Comparison of weight per volume and protein nitrogen units in non-standardized allergen extracts: implications for prescribing subcutaneous immunotherapy

Table 6 Recommended lowest PNU concentrations for birch, ragweed, dog and Alternaria, based on a weight per volume of 1:200 for both HollisterStier and Stallergenes Greer’s extracts

If concentrations were stronger than 5000 PNU/mL for a 1:200 weight per volume, then a maximum PNU concentration of 5000 was recommended, as indicated by an asterixis (*)

ISSN: 1710-1492