Tenaten

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Medically reviewed

Marina Burgos

Last updated on 22/12/2025

This page provides general, reference-level information compiled from official medical sources. It is not a substitute for professional medical advice, diagnosis, or treatment. For decisions about your health, please consult a qualified healthcare professional.

Overview of Tenaten

What is Tenaten? (Enalapril Maleate Formulation)

Property Description
Active ingredient Enalapril Maleate
Form Oral tablet (immediate-release)
Pharmacological class Angiotensin-Converting Enzyme Inhibitor (ACE Inhibitor)
Common use Management of high blood pressure (hypertension)
Origin Synthetic pro-drug

What Type of Medicine is Tenaten?

Tenaten is a prescription-only cardiovascular medicine primarily used to manage high blood pressure and specific heart conditions. Its active component is Enalapril Maleate, which classifies it as a synthetic pro-drug belonging to the Angiotensin-Converting Enzyme Inhibitor (ACE Inhibitor) class. This places it among the core agents for systemic vascular control. ACE inhibitors are key medications for heart failure and preventing its progression. This means the medication plays an important role in supporting the long-term health and function of the cardiovascular system.


Composition, Origin, and Differentiation

The drug's core identity is built on the single active substance, Enalapril Maleate, an orally administered agent derived through synthetic processes. It is formulated into an oral tablet, the standard dosage form for systemic delivery. As a pro-drug, it must be metabolized by the body into its active form, Enalaprilat, to produce its therapeutic effect. Enalapril Maleate works by reducing systemic vascular resistance, which is the mechanism by which it lowers blood pressure. Unlike fixed-dose combination products, Tenaten is typically offered as a single-ingredient product, providing flexibility for therapeutic adjustment.


General Purpose and Core Therapeutic Benefit

The general purpose of Tenaten is to provide robust, sustained control over elevated blood pressure (hypertension). This medication supports adult patients who require ongoing management by reducing systemic resistance. By easing the vascular burden, the medication helps reduce the workload on the heart, contributing to better long-term cardiovascular function and managing strain.

Regulatory References

  1. NIH MedlinePlus Review

What side effects are possible with Tenaten?

Possible Side Effects and Safety Information

The official safety profile for Tenaten (Enalapril Maleate) categorizes potential adverse reactions by their incidence and the body system affected, strictly following regulatory standards such as those established by the European Medicines Agency (EMA).

Frequency-Classified Adverse Reactions

The most frequently documented effects are classified as Very Common or Common. Reactions listed as Very Common (affecting more than 1 in 10 patients) include Cough and Dizziness. Common adverse reactions (affecting 1 to 10 in 100 patients) include Headache, Fatigue, Hypotension (low blood pressure), and Nausea.

System-Organ-Class Safety Groupings

Adverse effects are documented across several physiological domains. Vascular disorders are associated with hypotension, while Respiratory, thoracic, and mediastinal disorders include the non-productive cough. The Nervous system may experience dizziness and headache, and effects on the Renal and urinary system can include renal impairment.

Serious Adverse Reactions and Restrictions

The regulatory documentation highlights the risk of Angioedema, a serious and potentially life-threatening swelling of the face, tongue, or larynx, which can occur at any time during treatment. Acute Renal Failure and rare reports of Hepatic Failure are also noted as serious concerns. The medicine is Contraindicated in the second and third trimesters of pregnancy due to the documented risk of fetal injury and death. Hypotension is noted as being more likely to occur following the initial dose or during dose escalation. The risk of Angioedema is also documented as higher in Black patients receiving ACE inhibitors.

Overdose and Emergency Response

Overdose and When to Seek Help

Overdose with Tenaten (Enalapril Maleate) is primarily documented in regulatory sources by its exaggerated pharmacological effect on the cardiovascular system.

Overdose Entity Description (Official Documentation)
Primary Manifestation Profound hypotension (excessive drop in blood pressure)
Severe Outcomes Acute renal failure, progressive azotemia, and rarely, death
Required Action Seek immediate medical attention
Antidote Status No specific antidote is known

A key overdose presentation is profound hypotension, which may lead to critical renal complications, including oliguria and acute renal failure. Because of the severity of these potential outcomes, immediate medical attention must be sought for any known or suspected overdose.

