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ALIMENTARY TRACT AND METABOLISM › DIGESTIVES, INCL. ENZYMES › DIGESTIVES, INCL. ENZYMES › Enzyme preparations
diastase
A09AA01
Forms & Strengths
- Oral liquid: Diastase 50 mg/pepsin 10 mg per 5 mL
- Oral syrup: Fungal diastase (1:1200) 20 mg/mL
- Combination enzyme tablets: Diastase combined with papain, pepsin, and pancreatin
Adult Dosing
- Fungal diastase: 1 to 2 teaspoonfuls (5 to 10 mL) or 1 to 2 tablets orally immediately after meals
- Dose frequency: 2 to 3 times daily as needed for digestive support
Pediatric Dosing
- Children > 12 years: 1 teaspoonful (5 mL) or 1 tablet orally after meals
- Children < 12 years: Safety and efficacy not well established; use only under direct medical supervision
Indications
- Digestive aid for dyspepsia and carbohydrate maldigestion
- Adjuvant therapy in pancreatic exocrine insufficiency and chronic gastritis
- Relief of flatulence, abdominal distension, and postprandial fullness
Mechanism of Action
- Acts as a digestive enzyme supplement containing amylolytic enzymes derived from fungi or plants
- Hydrolyzes complex carbohydrates, starches, and polysaccharides into simpler dextrins and maltose to facilitate gastrointestinal absorption
Contraindications
- Hypersensitivity to diastase, fungal proteins, or any component of the formulation
- Acute pancreatitis or acute exacerbations of chronic pancreatitis
- Known porcine or fungal allergy depending on the enzyme source
Adverse Reactions
- Gastrointestinal: Nausea, abdominal cramps, diarrhea, or perianal irritation with high doses
- Hypersensitivity: Skin rash, urticaria, pruritus, or anaphylaxis in rare cases
- Stomatitis or oral mucosal ulceration with prolonged direct contact of powder or tablets
Drug Interactions
- Antacids and H2-blockers/PPIs: May inactivate or reduce the enzymatic efficacy of diastase in an altered gastric pH environment
- Acarbose and miglitol: Alpha-glucosidase inhibitors may theoretically antagonize or be affected by carbohydrate-digesting enzymes
- Pancreatic enzyme supplements: Concurrent use may lead to additive gastrointestinal side effects
Curated Content: Needs Vetting Before Put to Clinical Use