What is the recommended Katsuo Stamina dosage?

Follow the product label and use the schedule for your event. Current guidance: half marathon—4 tablets before the start; marathon—4 before, then 4 every 120 minutes; road ultra—8 before, then 4 every 120 minutes; trail 15–30 km—8 before; trail over 30 km—8 before, then 4 every 90 minutes. Cycling or climbing uses 8 before then 4 every 120 minutes; swimming or rowing uses 4 before then 4 every 60 minutes.