Androz

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Medically reviewed

Marina Burgos

Last updated on 10/01/2026

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 Androz

Property Description
Active ingredient Sildenafil (as the Citrate salt)
Form Film-coated tablet
Pharmacological class Phosphodiesterase type 5 (PDE5) inhibitor
General Purpose Addresses male sexual function problems
Origin Synthetic compound

What is Androz and What Type of Medicine Is It?

Androz is a prescription-only pharmaceutical preparation containing the active ingredient Sildenafil, which is classified as a Phosphodiesterase type 5 (PDE5) inhibitor. This drug type is used to address underlying physical issues related to localized blood flow.

As a highly specific drug, Androz represents a major pharmacological group—the PDE5 inhibitors—which selectively target the PDE5 enzyme found in specific smooth muscles of the body. The active substance, Sildenafil Citrate, is clinically recognized for its reliable action in enhancing the body’s own vasodilatory signals. This classification indicates that the medicine operates by amplifying a specific, natural chemical pathway in the body.

Composition, Form, and General Purpose

The medication is a synthetic single product formulated as a film-coated tablet intended for oral administration. The tablet structure contains the active component, Sildenafil, along with necessary excipients to form the physical dose. Sildenafil is chemically classified as a Benzenesulfonamide Derivative.

Androz is differentiated by its single, focused Sildenafil ingredient, meaning its effects are limited exclusively to the action of the PDE5 inhibitor. The purpose of this composition and form is to enable the drug to be absorbed systematically to enhance blood flow to targeted tissues. This is achieved through the Mechanism of effect, where Sildenafil helps relax blood vessel walls, aiding the body in achieving necessary circulation. Consequently, Androz is primarily intended to address Erectile Dysfunction (ED), supporting the natural processes required for male sexual function, and is also used for managing Pulmonary Arterial Hypertension (PAH), underscoring its action as a specialized vasodilator.

What side effects are possible with Androz?

Possible Side Effects and Safety Information

Androz, containing the active ingredient Sildenafil, has an officially documented safety profile categorized by the frequency and physiological system of adverse reactions, according to regulatory documents such as the EMA SmPC and FDA Prescribing Information. This profile provides a structured view of the medicine’s risk characteristics.


Frequency-Classified Adverse Reactions

The following effects are classified based on their documented frequency in clinical use:

  • Very Common (Affects 1 in 10 users): Headache.
  • Common (Affects < 1 in 10 users): Flushing (facial reddening), Dizziness, Dyspepsia (indigestion), Nasal congestion, and Visual disturbances (e.g., color tinge to vision).
  • Rare (Affects < 1 in 1,000 users): Non-arteritic anterior ischemic optic neuropathy (NAION), Priapism (prolonged erection), and Sudden decrease or loss of hearing.

Safety Restrictions and Serious Risks

The official label documents specific safety constraints. A strict contraindication applies to the concomitant use of Androz with any form of organic nitrates or nitric oxide donors due to the risk of severe hypotension. Safety-related restrictions also exist for patients with certain pre-existing cardiovascular conditions (e.g., recent stroke or myocardial infarction) and known hereditary degenerative retinal disorders.

In addition to the frequency-classified effects, serious adverse reactions explicitly noted in regulatory sources include NAION, priapism, and severe cardiovascular events. Furthermore, regulatory documents note that higher drug exposure may occur in older adults and those with severe renal or hepatic impairment.

Overdose and Emergency Response

The official regulatory profile for Androz (Sildenafil) overdosage indicates that clinical manifestations primarily reflect an increased incidence and severity of adverse effects already known at standard doses. Documented presentations of overexposure include an escalation in common symptoms such as headache, flushing, and dyspepsia. Due to the drug’s vasodilatory properties, high exposure may also lead to systemic effects, including significant hypotension (low blood pressure) and syncope (fainting).

