Just saw your post and hate to do this when so tired but here you go.
200 mcg per Kg =2.205 lbs or = 1 lb , was the recommended dose but they’re moving things around on necessity but this is a normal strengths.
There is 1000 mcg in a mg.
160 lbs equal aprox rounded down ( 72.5 kg times 200 mcg) = 14,500
14,500 mcg divided by 1000 = 14.5 mg
See if you can see what’s exactly in that one you have.
Since it isn’t a gel and works well with fat for absorption you can eat something first maybe even carbs like oatmeal or bread and chase it with something because it probably won’t taste very good. I think it’s good not to take on empty stomach IMO
Maybe take a very small amount but keep track of that amount and subtract it if you take the whole dose wait awhile see how you feel.