Pramiracetam powder was developed by Parke-Davis way back in the 1970s and patented in the US in 1979.
ຝຸ່ນ Pramiracetam ໄດ້ຖືກພັດທະນາໂດຍ Parke-Davis ກັບຄືນໄປບ່ອນໃນ 1970s ແລະມີສິດທິບັດໃນສະຫະລັດໃນ 1979.