Regulatory labeling emphasizes that specific, severe clinical signs mandate immediate medical attention. Patients must seek emergency medical help if an erection is painful or persists longer than four hours, as this condition, known as priapism, can lead to permanent penile tissue damage and loss of potency if left untreated. Urgent attention is also required for emergent, severe symptoms affecting sensory function, including sudden loss of vision or a sudden decrease or loss of hearing.

Regarding medical management, no specific pharmacological antidote is known for Sildenafil overdose. Therefore, official regulatory guidance states that treatment is strictly symptomatic and supportive. Due to the high protein-binding nature of the active ingredient, procedural measures such as renal dialysis are not expected to accelerate the clearance of the substance from the body, reinforcing the reliance on clinical support.

Therapeutic Uses of Androz

What Androz Treats: Main Uses and Benefits

Androz, containing Sildenafil, is commonly used to help address two distinct categories of conditions. Its primary therapeutic domains include supporting male sexual function by managing the physical symptoms of Erectile Dysfunction (ED), and, separately, managing Pulmonary Arterial Hypertension (PAH), which is marked by elevated pressure in the lung arteries.

Androz is generally applied in contexts involving episodic or fluctuating manifestations related to erection difficulty, and is also used for the long-term management of systemic imbalance in PAH patients. The medication helps with symptomatic relief, which contributes to improved comfort and stability during symptomatic periods.

“This medication is commonly used to help address symptom clusters that may become intense or disruptive, providing supportive relief when symptoms interfere with routine activities.”


Quick Fact: Relief for Erection Difficulty
Androz supports symptomatic relief for the functional issues related to sexual activity, assisting with maintaining functional stability during episodes of difficulty.

Regulatory References

  1. NIH MedlinePlus overview

Eligibility and Restrictions for Use

Eligibility for Androz (Sildenafil) Use

Official regulatory documents define strict criteria for who can and cannot use this medicine, based on absolute prohibitions, age, organ function, and existing health conditions.

Classification Population Rule Status
Contraindicated Patients taking organic nitrates (in any form) or riociguat. Prohibited
Contraindicated Patients with a history of vision loss due to Non-Arteritic Anterior Ischaemic Optic Neuropathy (NAION). Prohibited
Contraindicated Men for whom sexual activity is inadvisable due to severe cardiovascular risk. Prohibited
Contraindicated Patients with severe hepatic impairment or known hypersensitivity to sildenafil. Prohibited
Age Restriction Adolescents (under 18) for Erectile Dysfunction (ED). Not Indicated
Age Restriction Infants (under 1 year) for Pulmonary Arterial Hypertension (PAH). Safety Not Established
Organ Function Elderly patients and those with severe renal or hepatic impairment (mild/moderate) may require a cautious starting dose. Restricted/Conditional Use
Comorbidity Conditions predisposing to priapism (e.g., sickle cell anemia, leukemia) or anatomical deformation of the penis require caution. Restricted Use
Reproductive Status Safety is not established for use during pregnancy; insufficient data exists to determine risk during lactation. Use Not Established

These eligibility rules reflect the standardized regulatory classification used in official government documentation.

What should I know about interactions with other medicines?

Interactions with other medicines and products

This section outlines the formally documented drug–drug and drug–substance interaction patterns for Androz (Sildenafil) as defined by government regulatory authorities.

Co-administration is strictly contraindicated with all forms of organic nitrates and nitric oxide donors due to the potential for a severe, pharmacodynamic-induced hypotensive effect. The same prohibition applies to the guanylate cyclase stimulator Riociguat.

Pharmacokinetic Interactions

Sildenafil is primarily metabolized through the cytochrome P450 (CYP) enzyme CYP3A4. Co-administration with strong CYP3A4 inhibitors reduces Sildenafil clearance, leading to a significant increase in systemic exposure (AUC and Cmax).

