Danish to English Medical Medical: Pharmaceuticals type of tablets

Tabletter (monodepot) er fremstillet således, at [aktivstoffet] frigøres langsomt

These are otherwise ordinary coated tablets, to be swallowed, taken with water etc. etc. with groove for breaking and so on.
Most of the active ingredient is absorbed in the gastro-intestinal tract.

Not capsules, gastro-resistant or anything like that.
I can only find this term in Danish, and have not found enough explanation to start searching in English.

Earlier references to the tablet in Produktresuméer and the like do not seem to use this expression.

So many thanks for any suggestions!