Depends on whether you have a true lid ptosis

It is very important to determine whether you have a true lid ptosis or brow droop.

If you have a brow ptosis, one eye opening (distance from top lid to bottom lid) is smaller than the other.  In this case it should resolve within 2 weeks and you should be seeing some improvement with Iopidine.

If your brows are "weighting down" your lid skin, this is a injector induced problem from overtreating the forehead (frontalis muscle).  In this case it will take several weeks to 3 months to resolve.