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What type of patients may benefit from laxatives, in addition to those who are constipated?
What type of patients may benefit from laxatives, in addition to those who are constipated?
Patients who are on low residue diets, postpartum, elderly, or have diverticular disease, spastic colon, or hemorrhoids.
What is the mechanism of action of Magnesium Hydroxide and Magnesium Citrate?
What is the mechanism of action of Magnesium Hydroxide and Magnesium Citrate?
Nonabsorbable ions → ↑ osmotic pressure in bowel → watery stools in 1-3 hr.
Why must Magnesium Hydroxide be introduced gradually?
Why must Magnesium Hydroxide be introduced gradually?
To avoid GI impaction.
What is the class of drug that Magnesium Hydroxide and Magnesium Citrate belong to?
What is the class of drug that Magnesium Hydroxide and Magnesium Citrate belong to?
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What is the mechanism of action of Loperamide (Imodium) in the large intestine?
What is the mechanism of action of Loperamide (Imodium) in the large intestine?
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What is the name of the agent that is described as 'Gentle'?
What is the name of the agent that is described as 'Gentle'?
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What is the recommended caution when using Loperamide (Imodium) in kids?
What is the recommended caution when using Loperamide (Imodium) in kids?
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What is the potential problem associated with large amounts of Na+ in Magnesium Citrate?
What is the potential problem associated with large amounts of Na+ in Magnesium Citrate?
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What is the effect of excessive doses of Loperamide (Imodium) on the respiratory system?
What is the effect of excessive doses of Loperamide (Imodium) on the respiratory system?
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What is the utility of Magnesium Hydroxide and Magnesium Citrate in terms of endoscopic exam preparation?
What is the utility of Magnesium Hydroxide and Magnesium Citrate in terms of endoscopic exam preparation?
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How does Loperamide (Imodium) interact with other substances?
How does Loperamide (Imodium) interact with other substances?
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What is another utility of Magnesium Hydroxide and Magnesium Citrate?
What is another utility of Magnesium Hydroxide and Magnesium Citrate?
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What is the special feature of Loperamide (Imodium)?
What is the special feature of Loperamide (Imodium)?
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What is the mechanism of action of Paregoric?
What is the mechanism of action of Paregoric?
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What is the composition of Paregoric?
What is the composition of Paregoric?
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What is the utility of Loperamide (Imodium)?
What is the utility of Loperamide (Imodium)?
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What is the mechanism of action of the laxative discussed in the passage?
What is the mechanism of action of the laxative discussed in the passage?
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What is the absorption of the laxative like?
What is the absorption of the laxative like?
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What is the potential toxicity of the laxative?
What is the potential toxicity of the laxative?
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When should the laxative be administered in relation to other medications?
When should the laxative be administered in relation to other medications?
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What is the utility of the laxative?
What is the utility of the laxative?
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What is the Noble Truth of the Arising of Sorrow according to the passage?
What is the Noble Truth of the Arising of Sorrow according to the passage?
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What is the Noble Truth of the Stopping of Sorrow according to the passage?
What is the Noble Truth of the Stopping of Sorrow according to the passage?
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What is the Noble Eightfold Path mentioned in the passage?
What is the Noble Eightfold Path mentioned in the passage?
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What is the class of antibiotic that Ciprofloxacin (Cipro) belongs to?
What is the class of antibiotic that Ciprofloxacin (Cipro) belongs to?
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What is the mechanism of action of Ciprofloxacin (Cipro)?
What is the mechanism of action of Ciprofloxacin (Cipro)?
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What is the recommended treatment duration for diarrhea with Trimethoprim-Sulfamethoxazole (Bactrim, Septra)?
What is the recommended treatment duration for diarrhea with Trimethoprim-Sulfamethoxazole (Bactrim, Septra)?
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What is the special feature of Difenoxin, an antidiarrheal medication?
What is the special feature of Difenoxin, an antidiarrheal medication?
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Why is atropine included in some antidiarrheal medications?
Why is atropine included in some antidiarrheal medications?
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What is a contraindication for the use of Ciprofloxacin (Cipro)?
What is a contraindication for the use of Ciprofloxacin (Cipro)?
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What is the utility of Trimethoprim-Sulfamethoxazole (Bactrim, Septra) in treating infections?
What is the utility of Trimethoprim-Sulfamethoxazole (Bactrim, Septra) in treating infections?
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What is a potential side effect of excessive doses of Difenoxin?
