Desferal works best when taken over a longer period of time. The best way to do this is to dilute it more. 2000 mg in 20 ml water is more effective than using half the liquid. Is it possible to use a bigger syringe with your pumps?
Also, taking desferal 3 or 4 times a week is not enough and is why the ferritin increases. Desferal should be taken 5-6 times weekly if it is the only chelator being used. I know it's a burden, but there isn't much choice. Make sure you are taking up to 250 mg vitamin C along with your desferal, as it does increase the amount of iron removed. Also, drink tea with every meal to help inhibit iron absorption from food. If you do have L1 available where you are, try it out. There is no longer any doubt that L1 is the superior chelator at removing iron from the heart, where it does its most damage. Study after study has shown that L1 is superior, and that combination with desferal is the most effective chelation method. One bit of advice with L1. Do not start on the maximum dosage. Start out slowly and allow your body to become accustomed to the new drug. It will greatly reduce the amount of discomfort in the digestive system. And always follow the most important rule of using L1. Get your white blood cell count tested at least every two weeks and preferably, every week.