Guarana extract reduced aggregation of rabbit platelets by up to NUMBER@1 percent below control values and decreased platelet thromboxane formation from arachidonic acid by NUMBER@2 percent below control values .

A university study in LOCATION@1 of guaraná extract showed a platelet aggregation decrease of up to NUMBER@1 % of control values and a decrease of platelet thromboxane formation from arachidonic acid of up to NUMBER@2 % of control values .