Interacting Substance/Category Officially Documented Effect Regulatory Constraint
Potent CYP3A4 Inhibitors (e.g., Ritonavir) Substantially increased Sildenafil plasma levels Maximum dose restriction, timing separation required
Alpha-blockers (e.g., Doxazosin) Additive blood pressure lowering effects Patient must be hemodynamically stable before initiation

For example, the strong inhibitor Ritonavir increases Sildenafil exposure by over tenfold, resulting in a mandatory regulatory restriction on the maximum dose (25 mg) within a 48-hour period. Furthermore, a high-fat meal is documented to reduce the maximum plasma concentration and delay the rate of absorption. Regulatory labeling also notes a population-specific interaction where co-administration with a Vitamin K antagonist is associated with a higher incidence of epistaxis in Pulmonary Arterial Hypertension (PAH) patients.

Mechanism of Action

How Androz Works: Mechanism of Action

Androz exerts its pharmacologic effect by functioning as a selective inhibitor of the Phosphodiesterase type 5 (PDE5) enzyme. This enzyme is localized primarily within the smooth muscle cells lining the blood vessels of specific vascular beds. The core mechanistic interaction involves blocking the active site of PDE5, which arrests the enzyme's ability to catalyze the breakdown of cyclic Guanosine Monophosphate (cGMP).

This inhibition leads to a rapid intracellular accumulation of cGMP, a critical second messenger. The sustained high concentration of cGMP triggers a molecular cascade that results in a decrease in intracellular calcium levels within the smooth muscle cells. This decrease causes the relaxation of vascular smooth muscle and subsequent vasodilation (widening of the blood vessel lumen).

Crucially, this mechanism is dependent on the prior physiological release of Nitric Oxide (NO) from endothelial and nerve cells, which is the initial stimulus for cGMP production. By enhancing the magnitude and duration of this localized, natural signaling process, the drug modulates regional hemodynamics, contributing to a substantial increase in localized blood flow.

Dosage and Administration Information

Official Administration Guidelines for Androz

The use of Androz (Sildenafil) involves distinct administration patterns based on the condition being addressed. The medication is primarily available in film-coated tablets for oral administration, although the active ingredient is also available as an intravenous (IV) solution for hospital use related to pulmonary hypertension.


Usage Context Official Dosing and Frequency
Erectile Dysfunction (ED) Starting Dose: 50 mg, taken as needed. Dose may be adjusted from 25 mg up to a maximum of 100 mg. The maximum recommended dosing frequency is strictly once per day.
Pulmonary Arterial Hypertension (PAH) Standard Dose: 20 mg. Recommended to be taken three times a day (TID). Doses should be administered approximately 4 to 6 hours apart.

Procedural and Population-Specific Instructions

Timing and Context: The oral tablet may be taken with or without food. However, taking the tablet with a high-fat meal may delay the onset of activity. For the ED indication, sexual stimulation is required for the drug to be effective.

Dose Adjustments: A lower starting dose of 25 mg for the ED indication is typically considered for older adults (aged 65 years and above), as well as patients presenting with severe renal impairment (creatinine clearance <30 mL/min) or hepatic impairment.

Missed Dose: For the continuous PAH regimen, if a dose is missed, it should be taken as soon as possible, but a double dose should not be taken to compensate.

Recent Clinical Evidence

Research Evidence / Overview of Studies for Androz

The scientific evidence base for Sildenafil (the active ingredient in Androz) was built from Randomized Controlled Trials (RCTs), systematic reviews, and meta-analyses. Research explored conditions marked by functional limitations related to male sexual function, and conditions associated with elevated pressure in the arteries of the lungs. The findings describe group patterns, not personal outcomes.


Evidence for Use in Erectile Dysfunction (ED)

Sildenafil was studied for conditions marked by functional limitations related to male sexual function, which are characterized by fluctuating or episodic manifestations. These research efforts primarily consisted of numerous short-term RCTs, often with treatment durations of approximately 12 weeks. Studies monitored patient-reported outcomes using validated questionnaires, such as the International Index of Erectile Function (IIEF) score, and tracked the frequency of successful sexual attempts.

