In addition to the Hong Kong Department of Health (DH), there are three major features:
The genuine Poon Goor Soe Pei Pa Lo cough syrup, the external box is printed with green characters, which has HK Department of Health Department or overseas approved registration no.
The glass bottle is engraved with two sets of Chinese characters of「潘高壽藥廠」- Poon Goor Soe Medicine Manufactory and「川貝枇杷露」- Pei Pa Lo at each side of the bottle.
The bottle cap is also engraved with「潘高壽」vertically and horizontally across.