Tolvaptan 7.5mg tablets
Requires a prescription from a doctor or prescriber
Tolvaptan is used to treat low blood sodium levels (hyponatremia) associated with various conditions like congestive heart failure, cirrhosis, and syndrome of inappropriate antidiuretic hormones (SIADH).
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MHRA alerts for Tolvaptan
Safety monitoring data
Yellow Card reports
The MHRA Yellow Card scheme collects reports of suspected side effects from healthcare professionals and patients. View the Drug Analysis Profile (iDAP) for real-world adverse reaction data.
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Suspected adverse reactions reported for Tolvaptan
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Data from the MHRA Yellow Card scheme. A reported reaction does not necessarily mean the medicine caused it. Contains public sector information licensed under the Open Government Licence v3.0.
EudraVigilance
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Suspected adverse reactions reported for Tolvaptan
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1 branded products available
MHRA licensed products
View all licensed products for Tolvaptan on the MHRA register
Samsca 7.5mg tablets
This is the NHS Drug Tariff indicative price used for reimbursement purposes. It may not reflect the price paid by patients or pharmacies.
View full Drug TariffSource: NHS Drug Tariff via NHSBSA. Derived from dm+d VMPP (Virtual Medicinal Product Pack) pricing data. Contains public sector information licensed under the Open Government Licence v3.0.
WHO defined daily dose (DDD)
30 mg
Not a recommended dose. The DDD is the assumed average maintenance dose per day for a drug used for its main indication in adults. It is a statistical measure used for research and comparison purposes only.
Source: WHO Collaborating Centre for Drug Statistics Methodology, distributed via the NHS dm+d supplementary mapping files (NHSBSA). Contains public sector information licensed under the Open Government Licence v3.0.
Therapeutically similar medicines
Similarity is based on WHO Anatomical Therapeutic Chemical (ATC) classification and on a factual NHS dm+d therapeutic-grouping code prefix. Source data: NHS dm+d via TRUD (OGL v3.0), WHO ATC/DDD Index.
NHS prescribing volume and spending trends
Guidelines from the National Institute for Health and Care Excellence
NICE clinical guidance(3)
Tolvaptan for treating autosomal dominant polycystic kidney disease (TA358)
Roxadustat for treating symptomatic anaemia in chronic kidney disease (TA807)
Finerenone for treating chronic kidney disease in type 2 diabetes (TA877)
Source: National Institute for Health and Care Excellence (NICE). Contains public sector information licensed under the Open Government Licence v3.0.
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Codes for healthcare professionals and prescribing systems
These codes are used by healthcare IT systems and prescribers to identify this medicine.
NHS UK identifiers
Browse tools
SNOMED CT and dm+d codes from NHS TRUD (Technology Reference data Update Distribution), licensed under the Open Government Licence v3.0. ATC codes from the WHO Collaborating Centre for Drug Statistics Methodology (whocc.no).
Active and completed clinical studies from ClinicalTrials.gov
Source: ClinicalTrials.gov, a database of the U.S. National Library of Medicine (NLM), National Institutes of Health (NIH). Data accessed via ClinicalTrials.gov API v2. Trial information is provided for research purposes and does not constitute medical advice.
Academic studies and reviews for this medicine's active substance
Showing the 50 most relevant studies.
Reviews & meta-analyses: 21 · Randomised trials: 21 · 2007–2026
Showing the 50 most relevant studies, sorted by most relevant.
R. Gansevoort, M. Arıcı, T. Benzing, et al.
Nephrology Dialysis Transplantation, 2016
Vireza Pratama, J. Budiono, J. A. Thobari, et al.
Frontiers in Cardiovascular Medicine, 2024
Yujing Pan, Haoyang Li, Jin Gao, et al.
Systematic Reviews, 2023
Cannatà A, Anastasia G, De Marzo V, et al.
