<unk>  (trade name Yutopar) is a tocolytic drug used to stop premature labor. This drug has been removed from the US market, according to FDA Orange Book. It was available in oral tablets or as an injection and was typically used as the hydrochloride salt,<unk>  hydrochloride.
Ritodrine
Midodrine
Amixetrine
Minaprine
Methylergometrine
Chloroxylenol
Ergometrine
Erythrocrine