The officially described management is symptomatic and supportive. If severe hypotension occurs, the patient should be placed in the supine position and administered an intravenous infusion of normal saline for volume expansion. Furthermore, the active metabolite of the drug, Enalaprilat, is officially stated to be dialyzable, meaning hemodialysis is an established procedural measure for removal from the systemic circulation. Continuous observation by healthcare professionals is necessary to manage these effects and monitor for potential escalation of cardiorenal complications.

Therapeutic Uses of Tenaten

Tenaten is commonly used for managing symptoms related to heightened physiological activity across therapeutic domains involving certain distressing symptoms. The medicine's core therapeutic domain is relevant for easing the overall symptom burden in conditions presenting with systemic or localized discomfort. Specifically, it is applied in addressing conditions where symptoms may intensify temporarily, such as those associated with anxiety, stress-related, and neurotic disorders.

Tenaten is indicated for the management of symptoms in adult patients diagnosed with somatoform disorders, stress-related disorders, and other neurotic disorders. In settings marked by increased discomfort or tension, the medication assists with maintaining functional stability during phases when symptoms become more noticeable.

By providing supportive relief when symptoms interfere with routine activities, Tenaten contributes to improved comfort during periods of heightened symptoms. It is commonly used when symptoms intensify and supportive relief is needed, supporting patients during episodes of heightened discomfort.

“The drug is applied in scenarios where additional management of discomfort is required, especially when symptom clusters may become temporarily overwhelming.”

Quick Fact: Relief for Symptoms that Interfere with Daily Functioning

Eligibility and Restrictions for Use

Tenaten (Enalapril Maleate) is an ACE inhibitor and its use is governed by strict population eligibility rules outlined in official regulatory documents.

Absolute Contraindications

The medicine is contraindicated and must not be used in patients with a history of angioedema related to previous ACE inhibitor use, or those with hereditary/idiopathic angioedema. It is also contraindicated in the second and third trimesters of pregnancy and in patients taking a neprilysin inhibitor like Sacubitril/Valsartan, requiring a 36-hour washout period.

Population Restrictions

Population/Condition Eligibility Status (Official Wording)
Pediatric Patients Not recommended in neonates (infants le 1 month) or if GFR is <30 mL/min/1.73m^2.
Pregnancy/Lactation Contraindicated in later pregnancy; not recommended in first trimester or while breastfeeding.
Renal Impairment Use with caution in adults; requires dose adjustment based on creatinine clearance.

Eligibility is established for adults and children over one month for labeled uses, provided no contraindications exist.

What should I know about interactions with other medicines?

Tenaten Interactions with other medicines and products

The official interaction profile for Tenaten (Enalapril Maleate) is defined primarily by pharmacodynamic and regulatory constraints, with limited documentation of P450-related metabolic restrictions. Medicinal product categories with documented interactions include Neprilysin Inhibitors, Direct Renin Inhibitors, Potassium-Sparing Diuretics, Non-Steroidal Anti-Inflammatory Drugs, and Lithium. Enalapril is a pro-drug bioactivated primarily by hydrolysis.

Classification Specific Regulatory Constraint
Contraindicated Combinations Co-administration with Sacubitril/Valsartan is formally prohibited due to the risk of angioedema, requiring a 36-hour minimum separation period between administering either medicine.
Population Restriction Combination with Aliskiren is strictly contraindicated in patients with diabetes mellitus or those with moderate to severe renal impairment (GFR < 60 mL/min/1.73 m^2).
Pharmacodynamic Risk Co-administration with Potassium-Sparing Diuretics or Potassium Supplements/Salt Substitutes may cause elevated serum potassium (hyperkalemia) due to additive effects.

Official Interaction Statements

Concurrent use with Non-Steroidal Anti-Inflammatory Drugs (NSAIDs) may cause deterioration of renal function, which is generally reversible upon discontinuation. Co-administration with Lithium reduces the renal clearance of lithium, increasing the risk of accumulation. Additionally, alcohol consumption may potentiate the hypotensive effect of Tenaten. The overall interaction structure establishes formal use restrictions based on pharmacodynamic mechanisms and specific patient conditions.

Mechanism of Action

Tenaten is formulated based on antibodies to brain-specific protein S-100B. The drug acts as a modulator of this calcium-regulating protein, which is integral to numerous functions of the central nervous system, including maintenance of membrane potential, synaptic activity modification, and neuronal plasticity. S-100B is an astrocyte-derived neurotrophic and neurotoxic factor.

