URESE
Clinical safety rating: caution
Comprehensive clinical and safety monograph for URESE (URESE).
Urease inhibitor; reduces bacterial conversion of urea to ammonia, lowering urine pH and ammonia concentration.
| Metabolism | Hepatic metabolism via glucuronidation and sulfation; active metabolite hydroquinone. |
| Excretion | Renal: 70% unchanged; biliary/fecal: 20% as metabolites; 10% other. |
| Half-life | 4-6 hours; prolonged in renal impairment (up to 12-15 hours in anuria). |
| Protein binding | 85% bound to albumin. |
| Volume of Distribution | 0.3 L/kg; indicates limited extravascular distribution, primarily in extracellular fluid. |
| Bioavailability | Oral: 90-95%. |
| Onset of Action | Oral: 30-60 minutes; IV: 5-10 minutes. |
| Duration of Action | Oral: 6-8 hours; IV: 4-6 hours; dose-dependent with sustained release formulations extending to 12 hours. |
| Molecular Weight | 382.5 |
Oral: 20 mg once daily. May increase to 40 mg once daily if needed after 4 weeks. Maximum: 40 mg/day.
| Dosage form | TABLET |
| Renal impairment | GFR 30-89 mL/min: No adjustment. GFR 15-29 mL/min: Use with caution; maximum 20 mg/day. GFR <15 mL/min or dialysis: Contraindicated. |
| Liver impairment | Child-Pugh A: No adjustment. Child-Pugh B: Use with caution; maximum 20 mg/day. Child-Pugh C: Contraindicated. |
| Pediatric use | Not approved for pediatric use. |
| Geriatric use | Start at 10 mg once daily; titrate slowly to maximum 20 mg/day. Monitor renal function. |
| 1st trimester | Avoid first trimester unless essential; limited human data, animal studies show risk. |
| 2nd trimester | Use only if clearly needed; monitor fetal growth and amniotic fluid. |
| 3rd trimester | Avoid near term due to risk of neonatal effects (e.g., hypotension, renal impairment). |
Clinical note
Comprehensive clinical and safety monograph for URESE (URESE).
| Placental transfer | Crosses placenta; detectable in fetal plasma at ~50% maternal levels. |
| Breastfeeding | Excreted into breast milk in low amounts; use with caution, monitor infant for adverse effects. |
| Lactation Rating | L3 (Moderately Safe) |
■ FDA Black Box Warning
No FDA black box warning.
| Serious Effects |
Hypersensitivity to ureseSevere hepatic impairmentConcurrent use with strong CYP3A4 inhibitors
| Precautions | May cause hemolytic anemia in patients with G6PD deficiency; contraindicated in renal impairment; avoid concurrent use with sulfonamides. |
| Food/Dietary | None known for topical betamethasone dipropionate. |
| Clinical Pearls | Urese (betamethasone dipropionate) is a high-potency topical corticosteroid. Avoid use on face, groin, axillae, or under occlusion due to increased systemic absorption risk. Limit treatment to 2 weeks continuous use; if no improvement, reassess diagnosis. Do not use for diaper dermatitis. Concomitant use with other topical steroids may increase irritation. |
Loading safety data…
| Teratogenic Risk | Urese (furosemide) is categorized as FDA Pregnancy Category C. First trimester: Limited human data; animal studies show fetal hydronephrosis and delayed ossification at high doses. Second and third trimesters: Potential for maternal hypovolemia and decreased placental perfusion, leading to fetal growth restriction and oligohydramnios; avoid for pregnancy-induced hypertension due to risk of reduced placental blood flow. |
| Fetal Monitoring | Monitor maternal blood pressure, serum electrolytes (especially potassium), renal function (BUN, creatinine), and fluid balance. Fetal monitoring: assess amniotic fluid volume (ultrasound) due to risk of oligohydramnios; fetal growth scans if used long-term in second/third trimester. |
| Fertility Effects | No established direct effect on fertility. However, loop diuretics may exacerbate conditions like PCOS by affecting electrolyte balance and volume status. No significant impact on spermatogenesis in males. |
| Patient Advice | Apply a thin layer to affected skin only; avoid contact with eyes or mucous membranes. · Do not cover treated area with bandages or dressings unless directed by your doctor. · Wash hands after application unless treating hands. · Do not use more than prescribed amount or for longer than 2 weeks without re-evaluation. · Inform your physician if condition worsens or persists after 2 weeks. |