A good rule as you return to more movements and loading is to stay well within your fatigue threshold. Something you will see in 10/20/Life is very low RPEs on anything in the off-season. The risk/reward of doing RPE 8 curls even right now is significantly biased. If you clench a little too much you could re-aggravate your back, but going to a 5 or 6 will let you train much safer.
MrKleen73 you’ll want to look for the human studies probably or at least do a bit of in depth reading for GI health because that wasn’t what I was researching it for, but I believe using a 5mg vial over a week, divided into a dose a day on an empty stomach, is a place to start.