Hey, I've had anti D's before that made me want to eat all day...i wasn't on SW so I gained weight, BUT
You can eat all day on SW and still lose. It may be that the meds increase your appetite, which is fine, but they might play with your bodies ability to store fat or summat, which isn't so easy to counteract.
I personally would have loads of snacking foods in the fridge ready to grab, made from Free and Superfree foods...fruit, yogurt, hummus etc etc And cook big meals that you can freeze/keep in the fridge for later. Keep your food options open
When my mate first started SW she didn't stop eating - i was shocked - she really put food away every hour or so and she made good, if not a little bit slower, progress, which is better than gaining.
Either way though; I hope the meds are getting you through a difficult time, and if you do gain a bit of weight, just remember you are losing lots of mind weight

x