Advantage mult, nor any chemical poisons for flea contol is safe.
The two active ingredients in Advantage Multi are moxidectin and imidacloprid... both are neurotoxic, carcinogenic poisonous pesticides, sensitizers and irritants that cause terminal cancer, terminal auto-immune disease, terminal neurological disorders, reproductive and birth defects and terminal liver and kidney disease in people.
Natural parasite preventatives are best and safest..