I take triamterene and in the last month my potassium level has become very low. My doctor said they have seen a number of patients at their clinic who take triamterene, which is the generic diazide, and recently they have all had the same experience I have. These patients normally have normal potassium levels, as do I, however, they are suddenly low in potassium also. I am having to take potassium chloride. My doctor suggested that there was possibly a bad batch.