G GT99 New member Jan 31, 2002 #2 a have heard 2 different opinions one was 2 days....I think thats how long its in the system but I think it is effective for anywhere from 7-15 hours
a have heard 2 different opinions one was 2 days....I think thats how long its in the system but I think it is effective for anywhere from 7-15 hours
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