What is a potential side effect of excessive doses of Difenoxin?
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What is the effect of prolonged use of large dose salicylates on vitamin K actions?
What is the effect of prolonged use of large dose salicylates on vitamin K actions?
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What is the mechanism of vitamin B1 (Thiamine) in the body?
What is the mechanism of vitamin B1 (Thiamine) in the body?
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What is the effect of a megadose of vitamin B6 (Pyridoxine) on the body?
What is the effect of a megadose of vitamin B6 (Pyridoxine) on the body?
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What is the relationship between vitamin B1 (Thiamine) deficiency and caloric intake?
What is the relationship between vitamin B1 (Thiamine) deficiency and caloric intake?
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What is the effect of certain medications on vitamin B6 (Pyridoxine) levels?
What is the effect of certain medications on vitamin B6 (Pyridoxine) levels?
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What is the relationship between vitamin B6 (Pyridoxine) and nicotinic acid conversion?
What is the relationship between vitamin B6 (Pyridoxine) and nicotinic acid conversion?
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What is the effect of pregnancy on vitamin B6 (Pyridoxine) demand?
What is the effect of pregnancy on vitamin B6 (Pyridoxine) demand?
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What is the common effect of vitamin B1 (Thiamine) deficiency in alcoholics?
What is the common effect of vitamin B1 (Thiamine) deficiency in alcoholics?
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Study Notes
Laxatives
- Birth, age, disease, death, and unpleasant contact are all forms of sorrow.
- Craving leads to rebirth, which brings delight and passion, and seeks pleasure.
- The Noble Eightfold Path is the way to stop sorrow, consisting of Right Views, Right Resolve, Right Speech, Right Conduct, Right Livelihood, Right Effort, Right Mindfulness, and Right Concentration.
Magnesium Hydroxide
- Class: Laxative (Bulk-Forming Agent)
- Mechanism: Absorbs and retains water, increasing fecal volume and rate of transit.
- Not absorbed, useful for patients with alternating constipation and diarrhea, and those on low residue diets, postpartum, elderly, or with diverticular disease, spastic colon, or hemorrhoids.
Magnesium Citrate
- Class: Laxative (Saline Cathartic)
- Mechanism: Nonabsorbable ions increase osmotic pressure in the bowel, leading to watery stools in 1-3 hours.
- Not much absorbed, toxicity may accumulate in infants, old folk, and patients with impaired renal function.
Opioids
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Loperamide (Imodium)
- Class: Opioid (Antidiarrheal) (OTC)
- Mechanism: Increases gastric tone, delaying gastric emptying, and decreasing gut motility.
- Effects due to inhibition of ACh release by neurons in the intestines.
- Toxicity: dizziness, drowsiness, mild euphoria, and potential respiratory depression.
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Paregoric
- Class: Opioid (Antidiarrheal)
- Mechanism: Increases gastric tone, delaying gastric emptying.
- Preparation of oral morphine, anise oil, benzoic acid, camphor, diluted alcohol, and glycerin.
- Toxicity: usually not severe, GI, CNS, and potential respiratory depression.
Antibiotics
-
Ciprofloxacin (Cipro)
- Class: Fluorinated quinolone
- Mechanism: Inhibits bacterial growth.
- Prolonged use of large dose salicylates blocks vitamin K actions in prothrombin synthesis, leading to hypoprothrombinemia.
- Used for UTIs due to Enterobacteriaceae, Enterococcus, Staph, and Pseudomonas, and infectious diarrhea.
-
Trimethoprim-Sulfamethoxazole (Bactrim, Septra)
- Class: Antimicrobial
- Mechanism: Inhibits bacterial growth.
Vitamins
-
Vitamin B1 (Thiamine)
- Class:
- Mechanism: Coenzyme in decarboxylation reactions, facilitates conduction of impulses in peripheral nerves.
- Deficiency leads to dry and wet beriberi, Wernicke-Korsakoff's syndrome, and is common in alcoholics.
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Vitamin B6 (Pyridoxine)
- Class:
- Mechanism: Derivatives serve as coenzymes in many intermediate reactions.
- Deficiency leads to cheilosis, glossitis, dermatitis, and peripheral neuropathy.
- Liver damage increases the need for vitamin B6, and penicillamine, hydralazine, and isoniazid complex with B6, decreasing its availability.
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Description
This quiz is about the mechanism of laxatives, specifically bulk-forming agents, and their effects on the body.