For Si-based agent to generate hydrogen, it is essential that the gastrointestinal environment is neutral or alkaline
And reacting at room temperature for 3h, adding 10mL of glacial methyl tert-ether, precipitating a white solid, centrifuging, adding methyl tert-ether to the product, washing for 3 times, washing for 2 times with 10mL of ethyl acetate, drying, and purifying by reversed-phase HPLC to obtain 85mg of semaglutide with the purity of 98.43%, wherein the liquid-phase chromatogram is shown in FIG
19 Furthermore, magnesium trisilicate (found in some Gaviscon preparations) may cause fetal nephrolithiasis, hypotonia, respiratory distress, and cardiovascular impairment if used long-term and at high doses
Cardiovasc Diabetol 20 , 196 (2021)