Medicine side effects in King Charles Spaniels

469 FDA reports name the King Charles Spaniel. These medicines appear most often.

Milbemycin Oxime + Spinosad (Trifexis)
118
Ivermectin + Pyrantel (Heartgard Plus)
83
Afoxolaner (NexGard)
69
Fluralaner (Bravecto)
51
Spinosad (Comfortis)
39