Dorbane, Dorbanex (historical)
Generic Name
Dantron
Manufacturer
Various (historically, e.g., Riker Laboratories)
Country
Globally (Withdrawn)
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Description
Overview of the medicine
Dantron (also known as Danthron) is a stimulant laxative belonging to the anthraquinone class. It was historically used for the treatment of chronic constipation, especially in elderly and terminally ill patients. However, it was withdrawn from most markets due to concerns about its potential carcinogenicity and genotoxicity. It is generally not recommended for use.
Uses & Indications
Dosage
Adults
Historically: 25 mg to 150 mg once daily at bedtime. Not for current use.
Elderly
Historically: 25 mg to 75 mg once daily at bedtime. Not for current use.
Renal_impairment
Historically: Dose adjustment may have been considered due to renal excretion. Not for current use.
How to Take
Historically: Taken orally, usually once daily at bedtime with a glass of water. Not for current use.
Mechanism of Action
Dantron stimulates peristaltic contractions of the colon by directly irritating the intestinal mucosa. It also reduces water absorption and increases electrolyte secretion into the lumen of the large intestine, leading to an increase in intraluminal fluid and softer stools, facilitating bowel movement.
Pharmacokinetics
Onset
6-12 hours.
Excretion
Excreted mainly via urine, with some elimination in feces and breast milk.
Half life
Variable, typically few hours for metabolites.
Absorption
Readily absorbed from the gastrointestinal tract.
Metabolism
Primarily hepatic, undergoing glucuronidation and sulfation.
Side Effects
Contraindications
- •Known hypersensitivity to Dantron or anthraquinones.
- •Acute abdominal conditions (e.g., appendicitis, inflammatory bowel disease, severe abdominal pain).
- •Bowel obstruction.
- •Severe dehydration.
- •Pregnancy and lactation.
- •Carcinogenicity concerns.
Drug Interactions
Warfarin
May potentiate the effects of warfarin due to effects on gut flora or absorption, requiring INR monitoring.
Diuretics
Increased risk of electrolyte imbalance (e.g., hypokalemia).
Other laxatives
Increased risk of severe diarrhea and electrolyte imbalance.
Storage
Not applicable (drug withdrawn). Historically, stored at room temperature, protected from light and moisture.
Overdose
Symptoms include severe abdominal cramps, diarrhea, and significant fluid and electrolyte disturbances (e.g., hypokalemia). Management is supportive, involving fluid and electrolyte replacement. No specific antidote.
Pregnancy & Lactation
Contraindicated during pregnancy and lactation due to potential genotoxicity and excretion into breast milk. Potential risk to the fetus and breast-fed infant.
Frequently Asked Questions
Common questions about this medicine
Pack Sizes
Shelf Life
Not applicable (drug withdrawn).
Availability
Not available (Withdrawn from market)
Approval Status
Withdrawn globally due to carcinogenicity concerns
Patent Status
Expired/Not applicable (drug withdrawn)
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Global Brand Names
International brand names for this medicine
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