Drug-induced taste disorders
Richard L Doty1, Muhammad Shah, Steven M Bromley
1Smell and Taste Center, University of Pennsylvania School of Medicine, Philadelphia, Pennsylvania, USA. doty@mail.med.upenn.edu
Drug Safety
|February 28, 2008
Summary
Many medications can cause long-lasting taste disturbances, impacting quality of life and treatment adherence. More research is urgently needed to understand and manage these drug-related chemosensory side effects.
Area of Science:
- Pharmacology
- Neuroscience
- Sensory Science
Background:
- Medications can cause significant taste disturbances, affecting quality of life and treatment compliance.
- These drug-induced taste alterations can range from reduced function to phantom tastes and may persist long-term.
- Existing scientific data on the incidence and prevalence of these chemosensory side effects is limited.
Purpose of the Study:
- To review common drug-related taste disturbances.
- To identify major medication classes associated with taste alterations.
- To highlight the need for further research into drug-induced chemosensory dysfunction.
Main Methods:
- Literature review of drug-related taste disturbances.
- Analysis of medication classes linked to taste alterations.
- Discussion of factors influencing susceptibility and management challenges.
Main Results:
- Antihypertensives, antimicrobials, and antidepressants are among common drug classes causing taste disturbances.
- Individual susceptibility varies based on factors like sex, age, body mass, and genetics.
- Lack of comprehensive data hinders understanding of the true scope of the problem.
Conclusions:
- Drug-related taste disturbances are an under-researched issue with significant patient impact.
- Management strategies are needed, but discontinuing essential medications is often not feasible.
- Increased physician, researcher, and manufacturer awareness is crucial for advancing research and patient care.
Related Concept Videos
Taste Buds and Receptors
Gustation, or the sense of taste, is intrinsically linked to the anatomical structures located on the tongue. This organ's surface, along with the entirety of the oral cavity, is adorned with stratified squamous epithelium. Evident on the tongue are elevated structures known as papillae (singular = papilla), which house the mechanisms for the transduction of gustatory stimuli. Four distinct types of papillae exist, each identified by their unique morphological attributes: the circumvallate,...
The Physiology of Taste
The perception of a salty flavor is facilitated by sodium ions within the oral salivary fluid. Upon consumption of a salty substance, salt crystals disassemble, leading to the liberation of its constituents—Na+ and Cl- ions. These ions subsequently dissolve into the salivary fluid present in the oral cavity. The external environment of the gustatory cells experiences an elevation in Na+ concentration, thereby establishing a potent concentration gradient. This gradient propels the diffusion of...
Conditioned Taste Aversion
Conditioned taste aversion, also known as sauce béarnaise syndrome, is a phenomenon in which an individual develops an aversion to a certain food taste following a negative experience, typically illness. This form of aversion is a type of classical conditioning in which the taste of the food (conditioned stimulus, CS) is associated with the experience of illness (unconditioned stimulus, UCS).
A notable characteristic of conditioned taste aversion is that it often requires only a single exposure...
A notable characteristic of conditioned taste aversion is that it often requires only a single exposure...
Drug Toxicity: Dose-Dependent Reactions
Drug toxicities can be stratified into pharmacological, pathological, or genotoxic based on their mechanisms. The incidence and severity of these toxicities generally increase with the drug's concentration in the body and exposure time.Pharmacological toxicity is evident when the therapeutic effects of drugs overshoot into adverse reactions in a predictable, dose-dependent manner. Central nervous system (CNS) depression from barbiturates is a classic example, with effects escalating from...
Drug Dependence
Medications are typically administered to achieve therapeutic effects. Some drugs can modify an individual's mood and perception, frequently resulting in various enjoyable experiences. However, this can result in drug dependency, a condition marked by continuous drug use despite potential negative consequences. Drug dependency primarily falls into two categories: psychological and physical dependence. Psychological dependence occurs when the pleasurable feelings induced by the drug...
Chemotherapy-Induced Nausea and Vomiting: Dopamine Receptor Antagonists
Dopamine receptor antagonists, also known as antipsychotic agents, are critical in managing chemotherapy-induced vomiting. These antiemetic agents block dopamine receptors in the chemoreceptor trigger zone (CTZ), inhibiting signal transmission to the vomiting center. Antipsychotic agents encompass phenothiazines (PTZ), butyrophenones, benzamides, and thienobenzodiazepines (Zyprexa), which are utilized for their antiemetic and sedative properties.
Phenothiazines, such as prochlorperazine...
Phenothiazines, such as prochlorperazine...


