Oral (coated bead) dosage form for sodium iodide I-131

Details Oral (coated bead) dosage form for sodium iodide I-131 Oral (coated bead) dosage form for sodium iodide I-131

1989-11-28

1991-09-17

Maples, John S.

Drug, bio-affecting and body treating compositions

Radionuclide or intended radionuclide containing; adjuvant...

252645, 128659, A61K 4300, C09K 1104, A61N 500

Patent

active

050493744

ABSTRACT:
A stabilized oral pharmaceutical bead dosage form of sodium iodide I-131 is described. The sodium iodide I-131 is dissolved in a polymer film and the polymer film is applied by conventional coating technology which affixes the sodium iodide I-131 to inert substrate beads. The film also stabilizes the sodium iodide I-131 from chemical degradation.
The utility of the bead dosage form is that it provides a decreased radiation hazard over that of handling a sodium iodide I-131 liquid. At the time of manufacture a specified amount of sodium iodide I-131 is applied to the substrate beads. The sodium idoide I-131 containing beads are then stored appropriately until dispensed by the pharmacist or physician. The key advantage of this system is that dispensing flexibility is maintained because as the sodium iodide I-131 undergoes radioactive decay the pharmacist or physician can compensate for the loss by dispensing a larger quantity of the coated beads to constitute the prescribed sodium iodide I-131 dose. Then just prior to patient administration, the beads can be filled into a single hard gelatin capsule of if the patient prefers, the beads can be dispensed in water, orange juice, apple sauce or any suitable liquid or food intended for oral administration.
This dosage form described herein minimizes the radiation hazard from the time of manufacture to the time of administration, provides dosing flexibility to the pharmacist and physician and offers the patient numerous options in terms of dosage form administration.

REFERENCES:
patent: 3121041 (1964-02-01), Stern et al.

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