Hi, So glad that stone passed for your friend. I haven't had that problem. I don't tolerate Epsom Salts well so I have been working strongly with alternate dissolve and pass. My first thought in that emergency would be a coffee enema or just a good strong cup of coffee, or both! Niacin is dialator that is easy to source locally. It can be hard to get the right kind of malic acid at the local health food store so I discovered Nerds Rainbow flavor candy at the local dollar store for emergencies. I suck the malic acid and dextrose off the outside and spit out the hard sucrose crystal centers. Citrus rind is high in terpenes, stone dissolving chemicals. Peppermint oil or tea is also easy to get. Ethnic groceries are a good place to get herbs. Boldo at the Mexican and fennel and cardamon at the Indian quickie mart with fresh grated ginger from anywhere. Chamomile tea is nice. I almost forgot, Genetically-Modified-Organisms free lecithin thins the bile. Lecithin is usually soy oil derived and there is lecithin in olive oil. It helps to do the nice vegan fruit and vegetable diet before the purge so your body is healthy and strong for this.