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Angiotrofin A.P.

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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.

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Overview of Angiotrofin A.P.

Property Description
Active ingredient Diltiazem hydrochloride
Form Extended-release tablet (A.P.)
Pharmacological class Nondihydropyridine Calcium Channel Blocker
General Purpose Antihypertensive and Antianginal agent
Origin Synthetic (Benzothiazepine derivative)

What Type of Medication is Angiotrofin A.P.?

Angiotrofin A.P. is a prescription-only pharmaceutical preparation containing the active ingredient Diltiazem hydrochloride. The substance is fundamentally classified as a nondihydropyridine calcium channel blocker, a class of agents clinically recognized for modulating the movement of calcium ions in heart and vascular cells. The Diltiazem molecule is a synthetic compound derived from the benzothiazepine chemical structure.

This specific distinction of being a nondihydropyridine agent means that Angiotrofin A.P. has a dual and balanced therapeutic effect on both the vascular smooth muscle and the electrical conduction system of the heart, contrasting with agents that primarily target blood vessel relaxation.

Angiotrofin A.P.: Composition and Delivery Form

Angiotrofin A.P. is a single-ingredient product presented as an extended-release tablet intended for oral administration. The designation A.P. (Acción Prolongada) is a distinctive feature, confirming the use of a sophisticated sustained-release delivery system.

This extended-release tablet formulation is specifically designed to provide a steady, controlled release of the Diltiazem hydrochloride over an extended duration, which is intended to maintain stable concentrations of the medication throughout the day. These controlled-release formulations are utilized for the sustained management of hypertension and angina.

General Purpose as an Antihypertensive and Antianginal Agent

The general purpose of Angiotrofin A.P. is to regulate the cardiovascular system by promoting vasodilation and controlling heart activity. The drug is primarily utilized as an antihypertensive agent for managing high blood pressure and as an antianginal agent for conditions such as chronic stable angina.

Regulatory References

  1. Diltiazem - StatPearls (NIH)
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What side effects are possible with Angiotrofin A.P.?

Angiotrofin A.P. (Diltiazem hydrochloride) has a documented safety profile derived from official regulatory labeling, categorizing possible adverse reactions by frequency and affected physiological systems.

Documented Adverse Reactions and Frequencies

Reactions classified as Common (may affect up to 1 in 10 people) generally involve effects such as headache, dizziness, flushing, peripheral oedema (swelling), constipation, and bradycardia (slowed heart rate).

Uncommon documented effects may include palpitations, hypotension (low blood pressure), nervousness, and elevations in liver enzymes. The profile also notes Rare effects such as dry mouth and urticaria.

Frequency Not Known severe adverse reactions, explicitly documented in regulatory summaries, include Stevens-Johnson Syndrome and Toxic Epidermal Necrolysis (severe skin disorders), Heart Failure, hepatitis, and severe cardiac rhythm disturbances like asystole and higher degrees of atrioventricular block.

Safety Considerations and Constraints

Official labeling defines specific safety constraints. The medication is contraindicated in individuals with pre-existing conditions such as Sick Sinus Syndrome or second/third-degree Atrioventricular Block, unless a pacemaker is present. Severe hypotension and severe hepatic impairment are also listed as constraints to its use.

Safety notes also indicate that certain effects, such as headache and flushing, are documented as being more common at the start of treatment or during dose changes. Caution is required when used in older patients and those with impaired renal or hepatic function.

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Overdose and Emergency Response

Overdose and when to seek help

The official regulatory documents define the overdose profile of Angiotrofin A.P. (Diltiazem hydrochloride) based on its severe effects on the cardiovascular system. Overdose is classified as a potentially life-threatening scenario.


Documented Overdose Presentations

Overdose manifestations documented in regulatory sources include profound bradycardia (abnormally slow heart rates), severe hypotension (low blood pressure), and high-degree Second- or Third-degree AV Block. These severe presentations can escalate to critical outcomes such as acute cardiac failure, asystole, and cardiogenic shock. Overdose management is complicated by the extended-release nature of this formulation.

When Immediate Medical Help is Required

Individuals must seek immediate medical attention or contact emergency services immediately when overdose is suspected. Regulatory guidance mandates that treatment occur in a healthcare setting with continuous ECG monitoring and frequent measurement of blood pressure due to the critical nature of the possible complications. Emergency equipment must be readily available.

