Drug Interactions between Urografin 325 and voclosporin
This report displays the potential drug interactions for the following 2 drugs:
- Urografin 325 (diatrizoate)
- voclosporin
Interactions between your drugs
diatrizoate voclosporin
Applies to: Urografin 325 (diatrizoate) and voclosporin
GENERALLY AVOID: Concomitant use of intravascular radiocontrast media with other nephrotoxic agents may potentiate the risk of contrast-induced nephropathy and renal impairment. Contrast-induced nephropathy is most commonly defined as an increase in serum creatinine >=0.5 mg/dL or 25% from baseline within 24 to 72 hours of intravascular contrast administration in the absence of alternative etiologies, although nephropathy may occur up to a week after contrast exposure. Pathogenesis has not been fully elucidated, but may involve renal hypoperfusion and ischemia, direct cytotoxicity on tubular epithelial cells, and generation of reactive oxygen species. While the condition is usually transient and asymptomatic, it can be associated with increased risk of renal failure, dialysis, prolonged hospitalization, significant long-term morbidity, and mortality. Patients at increased risk of developing contrast-induced nephropathy include those with diabetes (especially diabetic nephropathy), preexisting renal insufficiency (serum creatinine >1.5 mg/dL or GFR <60 mL/min/1.73 m2), volume depletion (e.g., diuretic use), advanced age (>70 years), congestive heart failure, multiple myeloma, hypoalbuminemia, and concomitant use of nephrotoxic agents (e.g., aminoglycosides; polypeptide, glycopeptide, and polymyxin antibiotics; amphotericin B; aminosalicylates; antiviral/antiretroviral agents such as acyclovir, adefovir, cidofovir, foscarnet, and tenofovir; antineoplastics such as aldesleukin, cisplatin, clofarabine, ifosfamide, streptozocin, and high intravenous dosages of methotrexate; chelating agents such as deferasirox, deferoxamine, edetate disodium, and edetate calcium disodium; immunosuppressants such as cyclosporine, everolimus, sirolimus, and tacrolimus; intravenous bisphosphonates; intravenous pentamidine; high dosages and/or chronic use of nonsteroidal anti-inflammatory agents; gallium nitrate; lithium; penicillamine). The incidence has been reported to be approximately 10% to 30% in patients with risk factors, and as high as 90% in diabetics with chronic kidney disease. Intraarterial administration of contrast media is also associated with increased risk of nephropathy relative to intravenous administration.
MANAGEMENT: Alternative imaging techniques that do not require contrast should be considered in patients who are at increased risk for contrast-induced nephropathy. Otherwise, experts recommend discontinuing other nephrotoxic drugs 1 to 2 days before administration of contrast media, depending on the clinical feasibility of doing so. The smallest effective dose (100 mL or less) of a nonionic, low-osmolar (e.g., iohexol, iomeprol, iopamidol, iopental, iopromide, ioversol) or iso-osmolar (e.g., iodixanol, iotrolan) contrast medium should be used whenever possible, since the risk of nephrotoxicity may be increased with increasing contrast dose, osmolarity, and ionicity. Some studies suggest a lower risk for iso-osmolar contrasts compared to low-osmolar contrasts, although data are limited. Serum creatinine levels should be measured before contrast administration (if procedure is not urgent) and continued for 24 to 48 hours after. In addition, patients should be adequately hydrated with either intravenous normal saline or sodium bicarbonate starting 3 (outpatient) to 6 (inpatient) hours before and continued for 6 to 24 hours after procedure. Oral fluids are also beneficial, but not as effective as intravenous hydration. N-acetylcysteine the day before and day of contrast administration, or theophylline up to 30 minutes before contrast administration, have also been used in high-risk or critically ill patients. Preferably, a nephrologist should be consulted to optimize prophylactic measures for preventing contrast-induced nephropathy in high-risk patients and to guide treatment if the condition occurs. Any repeat procedures with contrast media, if necessary, should not occur until at least 48 to 72 hours after the previous contrast exposure and renal function has fully recovered.
