Chronopharmacology: Integration of circadian biology in modern pharmacotherapy

Paper Details

Research Paper 07/01/2026
Views (135)
current_issue_feature_image
publication_file

Chronopharmacology: Integration of circadian biology in modern pharmacotherapy

Sangram D. Chikane*, Vishal S. Adak, Shrikant R. Borate, Rajkumar V. Shete, Deepak V. Fajage
Int. J. Biosci. 28(1), 56-64, January 2026.
Copyright Statement: Copyright 2026; The Author(s).
License: CC BY-NC 4.0

Abstract

Chronopharmacology integrates chronobiology with pharmacotherapy to optimize drug administration according to the body’s circadian rhythms. Many physiological processes, including hormone secretion, cardiovascular function, metabolism, immune responses, and cellular proliferation, exhibit predictable daily variations that significantly influence drug pharmacokinetics, pharmacodynamics, efficacy, and toxicity. This review aims to summarize the fundamental principles of chronopharmacology, explain the mechanistic role of circadian rhythms and clock genes in drug response, and highlight its clinical relevance in modern pharmacotherapy. The core components of chronopharmacology—chronokinetics, chronesthesy, and chronotherapeutics—are discussed, emphasizing how biological timing affects drug absorption, distribution, metabolism, elimination, and tissue sensitivity. Clinical applications of chronotherapy across major disease conditions, including cardiovascular diseases, asthma, arthritis, gastrointestinal disorders, cancer, neurological disorders, and metabolic diseases, are reviewed, demonstrating that time-optimized drug administration can enhance therapeutic efficacy while reducing adverse effects. The review also addresses key advantages of chronopharmacology, such as improved disease control and personalized treatment strategies, alongside limitations including interindividual variability in circadian rhythms, complexity of dosing schedules, limited availability of chronotherapeutic formulations, and lifestyle-related circadian disruptions. In conclusion, chronopharmacology represents a promising approach within personalized medicine by aligning drug therapy with the body’s biological clock. With continued research, improved chronopharmaceutical formulations, and integration into clinical guidelines, chronopharmacology has the potential to significantly improve therapeutic outcomes and patient care.

Anandabaskar N. 2019. Chronopharmacology. In: Raj G, Raveendran R (eds.), Introduction to basics of pharmacology and toxicology. Springer, Singapore, pp. 261–270.

Chang DC, Reppert SM. 2001. The circadian clocks of mice and men. Neuron 29, 555–558.

Choudhary D, Goykar H, Rajpoot K, Tekade RK. 2021. Chronopharmacokinetics. In: Biopharmaceutics and pharmacokinetics considerations. Academic Press, New York, pp. 163–194.

Desai VG, Moland CL, Branham WS, Delongchamp RR, Fang H, Duffy PH, Peterson CA, Beggs ML, Fuscoe JC. 2004. Changes in expression level of genes as a function of time of day in the liver of rats. Mutation Research 549, 115–129.

Duncan WC. 1996. Circadian rhythms and the pharmacology of affective illness. Pharmacology & Therapeutics 71, 253–312.

Halberg F. 1969. Chronobiology. Annual Review of Physiology 31, 675–725.

Jones CR, Campbell SS, Zone SE, Cooper F, DeSano A, Murphy PJ, Jones B, Czajkowski L, Ptacek LJ. 1999. Familial advanced sleep-phase syndrome: a short-period circadian rhythm variant in humans. Nature Medicine 5, 1062–1065.

Kaur G, Phillips C, Wong K, Saini B. 2013. Timing is important in medication administration: a timely review of chronotherapy research. International Journal of Clinical Pharmacy 35, 344–358.

Labrecque G, Bélanger PM. 1991. Biological rhythms in the absorption, distribution, metabolism and excretion of drugs. Pharmacology & Therapeutics 52, 95–107.

Lemmer B, Scheidel B, Behne S. 1991. Chronopharmacokinetics and chronopharmacodynamics of cardiovascular active drugs: propranolol, organic nitrates, nifedipine. Annals of the New York Academy of Sciences 618, 166–181.

Moore RY, Eichler VB. 1972. Loss of a circadian adrenal corticosterone rhythm following suprachiasmatic lesions in the rat. Brain Research 42, 201–206.

Ohdo S. 2007. Chronopharmacology focused on biological clock. Drug Metabolism and Pharmacokinetics 22(1), 3–14.

Reinberg A, Halberg F. 1971. Circadian chronopharmacology. Annual Review of Pharmacology 11, 455–492.

Shah AM, Shah SV. 2024. Chronopharmacology: optimizing drug therapy through biological rhythms. National Journal of Physiology, Pharmacy and Pharmacology 14(9).

Tahara Y, Shibata S. 2013. Chronobiology and nutrition. Neuroscience 253, 78–88.

Tei H, Okamura H, Shigeyoshi Y, Fukuhara C, Ozawa R, Hirose M, Sakaki Y. 1997. Circadian oscillation of a mammalian homologue of the Drosophila period gene. Nature 389, 512–516.

Toh KL, Jones CR, He Y, Eide EJ, Hinz WA, Virshup DM, Ptacek LJ, Fu YH. 2001. An hPer2 phosphorylation site mutation in familial advanced sleep phase syndrome. Science 291, 1040–1043.

Youan BBC. 2004. Chronopharmaceutics: gimmick or clinically relevant approach to drug delivery? Journal of Controlled Release 98(3), 337–353.

Related Articles

Protein profiling and antioxidant enzymatic activity of the ethanol extract of Cocculus hirsutus (L.) W. Theob. efficacy against Rhynchophorus ferrugineus

Marimuthu Malarvizhi, Jothi Dheivasikamani Abidharini, Arthi Boro, Murugesan Loganathan, Krishnaswamy Sujatha*, ArumugamVijaya Anand, Int. J. Biosci. 28(2), 222-241, February 2026.

Impact of organic and mineral fertilizers on the growth and biomass production of amaranth (Amaranthus cruentus L.) in Burkina Faso

Sidnoma Marie Emeline Vanessa Sompougdou*, Hugues Roméo Bazié, Philippe Bayen, Caroline Bassono, Int. J. Biosci. 28(2), 210-221, February 2026.

Antimicrobial resistance profiling and molecular characterization of a multidrug-resistant Salmonella enterica serovar Typhimurium from poultry environments in Bangladesh

Rashna Islam, Rubaya, Jahangir Alam, Anjuman Ara Bhuyan, Md. Abdul Alim, M. M. Kamal Hossain, Mir Rowshan Akter, Md. Sagir Ahmed, Shohel Mahmud*, Int. J. Biosci. 28(2), 201-209, February 2026.

Lived experiences, psychosocial challenges and quality of life of drug surrenders

Van Ryan I. Alipoyo*, Int. J. Biosci. 28(2), 184-200, February 2026.

Evaluation of the sensorial quality of peppermint (Mentha piperita) ice cream

Iriz Klir Austria, Michael Sta. Ana, Marigen E. Toraja*, Int. J. Biosci. 28(2), 177-183, February 2026.

Epidemiology of polycystic ovary syndrome among young adult women: A cross sectional analysis

Ch. B. Praveena Devi*, S. Priya, P. Tanvi, S. Swathika, G. Bhavitha Sri, Int. J. Biosci. 28(2), 170-176, February 2026.

Comparative assessment of mixed and intercropping of lentil (Lens culinaris) and sunflower (Helianthus annuus)

Md. Shamim Ahmed*, Mohammad Tojammel Haq, Int. J. Biosci. 28(2), 151-158, February 2026.