| Allergen | Effective doses* | Ineffective doses* | Labeling of United States standardized extracts | Average major allergen content¶ |
| Short ragweed | 4 to 24 mcg Amb a 1 | 0.6 and 2 mcg Amb a 1 | 1:10 w/v (100,000 AU/mL) | 520 mcg/mL Amb a 1 |
| Dermatophagoides pteronyssinus | 3.25 to 12 mcg Der p 1 | 0.7 mcg Der p 1 | 10,000 AU/mL | 67 mcg/mL Der p 1 |
| Dermatophagoides farinae | 10 mcg Der f 1 | Not determined | 10,000 AU/mL | 65 mcg/mL Der f 1 |
| Timothy grass | 15 and 20 mcg Phl p 5 | 2 mcg Phl p 5 | 100,000 BAU/mL | 660 mcg/mL Phl p 5 |
| Bermuda grass | Not determined | Not determined | 10,000 BAU/mL | 225 mcg/mL Cyn d 1 |
| Cat hair or pelt | 11 to 17 mcg Fel d 1 | 3 mcg Fel d 1 | 10,000 BAU/mL | 40 mcg/mL Fel d 1 |
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