Buy Wockhardt  Syrup. The recommended dose of Promethazine HCl Syrup is 25 mg. Each bottle contains 10 mg/5 ml phosphate and 6.25 ml/5 ml of promethazine hydrochloride. Ingredients of cough syrup when mixed with flavoring ingredients make their transition to lean. when they are. Ingredients often including sugary soft drinks and candy. Thus “dirty Sprite” or “dirty soda” could be an alternative name of Lean. Sugary flavoring helps make the sticky-sweet taste of cough syrup more palatable.  Purified Water, Sodium Citrate Dihydrate, Edetate Disodium, Sodium Benzoate, Sodium Propionate, Saccharin Sodium, Ascorbic Acid, Liquid Sugar, Glycerin, Citric Acid Anhydrous, Dehydrated Alcohol; Methylparaben, F, D & C Red #40, F, D, & C Blue #1, D & C Red #33, Artificial Raspberry Flavor. All concentrations are in percent by weight unless ingredient is a gas.