What is the ingredients in ivermectin?

Ivermectin isn’t a single chemical “ingredient.” The medicine’s active ingredient is ivermectin itself, which is a mixture of two closely related macrocyclic lactones: ivermectin B1a and ivermectin B1b. Ivermectin B1a is the major component (about 80%), and B1b is the minor component (about 20%). These compounds are produced by fermentation of the bacterium Streptomyces avermitilis and then purified for use as a medication.

If you’re asking about the other ingredients in a specific product (the inactive excipients used in tablets, topical formulations, etc.), those vary by product and country. If you can tell me the exact product name and dosage form (e.g., tablet, topical solution, injectable), I can look up the full ingredient list for that product.