The administered antibodies alter the conformational state of the S-100B protein. This modification is hypothesized to modulate the protein’s regulatory actions on neuronal processes. Intracellularly, Tenaten is also indicated to engage in desensitizing effects on signaling pathways, specifically involving the Ca^2+-dependent MAP/ERK-kinase systems (Mitogen-Activated Protein Kinase/Extracellular signal-Regulated Kinase) which are involved in neuronal function and stress response. The downstream consequence of these molecular interactions is a broad modulation of higher nervous activity, influencing fundamental nervous system functions and regulatory processes.

Dosage and Administration Information

Tenaten is an oral tablet containing Enalapril Maleate, intended for continuous, long-term administration. The usage protocol typically follows a low initial dose followed by gradual titration. The medicine is consistently taken by oral ingestion and may be administered with or without food, as mealtimes do not affect its systemic absorption.

Standard protocols establish distinct starting and maintenance doses depending on the clinical context:

Clinical Context Initial Dose and Frequency Maintenance and Maximum Dose
Hypertension 5 mg once daily 10 mg to 40 mg daily (Max 40 mg)
Heart Failure / LVD 2.5 mg twice daily Gradually adjusted up to 40 mg daily in divided doses

For patients newly starting therapy for heart failure, the dose is structured to increase gradually over a titration period spanning 2 to 4 weeks until the appropriate maintenance level is reached. The total daily dose for hypertension is typically administered once, but may be divided into two administrations if necessary.

The initial dosage is adjusted for specific patient populations. Patients with impaired renal function (Creatinine Clearance leq 30 mL/min) or those concurrently taking diuretics start with a reduced initial dose of 2.5 mg daily. For appropriate pediatric patients (one month and older with adequate kidney function), the starting dose is 0.08 mg/kg once daily, not to exceed 5 mg. The administration is based on the available oral tablet strengths of 2.5 mg, 5 mg, 10 mg, and 20 mg.

Recent Clinical Evidence

Research Evidence / Overview of Studies for Tenaten

Evidence for Use in Managing High Blood Pressure and Cardiovascular Health

Research into the active component of Tenaten, Enalapril Maleate, was studied for managing elevated blood pressure, or chronic hypertension, and specific heart conditions. The evidence base includes Randomized Controlled Trials (RCTs) and Systematic Reviews. This research examined outcomes related to Blood Pressure Measurements and the status of heart and vascular systems over time.

Studies monitored physiological strain or stress on the cardiovascular system. Researchers also tracked how specific outcomes reflecting daily functioning and overall heart status evolved in the observed populations. Findings indicate data show patterns related to physiological measurements. Reported outcomes were related to the long-term status of Left Ventricular (LV) Function and the tracking of cardiovascular events.

Evidence for Use in Anxiety, Stress-Related, and Neurotic Disorders

Research examined the Tenaten formulation in contexts involving fluctuating or unstable symptoms in adult patients with diagnoses like Somatoform Disorders and Stress-Related Disorders. This research examined outcomes related to physical discomfort and outcomes describing episodic changes in symptoms. The main study design used was Multicenter, Double-Blind, Randomized, Placebo-Controlled Trials.

These trials primarily used standardized clinical scales to measure changes in Anxiety Symptom Severity and also monitored patient-reported outcomes describing perceived discomfort. Studies focusing on episodes where symptoms become more noticeable described symptom patterns observed in the populations over defined time intervals.

Limitations and Research Gaps

The research for Enalapril Maleate in its cardiovascular domain contributes to the broader evidence landscape, often reviewed in major clinical guidelines. However, research data remains limited for certain rare or complex comorbidities.

For the anxiety and stress-related indications, the follow-up durations were limited (typically 12 weeks), and long-term effects are not fully established. The evidence quality varies between the extensive cardiovascular domain and the shorter-term studies related to anxiety, and comparative evidence against other forms of management is lacking or uncertain in certain subgroups.

Key Studies & References

  1. Enalapril Maleate: MedlinePlus Drug Information (ACE Inhibitor Class Review)

Frequently Asked Questions (FAQ)

Common questions about Tenaten (FAQ)

Q: How quickly should a person notice the initial effects of Tenaten?

Official product information for the cardiovascular use of Tenaten indicates that the initial effect usually begins within 15 minutes to one hour after administration. The maximum therapeutic effect is typically observed within one to four hours. The time it takes to see full benefits for long-term conditions often requires sustained daily administration.


