I’m going to check my package because I thought you could use it once a week
I too saw something similar, but on a more recent purchase, I can find NOTHING on the packaging or in the instructions about using it more often than monthly - it now states:I checked the instructions that came with the Advantage II yesterday and it said it could be used before the 4 weeks…it Said the once a month dose was to keep fleas away but if there was a flea infestation you could use it once a week but for only 4 weeks.
"If you have a flea infestation, consider treating your home and yard with appropriate premise products to protect against fleas."
HOWEVER - this is what is still being published on Chewy's web site:
- Under normal conditions this product is effective for a month. However, in cases of severe flea infestation, retreatment may be necessary earlier than 4 weeks. Do not retreat more often than once every 14 days for kittens or once every 7 days for small and large cats. After flea control is attained, return to a monthly retreatment schedule.