Findings describe patterns observed in these studies where men in the study drug group met pre-specified functional criteria at a higher frequency compared to those receiving placebo.


Evidence for Use in Pulmonary Arterial Hypertension (PAH)

Sildenafil was evaluated in research exploring PAH, a condition marked by functional limitations related to blood flow in the lungs. Core efficacy was established in short- to mid-term RCTs, typically lasting 12 to 16 weeks. Studies monitored outcomes related to physiological strain using the standardized 6-Minute Walk Distance (6MWD) test, and tracked the time until clinical worsening (a composite measure that includes events like hospitalization).

Research highlights changes measured during the study period, where differences in exercise capacity were recorded in the study group compared to the placebo group. Findings also describe a pattern related to the time to clinical worsening in the study group.


Evidence Gaps and Areas of Scientific Uncertainty

The research landscape, while extensive for short-term observations, presents areas where data remain insufficient. The main limitations include the fact that follow-up durations were limited for core functional endpoints, meaning the long-term effects are not fully established. There is limited information for long-term outcomes and durability of response beyond the initial trial period. These limitations mean that the results apply only to the populations studied and do not determine whether an individual will respond similarly.

Frequently Asked Questions (FAQ)

Common questions about Androz (FAQ)

Q: How quickly should someone notice effects after starting Androz?

A: Regulatory documents indicate that the active ingredient in Androz generally reaches its maximum concentration in the blood within 30 to 120 minutes, with a median of 60 minutes, when taken on an empty stomach. Taking the tablet with a high-fat meal may slow down this process and delay the rate of absorption. This timeframe describes the expected availability of the drug in the body, but individual response may vary.


Q: How long does Androz stay in your system after stopping it?

A: The official pharmacokinetics information shows that the active ingredient, Sildenafil, and its main active component have a half-life of approximately four hours. This means the concentration of the drug is expected to decrease by half in the body approximately every four hours. The drug's concentration is expected to decrease significantly over a period corresponding to several half-lives.


Q: Is Androz safe for older adults (seniors)?

A: Official prescribing information notes that higher concentrations of the drug in the blood may occur in older adults, defined as those aged 65 years or above. Because of this difference in exposure, a lower starting amount may be considered for this population. Eligibility is considered based on specific individual health factors.


Q: Is it common to feel tired when you first start Androz?

A: Feeling tired or fatigued is not listed among the very common adverse reactions noted in official clinical trial data. However, difficulty sleeping (insomnia) is listed as a common side effect in some populations, particularly those using the medication for Pulmonary Arterial Hypertension. Questions about side effects should be directed to a healthcare provider.


Q: How is the research evidence for Androz described in official sources?

A: The evidence is based on clinical trials that observed group patterns of response, not personal outcomes. For Erectile Dysfunction, studies described patterns where men met pre-specified functional criteria at a higher frequency than those taking a placebo. For Pulmonary Arterial Hypertension, research highlighted measured improvements in exercise capacity and a delay in the rate of clinical worsening.


Q: Is Androz meant to be taken short-term or long-term?

A: The duration of use depends on the condition being addressed. For Erectile Dysfunction, it is taken only as needed, up to once per day. For Pulmonary Arterial Hypertension, it is taken continuously. The initial regulatory research was largely conducted over short periods, meaning the full extent of very long-term effects is described as not completely established.


Q: Can people with diabetes use Androz?

A: Official prescribing information does not list diabetes mellitus as a specific condition that is contraindicated or requires a mandatory dose adjustment based on the condition itself. Eligibility rules primarily focus on severe factors, such as cardiovascular fitness, severe organ problems, and the use of certain interacting medications.


Q: Does Androz affect blood pressure readings?

A: The active ingredient works by causing the widening of blood vessels (vasodilation), which leads to a mild and temporary decrease in systemic blood pressure in healthy individuals. The official label notes that this effect is generally most noticeable within one to two hours after taking the dose.


Q: What should I do if the side effects of Androz seem mild?