2026
- Kidney
- Diuretics
- Heart Failure
AimsSeveral diuretic strategies, including furosemide i.v. boluses (FB) or continuous infusion (FC), are used in acute heart failure (AHF).Methods and resultsWe systematically searched phase 3 randomized clinical trials (RCTs) evaluating diuretic regimens in admitted AHF patients within 48 h and irrespective of clinical stabilization. We calculated the odds ratio (OR) of FC or FB plus another diuretic (sequential nephron blockade, SNB) compared to FB alone on 24 h weight loss (WL) and worsening renal function (WRF), with a random-effects model with inverse variance weighting. Urine output, hypokalaemia, hyponatremia, and all-cause mortality/rehospitalization were secondary endpoints. In 25 selected RCTs (7149 patients, mean age 68.9 ± 8.7 years, mean left ventricular ejection fraction 38.2 ± 10.7%), FC [OR 1.55 (95% confidence interval 1.39-1.63)], FB plus tolvaptan [OR 1.57 (1.39-1.77)], FB plus SGLT2i [OR 1.23 (1.06-1.42)], and FB plus thiazide [OR 1.63 (1.37-1.94)] were associated with greater WL than FB. FB plus SGLT2i [OR 1.52 (1.19-1.94)] and FB plus acetazolamide [OR 1.81 (1.31-2.49)] were associated with WRF. FB plus thiazide was associated with both WRF [OR 1.78 (1.43-2.21)] and hypokalaemia [OR 1.69 (1.32-2.16)]. Results were consistent in sensitivity analyses considering urine output, RCTs protocol-established furosemide doses, or daily furosemide dose. Congestion/decongestion scores and clinical outcomes were reported in around 50% of RCTs. In an underpowered exploratory analysis, mortality/rehospitalization was non-significantly lower with SGLT2i [OR 0.45 (0.19-1.07)].ConclusionFC and SNB improve surrogates of response to FB in AHF. SNB is also connoted by WRF and may induce hypokalaemia. The endpoints of diuretic RCTs should be revised and harmonized.
Abstract licence: CC BY
Tantush A, Ben Hamida B, Sagher M, et al.
2026
Autosomal dominant polycystic kidney disease (ADPKD) is the most common inherited kidney disorder, with tolvaptan remaining the primary disease-modifying therapy. SGLT2 inhibitors have demonstrated robust renoprotection across the chronic kidney disease (CKD) spectrum, yet patients with ADPKD have been systematically excluded from pivotal trials due to concerns over vasopressin-mediated cystogenesis. This systematic review and meta-analysis aimed to pool available evidence on SGLT2 inhibitor use in patients with ADPKD. This systematic review and meta-analysis were registered with PROSPERO (CRD420261324155) and conducted in accordance with Preferred Reporting Items for Systematic Reviews and Meta‑Analyses (PRISMA) guidelines. Five databases were searched through February 2026 for studies including ADPKD patients receiving any SGLT2 inhibitor. Quality was assessed using the Risk of Bias 2 (RoB2), Newcastle-Ottawa Scale, and Joanna Briggs Institute (JBI) tools, depending on the study design. Eight studies encompassing 3,180 patients were included, comprising one randomized controlled trial (RCT), one target trial emulation study, and six retrospective observational studies. In comparative analyses, SGLT2 inhibitor use was associated with a statistically significant attenuation of estimated glomerular filtration rate (eGFR) decline (pooled mean difference {MD}: 1.344 mL/min/1.73 m²/year; 95% CI: 0.836-1.852). A significant hemoglobin increase was observed in both comparative (MD: 0.66 g/dL) and single-arm analyses (MD: 0.55 g/dL). Subgroup analyses suggested a greater eGFR benefit in non-diabetic patients, though differences were not statistically significant. Our findings suggest that SGLT2 inhibitors may attenuate eGFR decline and improve hemoglobin in ADPKD, with the initial eGFR dip representing a class effect rather than harm, supporting their prospective evaluation in dedicated randomized trials. These findings should be interpretedwith cuchion the predominantly observational study designs, heterogeneous patient populations.
Abstract licence: CC BY
Leaman A, Liu L, Alashqar MT, et al.
2026
Many patients hospitalized with acute heart failure (AHF) do not respond adequately to initial intravenous loop diuretic therapy, and residual congestion at discharge is associated with adverse outcomes. We conducted a systematic review and meta-analysis of randomized controlled trials comparing loop diuretics alone versus loop diuretics in combination with add-on pharmacotherapy in adults hospitalized with AHF. PubMed, Embase, and CENTRAL were searched from inception to May 7, 2025. Efficacy outcomes included mortality, hospital readmission, hospital length of stay (LOS), change in body weight, and urine output (UO). Safety outcomes included worsening renal function, worsening heart failure (WHF), hypokalemia, and serious adverse events. Twenty-four randomized studies were identified, with 22 included in the meta-analysis. Sodium-glucose cotransporter 2 (SGLT2) inhibitors significantly reduced mortality [risk ratio (RR), 0.60 (95% confidence interval [CI], 0.38-0.94)], WHF [RR, 0.64 (95% CI, 0.43-0.96)], serious adverse events [RR, 0.74 (95% CI, 0.60-0.92)], and body weight [mean difference (MD), -1.05 (95% CI, -1.97 to -0.13) kg]. Tolvaptan was associated with greater weight reduction [MD, -0.98 (95% CI, -1.25 to -0.70) kg] and increased UO [MD, 1.15 (95% CI, 0.16-2.14) L]. Add-on hydrochlorothiazide (HCTZ) increased UO [MD, 0.95 (95% CI, 0.47-1.43) L] and decreased LOS [MD, -1.38 (95% CI, -2.40 to -0.36) days] but increased the risk of worsening renal function [RR, 2.03 (95% CI, 1.10-3.74)] and hypokalemia [RR, 2.31 (95% CI, 1.51-3.52)]. Overall, the combination with SGLT2 inhibitors, tolvaptan, and HCTZ improved surrogate markers of decongestion in AHF. SGLT2 inhibitors were associated with reduced mortality and WHF, whereas HCTZ shortened hospital LOS but increased the risk of renal dysfunction and hypokalemia.
