does frontline flea medicine expire?

Asked by Member 1117817 on Jun 27th 2012 in Pet Products
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Like all prescription drugs it does, indeed, expire. The date will be on the crimp of the tube, in addition to appearing on the package itself.
Any mix of drugs such as this can breakdown and either lose effectiveness OR become more toxic with the passage of time.
Obviously, a few months should not make a huge difference if they have been properly stored in a cool, dark, dry place but much over that should be discarded as you would ANY outdated prescription drug for yourself or your family.

Member 641257 answered on 6/27/12. Helpful? Yes/Helpful: No 0 Report this answer


It does not expire if it remains unopened and is stored properly according to the package instructions but like any other drug it does have an expiry date which is mentioned on the crimp or on the cover it comes in.

Member 1107927 answered on 6/28/12. Helpful? Yes/Helpful: No 0 Report this answer