A: Official regulatory documents identify sudden vision changes or a prolonged erection (priapism) as serious events for which immediate medical attention is noted. The label does not typically provide general guidance for managing common, mild side effects, such as a headache or flushing.


Q: Can you take Androz if you have kidney problems?

A: Patients with severe kidney impairment may experience higher drug levels in the blood. Therefore, official guidelines state that healthcare providers may consider a lower starting dose in these patients to account for this effect. Eligibility is assessed based on the severity of the impairment.


Q: Is there a risk of withdrawal symptoms when stopping Androz?

A: The active ingredient is not classified as a controlled substance and is not associated with physical dependence or typical withdrawal symptoms upon sudden cessation. However, in patients using the medicine for Pulmonary Arterial Hypertension (PAH), abruptly stopping the continuous regimen has been reported to carry a risk of rapid clinical deterioration.


Q: Do you need a special diet while taking Androz?

A: The oral tablet can be taken with or without food. Official documents note that while no specific diet is mandated, consuming the tablet with a meal that is high in fat may reduce the rate at which the drug is absorbed, potentially delaying the onset of activity.


Q: Can Androz be used for other issues besides its main listed purpose?

A: The medication is officially approved and indicated by government regulatory bodies exclusively for the treatment of Erectile Dysfunction (ED) and Pulmonary Arterial Hypertension (PAH). Only the treatments for Erectile Dysfunction (ED) and Pulmonary Arterial Hypertension (PAH) are authorized indications on the official label.


Q: Is it okay to take Androz every day?

A: The maximum recommended frequency for the Erectile Dysfunction indication is strictly once per day, taken as needed. For the Pulmonary Arterial Hypertension indication, the regimen involves continuous dosing, typically three times a day.


Q: What happens if I miss a dose of Androz?

A: For the continuous Pulmonary Arterial Hypertension regimen, official instructions state that a missed dose should be taken as soon as it is remembered. However, patients are advised not to take a double dose to make up for the one that was missed.


Q: Does taking Androz affect fertility or having children?

A: Official documentation notes that less than 0.001% of the drug may appear in the semen. Regarding its effect on human fertility, the data is described as not fully established. The medication is not indicated for use in females and has limited data regarding its presence in human milk.


Q: Can Androz affect your mood or cause anxiety?

A: Mood changes or anxiety are not listed as common side effects in the official product information. However, difficulty sleeping (insomnia) is noted as a common side effect in some populations, which is an effect related to the central nervous system.


Q: Is there a generic version of Androz available?

A: The active ingredient in Androz is Sildenafil. This compound is widely available under multiple brand names, as well as in generic formulations, which are subject to regulatory approval for equivalence in different regions.


Q: Why does the packaging say Androz is a controlled substance?

A: The active ingredient, Sildenafil, is generally not classified as a controlled substance in major regulatory jurisdictions like the United States or the United Kingdom. It is regulated as a prescription-only medicine due to its specific effects and necessary medical oversight.


Q: Why is Androz sometimes described as a 'lifestyle drug'?

A: The official documents focus strictly on the medicine's clinical indications, which include Erectile Dysfunction. This condition relates to quality of life and function, which may lead to the casual use of the term 'lifestyle drug' in general discussions, but the term is not used in regulatory labeling.


Q: Does taking Androz affect sleep patterns?

A: Official adverse reaction data includes difficulty sleeping (insomnia) as a common side effect in patients using the medication for Pulmonary Arterial Hypertension.


Q: Is Androz the same as the active ingredient it contains?

A: Androz is a specific brand name formulation. It contains the active ingredient, Sildenafil, which is the chemical compound that produces the desired therapeutic effect. The active ingredient is also available under different brand names or as a generic.


Q: Can Androz cause changes in vision?

A: Visual disturbances, such as a temporary color tinge to vision, are documented as common side effects. Rare, but serious, vision-related effects involving a sudden decrease or loss of vision have also been reported and are specifically noted in the safety warnings.