Abstract licence: CC BY
Kuriyama A, Polok K, Malhotra N, et al.
2026
Fluid overload is common in critically ill patients and is associated with worse outcomes. Diuretics are the mainstay of active fluid removal in patients with preserved renal function. The optimal diuretic strategy for fluid removal remains uncertain. We conducted a systematic review and Bayesian random-effects network meta-analysis of randomized controlled trials comparing two or more diuretic strategies for fluid removal in critically ill adults. We searched MEDLINE, Embase, and the Cochrane Central Register of Controlled Trials via Ovid, as well as trial registries, from inception to November 20, 2025. Two reviewers independently extracted data and assessed risk of bias using ROBUST-RCT. Certainty of evidence was evaluated using the GRADE approach for network meta-analysis. Treatment effects were summarized as odds ratios (ORs) or mean differences (MDs) with 95% credible intervals (CrIs). Twenty-six randomized controlled trials involving 1,652 participants were included. Evaluated interventions included bolus loop diuretics (19 studies), continuous loop infusion (15 studies), oral loop diuretics (5 studies), and loop diuretics combined with tolvaptan (8 studies), spironolactone (3 studies), thiazides (2 studies), acetazolamide (1 study), or triamterene (1 study). Compared with bolus loop diuretics, continuous loop infusion had an uncertain effect on mortality (OR 1.26; 95% CrI 0.62 to 2.55; very low certainty) and may increase ICU length of stay (MD 1.56 days; 95% CrI -0.02 to 3.16; low certainty). Tolvaptan monotherapy may reduce acute kidney injury compared with bolus or continuous loop diuretics (OR 0.12; 95% CrI 0.01 to 0.87; low certainty), although no studies evaluated its effect on the need for renal replacement therapy. For most other comparisons and outcomes, the certainty of evidence was low or very low. Available evidence comparing diuretic strategies for fluid removal during ICU-level care is limited, clinically heterogeneous, and derived largely from heart failure and post-cardiovascular surgery populations. Bolus loop diuretics were at least comparable to alternate diuretic strategies for patient important outcomes in critically ill adults, but this was based mostly on low or very low certainty evidence. Tolvaptan monotherapy may decrease acute kidney injury, but its effect on subsequent need for RRT and mortality remains uncertain.
Abstract licence: CC BY-NC-ND
Xiandu Luo, Qi Jin, Yan-qing Wu
Pharmacology Research & Perspectives, 2020
Avichal Dani, Kinjal Shah, Tanvi Sahni, et al.
