Treatment of Diarrhea and Burping
For an otherwise healthy adult with acute diarrhea and burping, start oral rehydration with glucose-containing drinks or soups, maintain food intake guided by appetite, and use loperamide 2 mg flexibly according to loose bowel movements—this combination addresses both fluid losses and symptom relief without requiring antibiotics in most cases. 1, 2
Initial Assessment and Red Flags
Before self-treatment, exclude warning signs that require immediate medical evaluation: 1, 2
- High fever >38.5°C or frank blood in stools (dysentery) 1
- Severe vomiting that could lead to rapid dehydration 1
- Signs of dehydration: decreased urination, dry mucous membranes, orthostasis, altered mental status 2, 3
- Age >75 years, immunocompromised status, or chronic bowel disease 1
If any of these are present, seek medical supervision rather than self-treating. 1
Rehydration Strategy
Oral rehydration is the cornerstone of treatment: 2, 3
- Maintain adequate fluid intake guided by thirst 1
- Use glucose-containing drinks (lemonades, sweet sodas, fruit juices) or electrolyte-rich soups—the glucose enhances intestinal sodium and water absorption 1
- Reduced osmolarity oral rehydration solution (ORS) containing Na 90 mM, K 20 mM, Cl 80 mM, HCO₃ 30 mM, and glucose 111 mM is optimal if available, though not essential for otherwise healthy adults 2, 3
- Avoid commercial sports drinks—they have inappropriate electrolyte composition for diarrhea 2
For moderate dehydration (50-100 mL/kg over 2-4 hours), ORS is superior to IV fluids when tolerated orally. 2, 3
Dietary Management
Continue eating throughout the illness: 1, 2
- Resume normal diet immediately—there is no evidence that solid food hastens or retards recovery in adults 1
- Small, light meals are recommended 1
- Avoid fatty, heavy, spicy foods and caffeine (including cola drinks) 1
- Consider avoiding lactose-containing foods (milk) if diarrhea becomes prolonged, as temporary lactose intolerance can develop 1
Antidiarrheal Medication
Loperamide 2 mg is the drug of choice for symptomatic relief: 1
- Dose flexibly according to loose bowel movements—take after each unformed stool, up to 16 mg maximum daily 1, 4
- Only use after adequate hydration is established—loperamide is ancillary to fluid replacement, not a substitute 2, 3
- Absolute contraindications: bloody diarrhea, fever, suspected inflammatory diarrhea, age <18 years 2, 4
- Stop immediately if constipation, abdominal distention, or ileus develops 4
Critical safety warning: Avoid doses higher than recommended due to risk of cardiac arrhythmias, QT prolongation, and sudden death, particularly if taking CYP3A4 inhibitors (itraconazole), CYP2C8 inhibitors (gemfibrozil), P-glycoprotein inhibitors (quinidine, ritonavir), or drugs that prolong QT interval (antiarrhythmics, antipsychotics, certain antibiotics). 4
Antimicrobial Therapy
Antibiotics are NOT recommended for uncomplicated acute watery diarrhea: 2, 3
- Reserve antimicrobials for: immunocompromised patients, recent international travel with fever ≥38.5°C, bloody diarrhea with presumptive shigellosis, or clinical features of sepsis 2, 3
- Never use antibiotics for suspected STEC (Shiga toxin-producing E. coli)—they increase risk of hemolytic uremic syndrome 2, 3
- Quinolones are first-line when antibiotics are indicated (e.g., travelers' diarrhea with fever/bloody stools), with cotrimoxazole as second choice 1
Addressing the Burping
While the evidence focuses primarily on diarrhea management, burping (eructation) accompanying acute diarrhea typically results from:
- Swallowing air during rapid fluid intake or from gastrointestinal distress
- Fermentation of unabsorbed nutrients in the setting of malabsorption
- Avoiding carbonated beverages and eating slowly may reduce burping, though this should not interfere with adequate fluid replacement 1
When to Seek Medical Attention
Contact a physician if: 1
- No improvement within 48 hours 1
- Symptoms worsen or overall condition deteriorates 1
- Warning signs develop: severe vomiting, dehydration, persistent fever, abdominal distention, or frank blood in stools 1
Adjunctive Therapies
Probiotics may be offered to reduce symptom severity and duration in immunocompetent patients, though evidence is moderate and they are not widely recommended for early treatment. 1, 2