Packaging and storage
Preserve in single-dose containers, at controlled room temperature.
Labeling
Label it to include the following, in addition to the information specified for
Labeling under
Injections 1: the time and date of calibration; the amount of
99mTc as labeled depreotide complex expressed as total MBq (or mCi) per mL at the time of calibration; the expiration date and time; the storage temperature; and the statement CautionRadioactive Material. The labeling indicates that, in making dosage calculations, correction is to be made for radioactive decay, and also indicates that the radioactive half-life of
99mTc is 6.0 hours.
Bacterial endotoxins 85:
not more than 175/
V USP Endotoxin Unit per mL of the Injection, in which
V is the maximum recommended total dose, in mL, at the expiration date or time.
Radiochemical purity
Separately apply equal volumes (about 10 µL) of Injection, accurately measured, about 1.0 cm from the bottom of each of two 1.5-cm × 10-cm instant chromatographic silica gel strips. Do not allow the plates to dry. Immediately develop the chromatograms by ascending chromatography (see
Chromatography 621), until the solvents reach the top of the strips, using saturated sodium chloride solution as the developing solvent for one strip (
Strip 1), and a mixture of methanol and 1 M ammonium acetate (1:1) for the other strip (
Strip 2). Remove the strips, and allow to air-dry. Cut
Strip 1 at an
RF value of about 0.75, and cut
Strip 2 at an
RF value of about 0.40. Separately record the counts for each portion in a dose calibrator. Calculate the percentage of nonmobile impurities in the portion of Injection taken by the formula:
100CM / (CM + PM),
in which
CM is the count obtained from the bottom portion of
Strip 2; and
PM is the count obtained from the top portion of
Strip 2. Calculate the percentage of Tc 99m pertechnetate, Tc 99m glucoheptonate, and Tc 99m edetate in the portion of Injection taken by the formula:
100PS / (CS + PS),
in which
PS is the count obtained from the top portion of
Strip 1; and
CS is the count obtained from the bottom portion of
Strip 1: not more than 10% of total impurities is found.
Other requirements
It meets the requirements for
Radionuclide identification and
Radionuclidic purity under
Sodium Pertechnetate Tc 99m Injection. It also meets the requirements under
Injections 1, except that the Injection is not subject to the recommendation on
Volume in Container, and except that it may be distributed or dispensed prior to completion of the test for
Sterility, the latter test being started on the date of manufacture.
Assay for radioactivity 821
Using a suitable counting assembly, determine the radioactivity, in MBq (or mCi) per mL, of Injection by use of a calibrated system.
Auxiliary Information
Staff Liaison :
Andrzej Wilk, Ph.D., Senior Scientific Associate
Expert Committee : (RMI05) Radiopharmaceuticals and Medical Imaging Agents 05
USP29NF24 Page 2063
Pharmacopeial Forum : Volume No. 27(3) Page 2583
Phone Number : 1-301-816-8305