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(2013; 5 pages)
The X-ray fluorescence (XRF) technique was used to determine bromine (Br) concentration in lamivudine/zidovudine/nevirapine (Zidolam-N®) tablets from fourteen batches drawn from different sources. Results showed that Br concentration in falsified drugs was significantly higher than that in the authentic drugs. It was also found that Br concentration in the paper liner of the bottle caps containing the falsified drugs was elevated when compared to the liner from the container holding the authentic drug. In conclusion, falsified (Zidolam-N®) can be rapidly identified using the handheld, portable XRF instrument.