This item doesn’t have an expiration date, but rather a manufacturers date on the box. After two years, this item may start to lose its potency, but it doesn’t expire.

Can you use expired K9 Advantix?

answered “K9 Advantix does not have an expiration date as long as you store unused containers in their original packaging and at room temperature.” Use your own best judgement.

How long is K9 Advantix good for?

A single application of K9 Advantix® II remains effective for four weeks. However, if the dog has a severe infestation, re-treatment within a month may be necessary; dogs should not be re-treated more than once every seven days. After flea control is attained, return to a monthly treatment schedule.

Is it safe to use expired flea medicine?

A medicine should not be used after its use by, best before or expiry date. The flea sprays are guaranteed to be safe and effective if used in accordance with their label instructions; this includes the use by date. After this time, the safety and effectiveness of the treatment may be reduced.

Does Advantage for dogs expire?

Advantage®II does not expire.