Instead you might consider one of the mixed digestive enzyme products on the market. Many contain pancreatin, extracted from the pancreas of cattle or hogs, combined with hydrochloric acid, which can help with digestion of carbohydrates, fat and fiber and may prove helpful when indigestion is due to a shortfall of the enzymes or digestive juices your body normally makes. Many combinations also contain the plant enzymes trypsin, bromelain, amylase, pepsin and papain, all of which aid in digestion of protein. If you're a vegetarian, you can easily find combinations of all-plant source digestive enzymes. Assuming that your problem occurs only after overeating, a couple of herbal teas might be all you need.
Peppermint tea is great for overeating, nausea, indigestion and some cases of heartburn.
I'd suggest buying pure peppermint tea, brewing it in a covered container to retain the volatile components and then drinking it either hot or iced. In general, peppermint tea soothes the lining of the digestive tract, but it can also aggravate esophageal reflux syndrome by relaxing the muscular ring at the junction of the esophagus and the stomach. If you suffer from reflux, then chamomile tea might be a better choice for soothing the discomfort of overeating. Perhaps the best treatment for indigestion following big meals is not to eat so much. Other common causes of indigestion are eating too quickly, eating high-fat foods or eating while under stress.