Regulatory Management Context

No specific antidote is known for this medication. Therefore, management is strictly symptomatic and supportive, utilizing officially described interventions. These include the administration of atropine or isoproterenol for heart rate control, and the use of vasopressors or cardiac pacing for severe, refractory manifestations. Overdose carries amplified risks for patients with pre-existing conditions like Sick Sinus Syndrome or Wolff-Parkinson-White (WPW) syndrome.

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Therapeutic Uses of Angiotrofin A.P.

What Angiotrofin A.P. Treats: Main Uses and Benefits

Angiotrofin A.P. is a formulation of diltiazem hydrochloride, which is relevant in contexts involving the cardiovascular system. It is commonly used across conditions presenting with acute episodes. The medication is applied across domains where additional symptomatic support is needed, primarily to manage hypertension (high blood pressure) and to support the management of angina (chest pain). It may also assist with managing conditions involving episodic or fluctuating manifestations, such as certain types of irregular heart rhythms.


The use of this medication is often used during phases when symptoms become more noticeable, relevant when supportive symptom management is appropriate. The medication may provide supportive relief when symptoms interfere with routine activities. The medication is considered relevant for easing symptoms related to heightened physiological activity.

This class of medicine is commonly used to help with high blood pressure and to support the management of angina.

This symptomatic assistance contributes to improved comfort during periods of heightened symptoms and helps ease the overall symptom burden. It supports the patient during difficult episodes by easing distress.

Quick Fact: Relief for Physical Discomfort

Regulatory References

  1. NIH MedlinePlus overview of Diltiazem
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Eligibility and Restrictions for Use

Eligibility for Angiotrofin A.P. (Diltiazem)

Angiotrofin A.P. contains the active substance Diltiazem. Eligibility to use this medicine is determined by specific clinical and physiological states, as outlined in official regulatory documents for Diltiazem.


Populations for whom use is Contraindicated (Must Not Use)

The medicine is formally contraindicated for individuals with known hypersensitivity to Diltiazem or any of the product's excipients. Furthermore, use is prohibited in patients with certain severe pre-existing heart conditions, including:

  • Sick sinus syndrome (unless a functioning ventricular pacemaker is present).
  • Second- or third-degree atrioventricular (AV) block (unless a functioning ventricular pacemaker is present).
  • Severe hypotension.
  • Acute myocardial infarction complicated by pulmonary congestion (as defined by Killip class I or greater).

Age and Physiological State Restrictions

Classification Eligibility Status/Restriction
Pediatric Use Safety and effectiveness in children have not been established (use generally not recommended).
Pregnancy Formal eligibility is not established; use is generally not recommended unless the potential benefit outweighs the risk (official classification is status-dependent).
Lactation Diltiazem is excreted into human milk; use is generally not recommended.

Condition-Specific Considerations

Use requires special caution and careful dose consideration in patients with pre-existing hepatic impairment (liver dysfunction) or renal impairment (kidney dysfunction). These conditions may alter the drug's effect and require specific monitoring or dose reduction by a healthcare professional.

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What should I know about interactions with other medicines?

Interactions with other medicines and products

Angiotrofin A.P. (Diltiazem hydrochloride) has a documented interaction profile governed by its effects on drug metabolism and cardiac function, as stated in official regulatory documents.

Category Official Interaction Statements
Formal Contraindications Co-administration with Dantrolene (IV) and Ivabradine is formally contraindicated due to the risk of severe cardiac effects or excessive bradycardia [EMA/FDA Documentation].
Metabolic Interactions Diltiazem is a moderate inhibitor of the CYP3A4 enzyme and a P-glycoprotein (P-gp) inhibitor. This action increases the plasma concentration and systemic exposure (AUC/Cmax) of many co-administered substrates, including Midazolam, Triazolam, Cyclosporine, and certain statins (e.g., Simvastatin).
Exposure and Restriction Combination with Simvastatin requires a maximum dose restriction for the statin due to the increased exposure and associated risk of myopathy/rhabdomyolysis. Conversely, potent CYP3A4 inducers like Rifampin and the herbal product St. John's Wort may significantly reduce Diltiazem's plasma concentration, potentially limiting its intended effect.
Pharmacodynamic Effects Co-administration with agents that similarly affect cardiac rhythm or conduction, such as beta-blockers and digitalis glycosides, carries an additive risk of adverse effects on cardiac conduction (e.g., bradycardia).
Substance and Population Notes Simultaneous consumption of alcohol with the extended-release (A.P.) formulation should be avoided as it may alter the drug's release kinetics and increase systemic exposure. Patients with impaired renal or hepatic function are noted in labeling as being more susceptible to interaction-related plasma concentration increases.
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Mechanism of Action

