Laxatives (bulk forming) Flashcards
1
Q
What is the generic and brand name of bulk forming laxatives?
A
Ispaghula husk (Fybogel)
2
Q
What is the method of action of bulk forming laxatives?
A
• Contains hydrophilic substances e.g. cellulose that draws/absorbs water into the stool
3
Q
What are the indications for bulk forming laxatives?
A
- Constipation
* Mild, chronic diarrohea
4
Q
What are the contraindications for bulk forming laxatives?
A
- Intestinal obstruction
- Faecal impaction
- Senile mega-colon - dilatation of colon
5
Q
What are the side effects of bulk forming laxatives?
A
- Abdo distention
- Flatulence
- Faecal impaction
- GI obstruction
6
Q
What are the interactions with bulk forming laxatives?
A
- May delay GI absorption of other drugs:
- Cardiac glycosides e.g digoxin
- Lithium
- Vitamins and minerals (Ca/Zn)
7
Q
What is the route of elimination in bulk forming laxatives?
A
Faecal
8
Q
What patient information should be given with bulk forming laxatives?
A
- Bulk forming – must drink lots of water for it to work
* Take with food
