Old filling or Meds: If you still have some silver fillings in your mouth and they are becoming worn down and the margins are leaking, you can develop a metallic taste in your mouth. However, a number of medications like the ace inhibitors (lisinopril, zestril) which are commonly used to treat hypertension can cause a metallic taste as well. Also if your gums bleed easily you may taste the iron in the blood.
Answered 2/26/2017
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