How Angiotrofin A.P. Works

Angiotrofin A.P. (Diltiazem) is a non-dihydropyridine calcium channel blocker that modulates cardiovascular activity by targeting specific ion channels. This action influences three core physiological domains to regulate muscle activity and electrical signaling.


Key Mechanism: Blocking L-Type Calcium Channels

This core mechanism involves the drug binding to L-type voltage-gated calcium channels on the cell membranes of cardiac and vascular smooth muscle . This interaction prevents the essential influx of extracellular calcium ions required for muscle cell contraction, modifying the early molecular steps of the excitation-contraction coupling sequence.


Modulating Vascular Smooth Muscle Tone

By limiting calcium entry into arterial smooth muscle cells, Angiotrofin A.P. decreases their capacity for contraction. This leads to the relaxation and widening of blood vessels (vasodilation), which results in a decrease in systemic vascular resistance, thereby modulating activity within the peripheral circulatory pathways.


Influencing Cardiac Electrical Conduction

The drug engages mechanisms that influence the specialized atrioventricular (AV) node in the heart's electrical system, where calcium channels are crucial for signal propagation. By slowing conduction velocity (a negative dromotropic effect), the drug results in a reduction of the heart rate and modulates the frequency of signal propagation within the cardiac conduction pathway.

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Dosage and Administration Information

Angiotrofin A.P. is formulated as an extended-release tablet for oral administration and is designed for once-daily use. The A.P. (Acción Prolongada) designation signifies the use of a controlled-release delivery system that allows the medication to be released slowly and continuously over 24 hours. To preserve this function, the tablet must be swallowed whole and must not be chewed, crushed, or divided. Taking the medication in any other way compromises the intended delivery system. Angiotrofin A.P. can be taken at any convenient time of the day, with or without food.

The dosage regimen is highly specific, beginning with a standard initial dose typically ranging from 180 mg to 240 mg once daily for adults. For the management of high blood pressure, the dose may be increased up to a maximum of 540 mg once a day. When used for angina, the maximum labeled dose is typically 360 mg once daily. Any necessary adjustment to the daily dosage, known as titration, is not immediate; it must be performed gradually, with at least 7 to 14 days passing before a dose change is made, allowing the previous dose to reach a stable state.

Special rules apply to certain populations. For older adults and individuals with known renal or hepatic impairment, treatment should commence with a lower initial dose, such as 120 mg once daily. Increases for these groups must also follow a slow and careful schedule. This adherence to specific titration and administration rules is central to the standardized usage protocol.

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Recent Clinical Evidence

The research foundation for Angiotrofin A.P. (Diltiazem Extended-Release) describes the types of clinical studies conducted across its main areas of use. This overview summarizes what has been studied and where the research currently stands.

Evidence for Use in Managing High Blood Pressure (Essential Hypertension)

Research has explored the use of this medication in managing high blood pressure through Randomized Controlled Trials (RCTs) and large-scale systematic reviews. The studies monitored measurements of systolic and diastolic blood pressure (BP) changes and assessed major endpoints such as the recorded rate of cardiovascular events and all-cause mortality in adults with essential hypertension. While large-scale observations related to chronic use are available, data for certain high-dose comparisons remain limited, and findings have been mixed when comparing outcomes to certain other agents.

Evidence for Use in Managing Chronic Stable Angina Pectoris

For chronic stable angina, research examined the medication using placebo-controlled cross-over studies and RCTs. These studies monitored outcomes related to physical discomfort and daily functioning, including the recorded duration of exercise tolerance and the frequency of chest pain episodes. Studies monitored repeated measurements of functional outcomes, but follow-up durations were limited in many of the trials, offering restricted insight into long-term changes.

