The National Health Service has issued a fresh alert to patients taking specific prescription drugs, highlighting an unusual but common symptom that many may not realise is linked to their medication.
Medications Linked to a Metallic Sensation
On its official website, the NHS has detailed that a persistent metallic taste in the mouth can be a direct side effect of certain treatments. While there are numerous potential causes for this sensory change, the health body specifically points to two widely used drugs: metronidazole and zopiclone.
Metronidazole is an antibiotic prescribed for a range of conditions, including skin infections, dental abscesses, bacterial vaginosis, and infected wounds. It is sold under various brand names such as Acea, Flagyl, Metrogel, and Zidoval.
Zopiclone is a medication used for the short-term management of severe insomnia. Its official information page explicitly lists a metallic taste, dry mouth, and daytime sleepiness as common side effects.
Other Potential Causes to Consider
The NHS stresses that while medication is a key factor, it is not the only one. Patients experiencing a metallic taste should also consider other possible reasons, which include:
- Gum disease or poor oral health.
- Cancer treatments like chemotherapy and radiotherapy.
- Common colds, sinus infections, and other airway problems.
- Indigestion and pregnancy-related changes.
- A lost or altered sense of smell.
"A metallic taste is not usually serious," the NHS advises. "What you can do to get rid of it will depend on the cause."
Steps to Take and When to Seek Help
The guidance provides clear steps based on the suspected underlying cause. For gum disease, improving oral hygiene and regular dental check-ups are crucial. If a medication is suspected, patients must consult a pharmacist or GP and should never stop taking prescribed drugs without professional advice.
For those undergoing chemotherapy, trying stronger-flavoured foods or boiled sweets may help. Symptoms linked to colds, indigestion, or pregnancy often resolve on their own once the primary condition passes.
The NHS strongly recommends booking a non-urgent appointment with a GP if the metallic taste persists without an obvious cause. The warning is clear: if the symptom does not go away, seek medical help.
