Weleda Digestion Calming Drops 25ml Weleda Digestion Calming Drops 25ml Formerly known as Melissa Comp Drops, Weleda Digestion Calming Drops are designed for the relief of digestive symptoms including nausea, upset stomachs and diarrhoea. The Digestion Calming Drops are also great for bloating and for using after eating. Suitable for vegans.