References
- Bennett WM, Porter GA (1990) "Nephrotoxicity of common drugs used by urologists." Urol Clin North Am, 17, p. 145-56
- Bentley ML, Corwin HL, Dasta J (2010) "Drug-induced acute kidney injury in the critically ill adult: recognition and prevention strategies." Crit Care Med, 38(6 Suppl), S169-74
- Marcos LA, Camins BC, Ritchie DJ, Casabar E, Warren DK (2012) "Acute renal insufficiency during telavancin therapy in clinical practice." J Antimicrob Chemother, 67, p. 723-6
- Dubrovskaya Y, Prasad N, Lee Y, Esaian D, Figueroa DA, Tam VH (2015) "Risk factors for nephrotoxicity onset associated with polymyxin B therapy." J Antimicrob Chemother, 70, p. 1903-7
- Bansal R, Aflieco F, Kaplan AA (2016) Contrast-Induced Nephropathy. http://emedicine.medscape.com/article/246751-overview
- van den Berk G, Tonino S, de Fijter C, Smit W, Schultz MJ (2005) "Bench-to-bedside review: Preventative measures for contrast-induced nephropathy in critically ill patients." Crit Care, 9, p. 361-70
- Kellum JA, Leblanc M, Venkataraman R (2008) "Acute renal failure." BMJ Clin Evid, 9, p. 2001
Drug and food interactions
voclosporin food
Applies to: voclosporin
GENERALLY AVOID: Coadministration with grapefruit juice may increase the plasma concentrations of voclosporin. The mechanism is inhibition of CYP450 3A4-mediated first-pass metabolism in the gut wall by certain compounds present in grapefruits. Because voclosporin prolongs the QT interval in a dose-dependent manner, high plasma levels of voclosporin may increase the risk of ventricular arrhythmias such as ventricular tachycardia, ventricular fibrillation, and torsade de pointes. In drug interaction studies, coadministration with multiple doses of moderate CYP450 3A4 inhibitors fluconazole or diltiazem is predicted to increase the peak plasma concentration (Cmax) and the area under the 12-hour plasma concentration-time curve (AUC 0-12) of voclosporin by approximately 2- and 3-fold respectively. In general, the effect of grapefruit juice is concentration-, dose- and preparation-dependent, and can vary widely among brands. Certain preparations of grapefruit juice (e.g., high dose, double strength) have sometimes demonstrated potent inhibition of CYP450 3A4, while other preparations (e.g., low dose, single strength) have typically demonstrated moderate inhibition. Pharmacokinetic interactions involving grapefruit juice are also subject to a high degree of interpatient variability, thus the extent to which a given patient may be affected is difficult to predict. In addition, moderate-to-high dietary intake of potassium, especially salt substitutes, may increase the risk of hyperkalemia in some patients who are using voclosporin, which has been reported with the use of voclosporin. Patients with diabetes, heart failure, dehydration, or renal insufficiency have a greater risk of developing hyperkalemia.
ADJUST DOSING INTERVAL: Consumption of food can decrease the rate and extent of gastrointestinal absorption of voclosporin. When administered with either low- or high-fat meals, the peak plasma concentration (Cmax) of voclosporin decreased by 29% to 53% and systemic exposure (AUC) decreased by 15% to 25%.
MANAGEMENT: Patients receiving voclosporin therapy should be advised to avoid consumption of grapefruit or grapefruit juice. Voclosporin therapy should be administered at least 1 hour before or 2 hours after meals. Patients should also receive dietary counseling and be advised to not use potassium-containing salt substitutes or over-the-counter potassium supplements without consulting their doctor. If salt substitutes are used concurrently, regular monitoring of serum potassium levels is recommended. Patients should also be advised to seek medical attention if they experience symptoms of hyperkalemia such as weakness, irregular heartbeat, confusion, tingling of the extremities, or feelings of heaviness in the legs.
References
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Therapeutic duplication warnings
No warnings were found for your selected drugs.
Therapeutic duplication warnings are only returned when drugs within the same group exceed the recommended therapeutic duplication maximum.
See also
Drug Interaction Classification
Highly clinically significant. Avoid combinations; the risk of the interaction outweighs the benefit. | |
Moderately clinically significant. Usually avoid combinations; use it only under special circumstances. | |
Minimally clinically significant. Minimize risk; assess risk and consider an alternative drug, take steps to circumvent the interaction risk and/or institute a monitoring plan. | |
No interaction information available. |
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