Ammonium chloride has several medical applications, primarily related to its properties as an acidifying agent and an expectorant.
Why is Ammonium Chloride Used as an Expectorant?
Ammonium chloride is used in some cough medicines to help loosen mucus in the airways [1]. By irritating the mucous membranes of the stomach, it reflexively stimulates respiratory tract secretions, leading to thinner mucus that is easier to cough up [2].
How Does Ammonium Chloride Work as an Acidifying Agent?
When taken orally, ammonium chloride is metabolized in the liver to produce hydrochloric acid and urea. This process increases the acidity of the body, which can be beneficial in specific medical situations [3].
When is Ammonium Chloride Prescribed for Urinary Acidification?
This acidifying effect is utilized to lower urine pH. This is particularly useful for patients who need to increase the solubility of certain drugs in their urine, such as sulfonamides, to prevent their crystallization and potential kidney damage [3]. It can also be used to treat certain types of metabolic alkalosis [3].
What are the Risks of Using Ammonium Chloride?
While effective for its intended uses, ammonium chloride can cause side effects. These may include nausea, vomiting, stomach pain, and diarrhea [1]. In individuals with kidney or liver disease, or those with metabolic alkalosis, its use requires careful medical supervision due to the risk of acid-base imbalances [3].
Are There Alternatives to Ammonium Chloride?
Depending on the specific medical need, alternative treatments may exist. For expectorant properties, other ingredients are commonly found in cough syrups. For acidifying urine, other agents or strategies might be employed, particularly if contraindications for ammonium chloride are present [3].