Yes, for that amount of Exjade, 100 ml liquid would be recommended. When the dose is more than one gram, 200 ml is suggested.
Ferriprox (L1) is a good chelator and gives the most protection to the heart. However, to get the ferritin down, I think it would take a combination with desferal to make good progress. Swelling in the face could be an allergic reaction to Exjade and should be closely monitored. If there is any sign of swelling in the mouth or the tongue, stop Exjade immediately and contact your doctor. I would hesitate to take a higher dose until the swelling is resolved. If the swelling dissipates and is no longer an issue, it may just be a matter of time before you see a drop in ferritin. If the swelling does continue, serious consideration to switching chelators should be given. In terms of effectiveness, the best combination of chelators is L1 and desferal. As with all chelators, tolerance of the drug must be established for long term use. Try raising the amount of liquid to 100 ml, and see if there is less reaction. If the swelling does clear up, make sure her dosage is no less than 30 mg/kg body weight.