Gaviscon side effect - is this normal?

[PurpleDana]

So my dd has reflux and has been on gaviscon a week. I was warned it may make her constipated but it's actually had the opposite effect! She's now having up to 6 dirty nappies a day. They are pastey/seedy and still pretty much mustard colour so I wouldn't say it's diahorrea, but has anyone experienced this? Does it calm down or do I need to ask the doc for a different medication?

How old is she? Is she having both breastmilk and formula?

She's 14wks and just formula fed.

This happened with my DD. She was a very infrequent pooer (usually weekly!) until she started on gaviscon and things started moving so she went most days. It did settle down looseness wise but continued to be regular.