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Containment ventilated enclosure (CVE) or biological safety cabinet (BSC), mortar and pestle, graduated cylinder
Caution: Hazardous Drug—Non-antineoplastic hazardous drug: Must be prepared in compliance with USP <800>.
Triturate tablets to a fine powder with a mortar and pestle.
Levigate powder with a small amount of vehicle to form a paste.
Add vehicle in increasing amounts while mixing thoroughly.
Transfer contents of the mortar to a graduated cylinder.
Rinse the mortar and pestle with vehicle and pour into graduated cylinder.
Add vehicle to the graduated cylinder to achieve the total volume indicated above.
Transfer contents of the graduated cylinder into an appropriately sized amber bottle.
Shake well to mix.
Special Instructions — *Mix 60 mL of Ora-Plus with 60 mL of Ora-Sweet. Use mixture as vehicle or use Ora-Blend.
Quality-Control Procedures — Visually inspect for physical appearance of formulation and container closure integrity (no leakage, cracks in container, or improper seals).
Labeling Requirements — Extemporaneously compounded preparation. Caution: hazardous drug. For oral use only. Store in refrigerator. Shake well before use.
Storage Conditions/Stability — Refrigerate. Stable for 35 days.
Study Container Type — Amber glass bottle
Referenced Manufacturers — Valganciclovir hydrochloride tablets (Roche Laboratories, Inc); Ora-Plus, Ora-Sweet (Paddock Laboratories, LLC).
Stability-Indicating Study — Yes
Commercially available as a 50-mg/mL solution — Use extemporaneously prepared formulation only when commercial product is unavailable or a more dilute suspension is desired.
Henkin CC, Griener JC, Ten Eick AP. Stability of valganciclovir in extemporaneously compounded liquid formulations. Am J Health Syst Pharm. 2003;60:687–690.
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