Hi D.,
I'm sorry to hear you're going through this. Our son had really bad reflux, too. Our pediatric GI (at UCSF) had us spend a fortune on Alimentum (and stop with breast milk, which he had been taking for four months). Apparantly breast milk is not always better than special formulas designed for digestive problems (I'm begging the breast milk police to please, please not hassle me; it was tough enough as is). Nutramagen (sp?) also works, but it's vile, and our son ate a lot more w/ Alimentum. I was upset to stop with the breat milk, but the Alimentum did help, and my mom found it for a less atrocious price at WalMart, though I hate to promote thst place :(. We switched from Zantac to Prevacid (disolved pill in a little water and then added it to anything he was drinking -- we just had to be we gave him an amount of liquid he would finish!). He didn't have to take the Prevacid as many times per day as the Zantac, btw. To regulate his GI tract, we went from Reglan to milk of magnesia (which might be enough for your child -- add to bottle as previous poster said) and then finally to Miralax powder. That really worked best. I was so bummed to be giving him meds, but they really helped to decrease the spit-up and horrible pain he was experiencing. As the earlier milk of magnesia poster said, getting poops to come out more easily made a huge difference in decreasing spit-up an pain. If he didn't have a solid poop, though, and seemed to be in pain (sometimes poop made liquidy by m.o.m. can seep around a larger stool in the bowel and it seems like you child is pooping), we had to give him a glycerin enema. They make children's ones, and we only gave him half. He did NOT like getting these, but they were totally miraculous. We only used them in the worst situations (under doctor's orders). Our son had to stay on Prevacid until he was almost three and Miralax until about three and a half. He's totally fine now (he's four and a half). We watched his poop carefully (and had to ask his preschool to do so, too -- that was cute!) so that we could adjust his Miralax for the next day. Most kids grow out of GERD by one year old or so, but not our son. Perhaps it was because he was born 11 weeks early. We also had him sleep in his infant car seat on his bedroom floor (strapped in) for months to keep him more upright. His head was pretty pointy from being born so early (vaginally) with such a soft skull, so while the car seat did flatten is head a bit, it only flattened it to a more typical shape. He slept much better in his car seat. He transitioned easily to his crib and his twin sized bed later own. Not to be alarmist, but I highly recommend you brush up on choking procedures for babies or toddlers, depending on how old your child is. My son once aspirated on his own spit-up about a half-hour after finishing his bottle (Dr. Brown's -- great for reflux, but a huge pain to clean and apparently not so much for the plastic; didn't know at the time; worked better for his reflux than Advent). Luckily, after spending so muh time in the pumping room at the NICU, I had seen the CPR/choking video dozens of times (every time a family took their baby home), and I was able to help him quickly, though I also called the paramedics. I was so glad I had seen that video so many times.
I hope some of this helps and that your child's reflux improves soon. As he/she transitions to solids, the reflux should diminish as well. It didn't go away imediately for us, but our son did FINALLY grow out of it. I agree with others that it feels very uncomfortable to give too much in the way of meds. Personally, I'm a huge fan of acupuncture, herbs, etc., and our son did have cranial work done by a fantastic osteopath However, meds were what worked for our son. Good luck and don't feel guilty about the meds. You're doing what you need to do to keep your child comfortable and gaining weight.