Goldie… I pay close attention to expiration dates. My current working bottle is 4/24, my new backup is 4/25. Pretty good lead time. I’m also careful about storage; 68-78 degrees, depending upon the season, in a dark linen and medicine closet. What I’m not sure of is whether the expiration changes after opening the bottle; I keep it tightly capped, of course. I don’t use a syringe to pull it out; I take off the cap and pour it into a little 1/4 oz. measuring spoon. That’s my dose. I just mix it in a shot glass with a little fruit juice, and down the hatch.
Maya… That site doesn’t list prices; what are they getting for pharma grade pills? I’m happy enough with my sterile solution, but others I know would probably prefer “human” pills.