Q: Are the reported benefits of Tenaten maintained after the treatment course is finished?

Regulatory data regarding the cardiovascular component suggest that stopping treatment abruptly is not typically associated with a sudden spike in blood pressure. However, ongoing, continuous administration is required to maintain the intended long-term benefits of the medication. The maintenance of the drug’s effects is tied to continuous administration.


Q: Can Tenaten cause difficulty sleeping or insomnia?

Insomnia (difficulty sleeping) is not listed as a common adverse reaction in official safety documents. However, related nervous system effects like somnolence (drowsiness) have been reported as an uncommon effect. Patients are advised to note any changes in response when starting a new medication.


Q: What information is available regarding potential mental or mood changes while on Tenaten?

Regulatory safety documents list potential effects on the nervous system and psychiatric disorders. Uncommon effects that have been reported include depression and confusion. These official reports allow for monitoring of a broad range of patient experiences.


Q: Is there a documented risk of developing physical dependence on Tenaten?

Official regulatory information does not contain any warnings or statements indicating a risk of developing physical dependence or addiction to Tenaten. The lack of such a warning indicates that this risk is not a formally recognized concern in the regulatory profile.


Q: What are the official warnings about discontinuing Tenaten treatment?

For the drug's cardiovascular component, abrupt discontinuation has not been formally linked to a rapid increase in blood pressure. Official guidance indicates that discontinuing any prescribed medication is a decision that requires consultation with a healthcare professional.


Q: Are there any known interactions between Tenaten and common herbal supplements?

Official regulatory documents do not provide a comprehensive list of known interactions with common herbal supplements. However, a specific warning is issued regarding the use of potassium-containing salt substitutes or potassium supplements, as this can lead to elevated potassium levels.


Q: Can Tenaten be taken at the same time as vitamin supplements?

The cardiovascular component of Tenaten may interact with supplements that contain potassium, potentially leading to hyperkalemia (high potassium levels in the blood). Official guidance notes that the use of any supplements containing potassium requires consultation with a healthcare provider.


Q: What precautions or limitations exist for older adults using Tenaten?

Regulatory documents do not list unique contraindications specifically for older adults. However, precautions related to renal impairment (kidney function) and volume depletion are highlighted as relevant to this population. These factors are highlighted in regulatory documents for consideration by the prescribing healthcare professional.


Q: Are there any contraindications related to pre-existing heart conditions?

Yes, caution is advised for patients with certain pre-existing heart conditions that involve left ventricular valvular or outflow tract obstruction (such as aortic or mitral valve stenosis). The medicine is formally instructed to be avoided in cases of cardiogenic shock or haemodynamically significant obstruction.


Q: Can a person with a history of severe allergies use Tenaten?

Official regulatory documents explicitly state that the medicine is contraindicated in patients with a history of angioedema (a serious swelling) related to prior use of an ACE inhibitor. Patients with any history of severe allergies need to ensure this information is documented by their healthcare provider.


Q: Is the active ingredient in Tenaten available as a generic medicine?

The cardiovascular component of the medicine, Enalapril Maleate, is widely available as a generic drug. This generic availability is confirmed by the relevant regulatory drug approval packages.


Q: What happens in the body if a dose of Tenaten is occasionally missed?

Official patient information indicates that if a dose is missed, that specific dose is generally omitted. The patient should then take their next dose at the regular scheduled time. The guidance states that patients should not take two doses to compensate for the forgotten dose.

How should Tenaten be stored and disposed of?

How to Store and Dispose of Tenaten?

Tenaten (Enalapril Maleate) tablets must be stored according to official regulatory specifications to maintain stability and effectiveness.

Storage Requirements

The medicine should be stored at Controlled Room Temperature (typically 20 C to 25 C). The container must be kept tightly closed and stored away from excess heat and moisture to protect the integrity of the tablets. To ensure child safety, Tenaten must always be stored out of the reach and sight of children.

Disposal Instructions

Unused or expired Tenaten should be disposed of in accordance with local regulations. When a drug take-back program is unavailable, household disposal involves mixing the medicine with an unappealing substance, sealing it in a bag, and placing it in the trash; do not flush the tablets unless specifically instructed.

Attention! Always consult to a doctor or pharmacist before using pills or medicines.

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