Voltaren and changes in taste or smell
Changes in taste (dysgeusia) or smell (parosmia, anosmia) are an under-recognised side effect category. Some medications produce a metallic taste, a dulling of flavours, or unusual smell perception. Whether Voltaren (Diclofenac) at 25mg, 50mg, 75mg, 100mg causes these changes depends on Diclofenac; the experience is usually benign but can affect appetite and quality of life.
Why taste and smell change on Voltaren
Taste and smell perception relies on receptors in the tongue and nose that are sensitive to systemic medications. Diclofenac can affect taste through several mechanisms: alteration of saliva composition, direct receptor interference, secretion in saliva of medication metabolites, or changes in zinc handling. Diclofenac reversibly inhibits cyclooxygenase enzymes COX-1 and COX-2, with somewhat greater selectivity for COX-2 than ibuprofen and naproxen.
When changes need attention
Mild metallic taste or dulled flavours in the first weeks of Voltaren at 25mg, 50mg, 75mg, 100mg are common and often resolve as the body adjusts. Persistent severe loss of taste or smell, sudden onset, or interference with eating warrants prescriber review — both because the medication may need adjustment and because other causes (zinc deficiency, sinus disease) should be excluded.
Frequently asked questions
Can Voltaren change my taste or smell? ▾
Yes, some users report taste or smell changes on Voltaren at 25mg, 50mg, 75mg, 100mg — typically a metallic or dulled-flavour sensation that develops in the first weeks. The prescribing information for Diclofenac lists frequency in clinical trials. Most cases are mild and resolve.
Will my taste come back when I stop Voltaren? ▾
For most users, taste changes attributable to Voltaren resolve within weeks of stopping the medication. Persistent loss after stopping, or severe loss while on therapy, deserves a clinical evaluation since other causes may be involved.
More on Voltaren
- With alcoholVoltaren and alcohol — is it safe to drink?
- With foodShould Voltaren be taken with food?
- Side effectsVoltaren side effects: common, rare and warning signs
- Dosage guideVoltaren dosage guide: how much to take and when
- OnsetHow fast does Voltaren start working?
- DurationHow long does Voltaren last?
The information on this website is provided for reference and educational purposes only. It does not replace consultation with a qualified healthcare professional.