Evidence for Use in Rate Control for Atrial Arrhythmias

Angiotrofin A.P. was studied for its use in physiological changes for conditions associated with acute or disruptive episodes, such as atrial fibrillation. Research examined this use in acute-care settings, monitoring outcomes like the achievement of a defined target heart rate. However, sample sizes were modest in some of the research trials, and research comparing the extended-release formulation versus the immediate-release formulation for extended observation is limited.

Understanding Research Gaps and Uncertainty

Most evidence is derived from general adult populations, with some studies monitoring cohorts of older adults. Dedicated research for pediatric populations is limited. Overall, extended-duration measurements are not fully established for the maintenance of outcomes related to all indications, and research is ongoing to address these gaps.

Key Studies & References

  1. Label: DILTIAZEM HYDROCHLORIDE - diltiazem hydrochloride extended-release tablets - DailyMed (NIH)
  2. 2023 ACC/AHA/ACCP/HRS Guideline for the Diagnosis and Management of Atrial Fibrillation
  3. Diltiazem: MedlinePlus Drug Information (NIH)
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Frequently Asked Questions (FAQ)

Common questions about Angiotrofin A.P. (FAQ)


Q: What specific medical conditions is Angiotrofin A.P. typically prescribed for?

A: Official product information states that Angiotrofin A.P. (Diltiazem extended-release) is indicated for the management of high blood pressure (hypertension). It is also used to manage chronic stable angina pectoris, which is a type of chest pain.


Q: What is the main ingredient in Angiotrofin A.P. and what does it do?

A: The active ingredient is Diltiazem hydrochloride, which is classified as a calcium channel blocker. The intended action is to relax blood vessels and help reduce the heart's workload by modulating the movement of calcium ions.


Q: How quickly should a person expect to feel the effects of Angiotrofin A.P.?

A: Because this is an extended-release formulation, the medication is absorbed continuously. A stable therapeutic effect in lowering blood pressure is generally achieved gradually. Clinical guidelines indicate that the full antihypertensive effect is often observed after approximately 14 days, which is the basis for gradual dose adjustment.


Q: Is it normal to feel a bit dizzy or lightheaded when first starting Angiotrofin A.P.?

A: Dizziness is listed as a common side effect in clinical studies. Since the medication works to lower blood pressure, this can sometimes lead to lightheadedness. Adverse event data shows that this effect may occur, particularly when initiating treatment or after a change in dosage.


Q: Can Angiotrofin A.P. be taken long-term for chronic conditions?

A: The medication is indicated for chronic conditions like high blood pressure and chronic stable angina. Regulatory labeling indicates that monitoring of certain parameters, such as liver and kidney function, is required at regular intervals for prolonged use.


Q: What are the most common mild side effects people experience with Angiotrofin A.P.?

A: Based on clinical trials, the most frequently reported mild side effects include headache, constipation, dizziness, and peripheral edema (which is swelling, typically in the ankles or feet). These effects are commonly reported in clinical trials.


Q: Are there any signs of a serious side effect from Angiotrofin A.P. that people should watch out for?

A: Regulatory information reports rare but serious adverse reactions. These include severe skin disorders such as Stevens-Johnson syndrome, as well as conditions like heart failure or severe disturbances in cardiac conduction. Such serious changes may require immediate medical evaluation.


Q: Can Angiotrofin A.P. cause stomach upset or digestive issues?

A: Yes, digestive issues are documented. Constipation is listed as a common adverse event. Less frequently reported effects include nausea, vomiting, and diarrhea.


Q: Does Angiotrofin A.P. interact with common pain relievers like ibuprofen or naproxen?

A: Official drug interaction information notes that Non-Steroidal Anti-Inflammatory Drugs (NSAIDs), which include ibuprofen, may reduce the antihypertensive effectiveness of Diltiazem. Regulatory information suggests the need for careful consideration of concurrent use.


Q: Are there any foods or supplements that should be avoided while on Angiotrofin A.P.?

A: Regulatory warnings indicate that alcohol consumption should be avoided as it may disrupt the controlled-release function of the A.P. tablet. The herbal product St. John's Wort is also noted to potentially reduce the amount of Diltiazem in the body.


Q: Does Angiotrofin A.P. have any known interactions with herbal supplements?

