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Laxatives are a category of medications frequently used to address constipation and various other gastrointestinal medical conditions. Their primary mechanism involves enhancing digestion and promoting bowel movements, thereby facilitating the process of bodily excretion. Laxatives can provide relief for patients with irritable bowel syndrome with constipation, chronic idiopathic constipation, and opioid-induced constipation. Besides addressing constipation, laxatives are occasionally used to empty the bowels before procedures such as colonoscopies. Osmotic or stimulant laxatives are typically used as the first treatment option for constipation. If they do not effectively manage constipation, prokinetics or secretagogues may be used as the next steps. Laxatives are categorized based on the mechanism of action they exert, including bulk-forming laxatives, osmotic and prokinetic agents, lubricants, stimulants, and other types. Notably, laxative therapy is not the sole treatment for constipation. Initial management should involve lifestyle changes, including consuming increased fluids and fiber-rich foods, such as asparagus, broccoli, Brussels sprouts, cabbage, and spinach, into their diet. If constipation persists despite lifestyle modifications, the use of laxatives becomes a viable consideration. The comprehensive approach to treating chronic constipation encompasses patient education, behavior modification, dietary adjustments, and, if necessary, the inclusion of laxative therapy. This activity provides a comprehensive review of laxative classification, mechanism of action, proper administration, monitoring practices, and contraindications necessary for healthcare providers to proficiently address constipation and contribute to the overall well-being of their patients. Objectives: Identify the appropriate laxative classification based on the patient's clinical presentation and underlying conditions to determine the most suitable option for individual patients. Implement evidence-based guidelines for the effective and safe use of laxatives in managing constipation. Assess patient response to laxative therapy, including first- and second-line agents, and adjust treatment plans as necessary.

Identify the appropriate laxative classification based on the patient's clinical presentation and underlying conditions to determine the most suitable option for individual patients. Implement evidence-based guidelines for the effective and safe use of laxatives in managing constipation. Assess patient response to laxative therapy, including first- and second-line agents, and adjust treatment plans as necessary. Communicate effectively with patients and coordinate care by integrating lifestyle modifications, patient education, and behavioral interventions alongside laxative therapy for comprehensive and patient-centered outcomes. Access free multiple choice questions on this topic.

Laxative abuse is not uncommon and is found in patients with anorexia nervosa or bulimia nervosa and older patients who continue to use laxatives once started for constipation. It also includes patients with surreptitious diarrhea.[32] Patients who misuse laxatives usually complain of diarrhea with alternating constipation, nausea, and vomiting.[33] These patients can present with dehydration and electrolyte imbalances like hyponatremia, hypokalemia, hyperuricemia, and hyperaldosteronism.[33] Dehydration and hypokalemia together can cause renal insufficiency.[34] In diarrhea, potassium and volume depletion increases aldosterone secretion, worsening hypokalemia.[34] The treatment of laxative abuse is to quit the causative agent. The main challenges are rebound symptoms like weight gain, edema, and constipation, which are very distressing for the patient. Edema is due to renal retention of water. Diuretics should be used with caution to help with constipation and edema and increase patient tolerance when stopping laxative use. Renal function and electrolytes require careful monitoring. Diuretics can be tapered over 3 months.[35]

Laxatives can effectively treat various medical conditions but may cause adverse effects such as abdominal pain, nausea, and urinary retention. Prescription guidelines for laxative use are crucial for clinicians, as constipation is highly prevalent in outpatient care and requires appropriate patient education. [36][4] Constipation is prevalent in older patients when admitted inpatient and leads to prolonged hospital stays. Interprofessional healthcare providers, including clinicians, nurses, pharmacists, dieticians, and care staff, should work together to appropriately manage laxative use in patients. Various interventions include maintenance of stool charts, medication review, and medication compliance to manage functional bowel movements during hospitalization.[37] Pharmacists also play a role by reviewing medication management and communicating any identified concerns to clinicians. An interprofessional approach involving clinicians, gastroenterologists, pharmacists, and nurses can enhance patient outcomes while reducing the occurrence of adverse drug reactions.