2023
BackgroundHeart failure is a life-threatening disease affecting millions worldwide. Tolvaptan is the first FDA-approved orally active nonpeptide vasopressin 2 receptor antagonist to be used in hypervolemic hyponatremia, heart failure, cirrhosis, etc. In clinical trials, tolvaptan impacts short-term in increasing water excretion, and restoring Na+ and dyspnoea. Aims & ObjectivesThe objective is to analyze the outcomes of tolvaptan in existing cases of heart failure. MethodologyWe conducted a database search of the MEDLINE, Embase, and Cochrane Central Register of Controlled Trials and RCTs till 1st September 2019 were included following PRISMA guidelines after being matched with inclusion and exclusion criteria. 21 RCTs were included with 7,357 patients receiving tolvaptan and 7,273 patients being the control group. We used the MESH strings such as 'tolvaptan', 'vasopressin V2 receptor blocker', 'acute heart failure', and 'acute decompensated heart failure'. ResultsMeta-analysis showed that Tolvaptan was associated with a significant reduction in edema (RR = 1.05, 95% CI = 1.019-1.081, p=0.001) and significant body weight reduction (Control-SMD = -0.489, 95% CI =-0.637 to -0.342, p<0.001)&(Placebo-SMD = -0.425, 95% CI = -0.425 to -0.382, p<0.001) It shows significant decrease in serum sodium levels (SMD = 0.678, 95% CI = 0.609 to 0.748, p<0.001). There was no significant decrease in all-cause mortality (Control-RR = 0.855, 95% CI 0.470 to 1.555, p=0.607)(Placebo-RR= 0.972, 95% CI = 0.879-1.074, p=0.575). Results for Worsening renal function in heart failure (Placebo-RR = 0.798 95% CI 0.619 to 1.028, p=0.081)(Control-RR = 1.349, 95% CI=0.927-1.964, p=0.118). ConclusionAlthough tolvaptan may significantly reduce edema, congestive symptoms and decreased body weight, it has no impact on all-cause mortality and worsening renal function in heart failure.
Abstract licence: CC BY 4.0
Lima IG, Nunes JT, Luk AC, et al.
2026
BackgroundDiuretic resistance complicates decongestion in heart failure (HF). Multiple add-on strategies are used, yet comparative efficacy and safety remain uncertain.ObjectivesThe objective of the study was to compare pharmacologic strategies for diuretic resistance in HF using a random-effects network meta-analysis of randomized controlled trials (RCTs).MethodsWe searched PubMed/Embase (January 2000-June 2024) for adult HF RCTs with diuretic resistance. Primary outcomes were 72-h urine output and standardized 72-h weight; secondary outcomes were heart-failure hospitalization and cardiovascular mortality; safety was acute kidney injury (AKI). A random-effects network meta-analysis pooled mean differences (MDs) for urine, standardized MDs (SMDs) for weight, and ORs for binary outcomes. Mortality was also assessed by follow-up-adjusted meta-regression of incidence rate ratios.ResultsNineteen RCTs (n = 9,685) were included. Compared with low-dose loop diuretics, 72-hour urine output increased with tolvaptan (MD: 1,840 mL; 95% CI: 441-3,240) and low-dose loop plus tolvaptan (MD: 1,643 mL; 95% CI: 53-3,234). For 72-hour weight change, hydrochlorothiazide (SMD: 1.33; 95% CI: 0.49-2.18) and tolvaptan (SMD: 0.69; 95% CI: 0.09-1.29) produced the greatest standardized reductions. Dapagliflozin (OR: 0.15; 95% CI: 0.03-0.73) and empagliflozin (OR: 0.19; 95% CI: 0.04-0.94) reduced heart failure hospitalizations. Follow-up-adjusted mortality, expressed as incidence rate ratios, was neutral to favorable but imprecise and consistent in ≤60-day sensitivity analyses. High-dose loop diuretics (OR: 2.27; 95% CI: 1.20-4.30) and hydrochlorothiazide (OR: 4.14; 95% CI: 2.03-8.42) were associated with increased acute kidney injury.ConclusionsIn HF with diuretic resistance, sodium-glucose cotransporter 2 inhibitors may lower rehospitalization with a favorable renal profile, whereas nephron-segment add-ons enhance short-term decongestion but warrant AKI/electrolyte monitoring; rankings are exploratory, and choices should emphasize absolute effects and 95% CIs.
Abstract licence: CC BY-NC-ND
Sources: aggregated from Europe PMC (EMBL-EBI), OpenAlex, Crossref, PubMed and other open scholarly databases. Retracted articles are excluded. Study information is provided for research purposes and does not constitute medical advice.
Pharmacology and chemical data from DrugBank
Key facts
Drug status
Approved
Major interactions
None known
Half-life
12 hours
Mechanism
Tolvaptan is a selective and competitive arginine vasopressin receptor 2 antagonist.
Food interactions
4 warnings
Human targets
2 targets
Data: DrugBank · CC BY-NC 4.0
Pharmacokinetics at a glance
Absorption
2 - 4 hours
Cmax, Healthy subjects, 30 mg: 374 ng/mL;
Cmax, Healthy subjects, 90 mg: 418 ng/mL;
Cmax, heart failure…
Half-life
12 hours
Protein binding
99%
Volume of distribution
3L/kg
Metabolism
Elimination
1%
Clearance
4 mL/min/kg
Pharmacokinetic data: DrugBank · CC BY-NC 4.0
Known interactions with other medicines. Always consult a healthcare professional.
