Visual, turbidimetric, and particle-content assessment of compatibility of vinorelbine tartrate with selected drugs during simulated Y-site injection
Trissel, L.A.; Martinez, J.F.
American Journal of Hospital Pharmacy 51(4): 495-499
1994
ISSN/ISBN: 0002-9289 PMID: 8017415 Document Number: 431625
The compatibility of vinorelbine tartrate with selected drugs during simulated Y-site administration was studied. A 5-mL sample of vinorelbine tartrate 1 mg/mL in 0.9% sodium chloride injection was combined with a 5-mL sample of each of 91 other drugs at concentrations used clinically. Each combination was prepared in duplicate, with the order of mixing being reversed between the two; storage was in constant fluorescent light at 22 degrees C. The admixtures were examined visually in normal fluorescent light and with a Tyndall beam at zero, one, and four hours after preparation. A turbidimeter was used to measure the turbidity of each drug combination at the same intervals. Samples showing visual or turbidimetric evidence of incompatibility were subjected to particle counting and sizing. The majority of the drugs tested were compatible with vinorelbine tartrate; most combinations had a turbidity of less than 0.1 nephelometric turbidity unit. Turbidity measurements showed that cefazolin sodium, ceforanide, and cefuroxime sodium were incompatible with vinorelbine tartrate. Visual observation showed incompatibility of vinorelbine tartrate with acyclovir sodium, aminophylline, amphotericin B, ampicillin sodium, cefoperazone sodium, ceforanide, cefotetan sodium, ceftriaxone sodium, fluorouracil, furosemide, ganciclovir sodium, methylprednisolone sodium succinate, mitomycin, piperacillin sodium, sodium bicarbonate, thiotepa, and trimethoprimsulfamethoxazole. Vinorelbine tartrate 1 mg/mL in 0.9% sodium chloride injection was compatible with the majority of the drugs tested for up to four hours at 22 degrees C but was incompatible with 19 drugs.