Lisinopril and taste changes
Why ACE inhibitors like lisinopril can change your sense of taste, when the effect usually fades, and what to do if it does not.
Never start, stop, or change a medication based on what you read here. Bring questions to your dentist, physician, pharmacist, or prescribing clinician.
Quick answer
Lisinopril can cause altered taste, including a metallic taste, reduced taste sensitivity, or food tasting strange. This is a known side effect of ACE inhibitors as a class. It usually appears in the first few weeks and resolves on its own, but a minority of patients have persistent changes. Lisinopril does not cause the gum overgrowth seen with calcium channel blockers like amlodipine, but it does affect a related cluster of oral side effects (cough, taste, rarely angioedema).
The mechanism
Why lisinopril affects taste
Lisinopril works by blocking the angiotensin-converting enzyme (ACE), which lowers blood pressure. ACE also helps regulate zinc metabolism in the body, and zinc is essential for normal taste perception. ACE inhibitors can subtly disrupt this balance, leading to taste changes in a small percentage of users.
The most common report is a metallic or bitter taste, sometimes accompanied by reduced ability to taste sweetness or saltiness. Foods can taste flat or different from before. Some patients also describe a persistent unusual aftertaste even when not eating.
Taste sensation is also affected by saliva flow. Lisinopril is associated with mild dry mouth in some patients, which compounds the taste change. The combination is usually mild but can be enough to make some foods unappealing, which occasionally leads to weight loss in elderly patients.
Practical steps
What to do about a taste change on lisinopril
Signs to watch for
When to call your dentist
- A taste change that does not improve after eight to twelve weeks.
- A new sore or ulcer in the mouth that does not heal in two weeks.
- Sudden swelling of the lips, tongue, or throat (this is a medical emergency, possibly angioedema, not a routine dental issue).
- Persistent bad breath even with good hygiene.
- Localized bad taste from one specific spot, which usually means an infected tooth or gum.
Common questions
What patients ask about Lisinopril and taste changes
KYT Framework
KYT Framework connection
Four questions that shape how Lisinopril and taste changes factor into dental planning.
Structure
Does taste changes change bone, gum tissue, saliva, enamel, or healing support?
Force
Will chewing, grinding, or bite pressure create added risk for vulnerable teeth or healing tissue?
Timing
Is taste changes something to prevent now, monitor, or evaluate soon?
Stability
What plan gives the mouth the best chance to stay stable?
Next steps
What to do about taste changes
The medication side is usually not the right thing to change. The dental side is. Here is where to go next.
More about Lisinopril
Other medications and taste changes
Taking Lisinopril and noticing taste changes changes?
Bring your medication list. KYT can evaluate cavity risk, gum health, and treatment timing in person.
Reviewed by Dr. Isaac Sun, DDS · KYT Dental Services · Fountain Valley, CA · Last reviewed: June 2026
This page is general patient education. It does not replace advice from your prescribing clinician, physician, pharmacist, or dentist. Medication information may change; verify with your clinical team.