| Elecampane, mullein, or ivy | 25% (stimulating expectorants) |
| Fennel or ginger | 25% (mucolytic expectorants) |
| Lobelia for acute exacerbation, khella (Ammi visnaga) for long-term use | 15% (antispasmodics) |
| Iceland moss or marshmallow | 20% (demulcents) |
| Pyrrolizidine alkaloid (PA)–ree butterbur or licorice | 15% (antiallergics) |
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