A: Regulatory labeling specifically notes that the potent enzyme inducer St. John's Wort may significantly reduce the plasma concentration of Diltiazem. This reduction could limit the drug's intended therapeutic effect.


Q: Can Angiotrofin A.P. make a person feel more tired or sleepy?

A: While not one of the most common effects, somnolence (drowsiness) is listed as an infrequent adverse event in product labeling. Asthenia, or unusual weakness, has also been reported.


Q: What is the difference between Angiotrofin and Angiotrofin A.P.?

A: The 'A.P.' stands for Acción Prolongada, which signifies it is the extended-release version of the drug. This formulation is designed to release the medication slowly over 24 hours, allowing for once-daily dosing, unlike other immediate-release forms.


Q: Is it possible for Angiotrofin A.P. to cause a skin rash or allergic reaction?

A: Yes, skin reactions are documented. Rash and urticaria (hives) have been reported as adverse effects. There are also reports of very rare, severe skin disorders like Stevens-Johnson Syndrome.


Q: How long does Angiotrofin A.P. stay in a person's system after stopping it?

A: According to pharmacokinetic data, the apparent elimination half-life of the drug typically ranges from approximately 5 to 10 hours after multiple once-daily doses. This indicates the approximate time required for the drug's concentration in the body to be reduced by half.


Q: Is it safe to drive or operate machinery while taking Angiotrofin A.P. ?

A: Caution is advised regarding driving or operating heavy machinery until the individual knows how the medication affects them. This is due to the potential risk of side effects like dizziness or drowsiness mentioned in the patient information.


Q: Does Angiotrofin A.P. require routine blood tests for monitoring?

A: Regulatory labeling indicates that regular monitoring of certain laboratory parameters, particularly renal (kidney) and hepatic (liver) function, is required for patients on long-term treatment with the medication.


Q: Is Angiotrofin A.P. a high-risk medication in certain patient populations?

A: Its use is formally contraindicated (prohibited) for people with specific severe, pre-existing heart conditions. This includes patients with certain degrees of heart block or Sick Sinus Syndrome (unless a pacemaker is present), and those with very low blood pressure (severe hypotension).


Q: How does the mechanism of action of Angiotrofin A.P. prevent the condition it treats?

A: By acting as a calcium channel blocker, the drug limits the contraction of heart and vascular cells. This leads to the widening of blood vessels (vasodilation) to reduce blood pressure and also reduces the heart's workload to help manage angina.


Q: Is it normal for Angiotrofin A.P. to cause ringing in the ears?

A: Yes, tinnitus (ringing in the ears) is listed in adverse event data. It is reported as an infrequent event, meaning it occurs in a small percentage of patients.


Q: Can Angiotrofin A.P. be taken on an empty stomach?

A: Official product information for Diltiazem extended-release often states that the tablet can be taken with or without food. However, final administration guidelines depend on the specific formulation being used.


Q: Is there a generic version of Angiotrofin A.P. available?

A: Yes. The active ingredient, Diltiazem hydrochloride extended-release, has multiple generic equivalents that have been approved by regulatory bodies and are available in various strengths.


Q: Why might a doctor prescribe a lower dose of Angiotrofin A.P. for some patients?

A: A lower initial dose is recommended in the product information for older adults and individuals with known liver or kidney impairment. This is due to the potential for these groups to have increased sensitivity or altered clearance of the drug.

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How should Angiotrofin A.P. be stored and disposed of?

Storage Requirements

Angiotrofin A.P. (Diltiazem extended-release) must be stored at Controlled Room Temperature, defined as 25 C (77 F), with permitted temperature excursions between 15 C and 30 C. Official labeling requires the medication to be protected from excessive humidity and dispensed in a light-resistant, tight container.

Child Safety and Handling

It is an official regulatory requirement that the medication be kept out of the sight and reach of children and that the dispensing container must use a child-resistant closure. If the extended-release product is prepared for administration by opening the capsule, the contents must be swallowed immediately and not stored for future use.

Disposal Instructions

Unused or expired Angiotrofin A.P. should not be disposed of in household trash or poured down a sink or toilet (wastewater). Patients are instructed to utilize official drug take-back programs or consult with a pharmacist or local sanitation department for proper disposal guidance.

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

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