- 1PMPB = Pharmacy, Medicine and Poisons Board of Malawi; for registered medicines, the PMPB registration number is given;2facility number as listed in Additional File 1;3at time of analysis;4manufacturing date not stated on packaging; information from the websites of MHRA (http://www.mhra.gov.uk) and HPRA (http://www.hpra.ie/);5assay value out of specification, but deviation from the 90% threshold not statistically significant considering the standard deviation of the measurement