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We found 2 questions associated with the 'Pyrethrins' topic.
Piperonyl Butoxide/Pyrethrins - What happens if you leave R and C on longer then ten minutes? Could?
Posted 22 Nov 2016 by • 0 answers
... you leave it on over night?
Posted 23 Apr 2014 by • 1 answer
we have been giving our cat the 5 drops two times a day for about 3 weeks w minimal effects. our question is::: how long should one use this for a healthy 14 year old cat?