3:59applying your knowledge portion of
90. 4:01lesson two and there we learned that
91. 4:04beta blockers ended in o l o l the
92. 4:08benzodiazepines and in azepam or as a
93. 4:13lamb and the corticosteroids have a
94. 4:16number of drug prefixes and suffixes
95. 4:18including a sewn court and pred so you
96. 4:23did really well if you identified
97. 4:25nebevelal as a beta blocker that treats
98. 4:29hypertension cymetidine as a histamine
99. 4:32two antagonist that decreases stomach
100. 4:35acid
101. 4:36momentosone cream as a corticosteroid
102. 4:40that decreases the immune system
103. 4:42response and clonazepam as a
104. 4:46benzodiazepine that treats seizures or
105. 4:49anxiety in the next couple lessons we'll
106. 4:53go through the process that you need to
107. 4:55go through to get a really good picture
108. 4:57of the histamine II antagonists
109. 5:00and that is what you'll need to do for
110. 5:03each one of the drug classes that I just
111. 5:05mentioned but once you do that for just
112. 5:07those four drug classes you'll know
113. 5:09quite a bit about 22 of the 200 most
114. 5:13prescribed medications
115. 5:16so let's take a quick quiz you're
116. 5:18looking at a client's medications and
117. 5:20see that he's on the following
118. 5:22medications
119. 5:23famotidine
120. 5:25methylprednisolone diazepam and Atenolol
121. 5:30identify each drug class that the
122. 5:33medications belong to
123. 5:38so you were correct if you identified
124. 5:40famotidine as the histamine II
125. 5:43antagonist that decreases stomach
126. 5:45acidity that's the drug that we're going
127. 5:48to get a really good picture of in this
128. 5:51chapter
129. 5:52Methylprednisolone is a corticosteroid
130. 5:55that decreases the immune system
131. 5:57response diazepam is also known as
132. 6:01Valium and it is a benzodiazepine it's
133. 6:05prescribed for seizures and anxiety and
134. 6:08Atenolol is a beta blocker
135. 6:12that decreases hypertension remember the
136. 6:16o-l-o-l suffix