is 1.33 MB, has a resolution of 1024x800 pixels and was uploaded on September 6, 2019 @ 5:16 pm by user: marcoer. It is filed under the tags: mitragyna speciosa, opioid receptor, pharmaceutical drug, soil, stimulant. Click the blue button at the top to freely download: Mitragyna Speciosa Mitragynine Opioid Receptor Pharmacology png.