Q: Why do some people stop taking Androz?

A: Reasons for cessation or contraindication, as documented in regulatory information, include the development of a serious adverse event, such as a prolonged erection, or the requirement to start using a contraindicated medication, like a nitrate.


Q: Are there specific tests needed before starting Androz?

A: Official documentation advises that healthcare providers should evaluate underlying conditions that could be adversely affected by the drug, such as cardiovascular disease. Additionally, the initial evaluation of Erectile Dysfunction often includes a determination of the potential underlying causes of the condition.


Q: Does Androz interact with birth control pills?

A: The official drug interaction list details critical interactions with drug classes like nitrates, CYP3A4 inhibitors, and alpha-blockers. Birth control pills are not specifically listed among the substances that are formally documented for a critical interaction or required dose restriction.


Q: What is the role of Androz in the treatment plan?

A: The medicine is a component of a treatment plan intended to enhance localized blood flow. For Erectile Dysfunction, its role is to support the body’s natural response to sexual stimulation. For Pulmonary Arterial Hypertension, its role is to help improve exercise ability and delay the rate of disease worsening.


Q: How is the effectiveness of Androz generally measured?

A: In clinical trials, effectiveness for Erectile Dysfunction was measured using validated patient questionnaires and tracking the frequency of successful attempts. For Pulmonary Arterial Hypertension, it was assessed using physiological tests, such as the 6-Minute Walk Distance.


Q: Does the brand of Androz matter?

A: Regulatory agencies approve and oversee both brand name products and generic versions of the active ingredient, Sildenafil. Generic versions must demonstrate that they are chemically and functionally equivalent (bioequivalent) to the original brand name drug.


Q: Is Androz available over the counter in some countries?

A: While the drug is generally a prescription-only medicine in the United States, in certain other regulatory jurisdictions, such as the United Kingdom, the active ingredient is available for purchase without a prescription following a required pharmacy consultation.


Q: How does Androz interact with common supplements like multivitamins?

A: The section of the official label that details drug interactions is focused on prescription medications and substances that strongly affect the way the drug is metabolized. General supplements like common multivitamins are not listed as formally documented interacting substances requiring a critical warning or dose restriction.


Q: Are there any specific organs that Androz affects significantly?

A: The primary effect is on the smooth muscle of blood vessels. However, official safety cautions and restrictions are formally stated for patients with pre-existing severe conditions affecting the cardiovascular system, kidneys (renal), or liver (hepatic), indicating the relevance of these organ systems to the drug’s safe use.


Q: Why is Androz sometimes given as an injection instead of a pill?

A: Official administration guidelines note that the active ingredient is formulated as an intravenous (IV) solution, which is intended specifically for use in a hospital setting for patients managing Pulmonary Arterial Hypertension.


Q: Do you need to adjust your caffeine intake while on Androz?

A: The official drug interaction list, which details substances that require monitoring or dose adjustment, does not include caffeine or provide formal warnings specifically related to caffeine intake.


Q: Is the long-term safety data for Androz available?

A: The research evidence overview notes that the initial clinical trials were primarily short-term in duration. Consequently, the long-term effects and durability of response beyond the period of the initial trials are described in official documents as not fully established.

How should Androz be stored and disposed of?

Storage and Disposal Conditions for Androz Tablets

Androz (Sildenafil) tablets must be stored at controlled room temperature, specifically between 20 C to 25 C (68 F to 77 F). To maintain the product's integrity, it must be protected from excessive heat and moisture and kept in the original container with the lid tightly closed.

All medicine must be stored out of the sight and reach of children and pets.

Disposing of Unused Tablets

The preferred method for discarding unused or expired Androz is through an authorized drug take-back program. Sildenafil is not on the list of medicines recommended for flushing down the toilet or pouring down a drain. If a take-back option is unavailable, the tablets should be mixed with an undesirable substance like dirt or coffee grounds, sealed in a bag, and then placed in the household trash.

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

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