Showing 50 of 1366 interactions
How the body processes this drug — absorption, distribution, metabolism, and elimination
Cmax, Healthy subjects, 30 mg: 374 ng/mL;
Cmax, Healthy subjects, 90 mg: 418 ng/mL;
Cmax, heart failure patients, 30 mg: 460 ng/mL;
Cmax, heart failure patients, 90 mg: 723 ng/mL;
AUC(0-24 hours), 60 mg: 3.71 μg·h/mL;
AUC(∞), 60 mg: 4.55 μg·h/mL;
The pharmacokinetic properties of tolvaptan are stereospecific, with a steady-state ratio of the S-(-) to the R-(+) enantiomer of about 3. The absolute bioavailability of tolvaptan is unknown. At least 40% of the dose is absorbed as tolvaptan or metabolites.
Food does not impact the bioavailability of tolvaptan.
Proteins and enzymes this drug interacts with in the body
Enzymes involved in drug metabolism — important for understanding drug interactions
Proteins that transport this drug across cell membranes
PMID:2897240 PMID:35970996 PMID:8898203 PMID:9038218 PMID:35507548
Catalyzes the flop of phospholipids from the cytoplasmic to the exoplasmic leaflet of the apical membrane. Participates mainly to the flop of phosphatidylcholine, phosphatidylethanolamine, beta-D-glucosylceramides and sphingomyelins .
PMID:8898203
Energy-dependent efflux pump responsible for decreased drug accumulation in multidrug-resistant cells PMID:2897240 PMID:35970996 PMID:9038218
ATC C03XA01
Chemical identifiers
CAS, UNII, InChI Key and database cross-references
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Chemical identifiers
CAS, UNII, InChI Key and database cross-references
Linked compound data from DrugBank Open Data (CC BY-NC 4.0)
Tolvaptan
Additional database identifiers
Drugs Product Database (DPD)
20872
ChemSpider
391976
PDB
A1IT8
ZINC
ZINC000000538658
HUGO Gene Nomenclature Committee (HGNC)
HGNC:897
GenAtlas
AVPR2
GeneCards
AVPR2
GenBank Gene Database
U04357
GenBank Protein Database
28418
Guide to Pharmacology
368
UniProt Accession
V2R_HUMAN
HUGO Gene Nomenclature Committee (HGNC)
HGNC:895
GenAtlas
AVPR1A
GeneCards
AVPR1A
GenBank Gene Database
L25615
GenBank Protein Database
667068
Guide to Pharmacology
366
UniProt Accession
V1AR_HUMAN
HUGO Gene Nomenclature Committee (HGNC)
HGNC:2637
GenAtlas
CYP3A4
GeneCards
CYP3A4
GenBank Gene Database
M18907
Guide to Pharmacology
1337
UniProt Accession
CP3A4_HUMAN
HUGO Gene Nomenclature Committee (HGNC)
HGNC:40
GenAtlas
ABCB1
GeneCards
ABCB1
GenBank Gene Database
M14758
GenBank Protein Database
307180
Guide to Pharmacology
768
UniProt Accession
MDR1_HUMAN
DrugBank citations
If you use DrugBank data in your research, please cite:
- DrugBank 6.02024Recommended citationKnox C., Wilson M., Klinger C.M., et alDrugBank 6.0: the DrugBank Knowledgebase for 2024Nucleic Acids Res. 2024 Jan 552(D1):D1265-D1275
- DrugBank 5.02018Wishart D.S., Feunang Y.D., Guo A.C., et alDrugBank 5.0: a major update to the DrugBank database for 2018Nucleic Acids Res. 2017 Nov 846(D1):D1074-D1082
- DrugBank 4.02014Law V., Knox C., Djoumbou Y., et alDrugBank 4.0: shedding new light on drug metabolismNucleic Acids Res. 2014 Jan 142(1):D1091-7
- DrugBank 3.02011Knox C., Law V., Jewison T., et alDrugBank 3.0: a comprehensive resource for 'omics' research on drugsNucleic Acids Res. 2011 Jan39(Database issue):D1035-41
- DrugBank 2.02008Wishart D.S., Knox C., Guo A.C., et alDrugBank: a knowledgebase for drugs, drug actions and drug targets.Nucleic Acids Research2008 Jan36(Database issue):D901-6
- DrugBank 1.02006Wishart D.S., Knox C., Guo A.C., et alDrugBank: a comprehensive resource for in silico drug discovery and exploration.Nucleic Acids Research2006 Jan 134(Database issue):D668-72