UNIT 11 Histamine 2 Blocker

Question 1

What Drug class is Famatodine

Answer 1

Histamine 2 blocker

Question 2

What is the use of Famotodine

Answer 2

Histamine2 blockers
Famotidine (end in dine)

Action
* Reduce gastric acid by blocking histamine at H2 receptors of
parietal cells in stomach
* Promote healing of ulcer by eliminating cause
* Use
* Prevent and treat peptic ulcers, GERD, and stress ulcers

Side effects
* Confusion, headaches, dizziness, diarrhea, constipation, nausea,
rash, blurred vision, malaise, decreased libido\

• Adverse reactions
• Hepatotoxicity, cardiac dysrhythmias, blood dyscrasias

Question 3

Is famatodine toxic to the liver?

Answer 3

yes

• Adverse reactions
• Hepatotoxicity, cardiac dysrhythmias, blood dyscrasias

Question 4

Should a patient drive after taking famotodine

Answer 4

no causes dizziness

Side effects
* Confusion, headaches, dizziness, diarrhea, constipation, nausea,
rash, blurred vision, malaise, decreased libido\

Question 5

Can Famtodine cause confusion in older adults

Answer 5

Interactions
Take 30 minutes before other drugs
Can cause confusion in older adults

Contraindication
Pregnancy, breast feeding
 Severe renal or liver disease

Question 6

When administering the histamine2 blocker famotidine,
the nurse will
A. monitor laboratory results because famotidine
decreases the effect of oral anticoagulants.
B. separate famotidine and other medications by at least
½ hour.
C. teach the patient to avoid foods rich in vitamin B12.
D. expect a reduction in the patient’s pain to occur after
5 days of therapy.

Answer 6

B. separate famotidine and other medications by at least
½ hour.

Rationale: Antacids can be given 1 hour before or after
famotidine as part of the antiulcer drug regimen.
Famotidine can increase the effect of oral anticoagulants.
Patients on famotidine should eat a diet rich in vitamin B12
to avoid deficiency as a result of drug therapy. The
patient’s abdominal pain is expected to decrease after 1 to 2
weeks of drug therapy.