Regarding Prunelax, this is basically a laxative similar to Senokot. The ingredients are listed below with this statement: Contains prune extract for flavoring. Just FYI, since it doesn't contain enough prunes to do anything for constipation. I found out I have a redundant colon after a colonoscopy. Just recently I began having constipation issues, possibly as a side effect of medications. I take 4 oz of prune juice in the morning, and a dose of Miralax every day and this is helping me. Prunelax Medicinal ingredient: Each tablet contains Senna leaf extract (Cassia angustifolia) 75 mg. Non-medicinal ingredients: Croscarmellose sodium, Sodium lauryl sulfate, Magnesium stearate, Carmine, Silicon dioxide, Microcrystalline cellulose, Plum Flavor, FD&C Blue N°2 Aluminum Lake, Talc, Polyvinyl alcohol, Titanium dioxide, Macrogol. This product does not contain mercury. Contains prune extract for flavoring.