Discard the vial at 28 days post-first-use regardless of remaining volume
That really depends on the aesthetic you are looking for
If side effects are troublesome, discuss alternatives with your prescriber rather than stopping treatment independently
In the elderly, age-related oxidative stress is multifactorial, marked by increased production of free radicals, reduced activities of antioxidant enzymes, diminished antioxidant levels, and weakened repair of oxidative damage (Rybka et al., 2011)
Tolerance development While there is potential to develop tolerance for gastrointestinal side effects over time, this demands consistent adherence and careful dose titration
A series of PA concentrations (0.125, 0.25 and 0.5 mmol/L) were used for 24 h incubation to induce endothelial dysfunction