Metallic Taste in Mouth: Causes, Symptoms & Medical Connections

A metallic taste in the mouth, or dysgeusia, is a common side effect of a wide variety of medical treatments and medications, and is sometimes a symptom of a medical condition.

Medications

• Common medications like Clarithromycin, which treats respiratory infections and ulcers, and Captopril, which treats high blood pressure, heart failure and kidney problems, can cause a metallic taste.

Lead Poisoning

• Lead poisoning can cause a metallic taste in the mouth, along with loss of appetite, headache, personality changes and abdominal pain.

Mercury Poisoning

• One symptom of mercury poisoning is a metallic taste. Mercury poisoning can occur by eating seafood with high mercury levels, and getting fillings or vaccines that contain mercury.

Oral Conditions

• Disorders and conditions of the mouth are a common cause of a metallic taste and include periodontis, gingivitis, infections and general poor oral hygiene.

Supplements

• Mineral and vitamin supplements, such as prenatal vitamins and selenium, can also cause a metallic taste.