Phillips Milk Of Magnesia saline mint laxative Mint Liquid relieves occasional constipation (irregularity). This product usually produces bowel movement in 1/2 to 6 hours. Per Teaspoon (5 ml): Magnesium Hydroxide 400 mg, flavor, mineral oil, sodium hyprochlorite, sodium saccharin, water. Do not exceed the maximum recommended daily dose in a 24 hour period. Shake well before use.