-
DE
Tachyphylaxis – When Drugs Lose Their Effect Rapidly
Tachyphylaxis is the rapid loss of drug response after repeated use. Common with nasal sprays, antidepressants and hormone therapy.
Add as Preferred SourceThings worth knowing about "Tachyphylaxis"
Tachyphylaxis refers to the rapid loss of efficacy of a drug after repeated use, typically within hours to days.
Unlike gradual drug tolerance, tachyphylaxis develops suddenly and is often seen with nasal decongestants, antidepressants (SSRIs), beta-blockers, and hormonal agents.
The underlying cause is usually receptor desensitization or downregulation—meaning fewer receptors are available or responsive. As a result, patients may no longer experience therapeutic benefits despite consistent dosage. For example, nasal sprays can lead to rebound congestion due to overuse and tachyphylaxis.
Preventing tachyphylaxis involves treatment breaks, drug rotation, or switching to non-pharmacological options. In the case of SSRIs, tachyphylaxis may indicate adaptive changes in CNS receptors and require therapeutic reassessment.
Medical Implications of Tachyphylaxis
- Sudden loss of drug effect despite unchanged dosing
- Common with nasal sprays, antidepressants, hormones, beta-blockers
- Caused by receptor desensitization or reduced receptor availability
- Avoidable through intermittent use or switching medications
- May signal need for clinical reevaluation in psychiatric or endocrine therapy
Literature references:
- Gainetdinov, R. R. et al. (2004). Desensitization of G protein–coupled receptors and neuronal functions. Annual Review of Neuroscience.
- Benedetti, F. et al. (2022). Antidepressant tachyphylaxis: Clinical relevance and underlying mechanisms. Frontiers in Pharmacology.
- Eccles, R. (2007). Mechanisms of the symptoms of rhinitis. Clinical & Experimental Allergy.
Building Blocks for a Healthy Life
As an integrated manufacturer, we develop & produce evidence-based, patented, and non-patented formulations. We work exclusively with plant and natural extracts according to the strictest purity & quality standards.
The combination of science & modern technology with the laws of nature creates solutions consistently tailored to humans – for the highest good: health.
Skip product gallery
Subscription available
Floral
For Healthy Oral Flora & Dental Care
Formulated lozenges with Dentalac®, lactic acid bacteria, and Lactoferrin CLN®30 lozenges
Regular price:
€22.90
Discount
Subscription available
Lactoferrin 60 Capsules
For your universal protection
As one of the most valuable proteins in the body, lactoferrin is a natural component of the immune system.
60 Capsules
Sale price:
€50.00
Regular price:
€59.90
Discount
Subscription available
Multivitamin Mineral Complex
Daily basic supply: the complete spectrum of micronutrients
Natural multivitamin complex for the immune system, energy, and central body functions
30 Capsules
Sale price:
€27.90
Regular price:
€29.90
Subscription available
Natural Iron
For your iron balance
Specially formulated for your iron balance with plant-based curry leaf iron, Lactoferrin CLN®, and natural Vitamin C from rose hips.
30 Capsules
Regular price:
€35.90
Most read entries
3 Posts in this encyclopedia categoryMagnesiumcarbonat
Magnesiumcarbonat ist eine anorganische Magnesiumverbindung mit säure-neutralisierender (antazidischer) Wirkung. Erfahre mehr über Vorteile, Einsatzgebiete und Unterschiede zu besser resorbierbaren Magnesiumformen.
Calorie content
The choice of food influences our energy intake. The calorie content varies greatly - some provide little energy, others a lot.
Cologne list
The Cologne List ® is an important initiative in competitive sports that offers athletes guidance in the selection of nutritional supplements.