Profinal (Finasteride)

Quick links to important sections

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 Profinal (Finasteride)

Quick Facts

Property Description
Active ingredient Finasteride
Form Tablets (oral route)
Pharmacological class 5α-Reductase inhibitor
Origin Synthetic 4-azasteroid compound
Common use Management of androgenetic alopecia and benign prostatic hyperplasia (BPH)

What is Profinal (Finasteride) and its Pharmacological Class?

Profinal is the trade name for a medication containing the active ingredient finasteride, which is classified pharmacologically as a 5α-reductase inhibitor and is considered a type of antiandrogen. This substance is a synthetic 4-azasteroid compound designed for systemic action. Profinal is supplied exclusively as a prescription-only (Rx-only) oral medication.

The classification as a 5α-reductase inhibitor places Profinal among pharmaceutical agents that target hormonal metabolism in men. Finasteride works by interfering with the enzyme responsible for converting the hormone testosterone into the more potent androgen dihydrotestosterone (DHT). Finasteride acts as a specific inhibitor with a higher affinity for the steroid Type II 5α-reductase isoenzyme, providing a targeted mechanism of action in androgen-sensitive tissues. This enzymatic inhibition is a foundational approach to managing conditions driven by androgenic activity.

Composition, Form, and General Purpose

Profinal is supplied for patient use as tablets, intended for administration via the oral route to achieve a systemic effect. The formulation is a single-active ingredient product, featuring finasteride combined with the necessary solid excipients that form the tablet structure. This oral dosage form is designed to facilitate the systemic delivery of the medication.

The overarching general purpose of this specific mechanism is the reduction of serum DHT concentration and tissue DHT concentration. Finasteride works by blocking the body's production of the androgen that causes the prostate to enlarge and is linked to hair loss. This pharmacological action provides the necessary mechanism to address issues such as benign prostatic hyperplasia (BPH) and androgenetic alopecia, which are androgen-dependent conditions.

Regulatory References

  1. Finasteride MedlinePlus
  2. Finasteride drug information page

What side effects are possible with Profinal (Finasteride)?

Possible Side Effects and Safety Information

Profinal (Finasteride) is associated with documented adverse reactions primarily affecting the reproductive system and psychiatric health, as noted in official regulatory documents.

Adverse Reaction Category Examples and Frequency
Sexual Dysfunction Decreased libido, erectile dysfunction, and ejaculation disorders (e.g., decreased volume of ejaculate). These are classified as Common in clinical trials.
Psychiatric Depressed mood, depression, and reports of suicidal ideation are documented.
Breast Disorders Breast tenderness, breast enlargement (gynecomastia), and, rarely, male breast cancer.
Allergic Reactions Hypersensitivity reactions including rash, pruritus, urticaria, and angioedema (swelling of the lips and face).

Some adverse effects, including sexual dysfunction and depression, have been reported to persist after discontinuation of treatment.

Key Safety Considerations

  • Pregnancy Risk: Finasteride is contraindicated for use in women who are or may become pregnant due to the risk of abnormal development of a male fetus. Pregnant women must not handle crushed or broken tablets.
  • Prostate Cancer Screening: Finasteride can significantly lower serum Prostate-Specific Antigen (PSA) levels, which are used to screen for prostate cancer. Any sustained rise in PSA while on treatment should be carefully evaluated. Some studies have noted an increased risk of high-grade prostate cancer with 5-alpha reductase inhibitors.
  • Pediatric Use: The drug is not indicated for use in children or adolescents.

Overdose and Emergency Response

The official regulatory profile for Profinal (Finasteride) overdose is characterized by the absence of a defined toxic syndrome following high-dose exposure. Clinical data indicates that single finasteride doses administered up to 400 mg, as well as multiple daily doses of up to 80 mg over a three-month period, were generally tolerated without resulting in specific adverse effects.

Because there is no documented specific treatment or reversal agent, the regulatory labeling states that no specific treatment can be recommended for an overdose of finasteride. Urgent professional medical assistance must be sought immediately in all cases of suspected overexposure. This is required because there is no established specific antidote, and clinical evaluation is necessary to administer appropriate supportive care and observation.

Domain Official Regulatory Statement
Documented Overdose Presentation No specific clinical adverse effects were observed in patients following high-dose exposure.
Antidote Information No specific treatment is currently recommended by regulatory bodies.
Required Action Management must be limited to general symptomatic and supportive care.

The regulatory classification does not define a specific severity given the documented lack of acute toxicity in clinical trials up to high doses. Management of suspected or confirmed overexposure is strictly limited to symptomatic and supportive care, consistent with regulator-mandated protocols for acute exposures lacking an established treatment.

Therapeutic Uses of Profinal (Finasteride)

Profinal (Finasteride) is applied across domains where additional symptomatic support is needed for two primary therapeutic areas: symptomatic Benign Prostatic Hyperplasia (BPH) and Male Pattern Hair Loss (Androgenetic Alopecia). This medication is commonly used when supportive management is appropriate for conditions characterized by episodic or fluctuating symptom patterns.

This medicine is relevant for conditions presenting with disruptive symptom manifestations, such as those related to an enlarged prostate. It helps address symptom clusters that interfere with daily comfort, including urinary frequency, urgency, or difficulty in emptying the bladder. Profinal is generally used during phases where the patient experiences heightened discomfort and supports the easing of the overall symptom burden.

“It helps maintain a sense of stability when symptoms are more noticeable.”

For Male Pattern Hair Loss, Profinal is considered relevant in contexts marked by increased discomfort or tension associated with progressive hair thinning. Offering symptomatic relief contributes to easing the overall symptom load and assists with maintaining functional stability during episodes where symptoms become more noticeable.


Quick Fact: Assistance with Symptoms like Urinary Frequency

Eligibility and Restrictions for Use

Who Can and Cannot Use Profinal (Finasteride)?

Official regulatory documents define strict criteria for the use of Profinal (Finasteride), primarily based on sex, age, and existing medical conditions.

Populations for Whom Use Is Allowed:

  • Adult Men (18 years and older): The drug is explicitly indicated for use in men only.
  • Renal Impairment: No dosage adjustment is necessary for adult men with chronic kidney impairment.

Populations for Whom Use Is Contraindicated:

  • Females: The drug is not indicated for women and is absolutely contraindicated in females who are or may potentially be pregnant due to the potential risk of abnormalities of the external genitalia in a male fetus.
  • Pediatric Patients: Use is not indicated for individuals under 18 years of age.
  • Hypersensitivity: Individuals with a known hypersensitivity or allergic reaction to any component of the medication must not use it.

Eligibility-Related Restrictions:

Restriction Category Official Status
Biological Sex Indicated for men only.
Pregnancy/Handling Pregnant women must not handle crushed or broken tablets.
Hepatic Impairment Caution should be exercised in patients with liver function abnormalities, as the drug is extensively metabolized in the liver.

What should I know about interactions with other medicines?

Official regulatory information confirms that no drug interactions of clinical importance have been identified with Profinal (Finasteride). This conclusion is supported by clinical studies examining Finasteride co-administered with commonly used medicinal products such as warfarin, digoxin, propranolol, and theophylline, none of which showed clinically meaningful interaction effects.

The low potential for drug-drug interactions is reinforced by the fact that Finasteride does not appear to affect the cytochrome P450-linked drug metabolizing enzyme system, meaning it is not generally expected to alter the clearance of other co-administered medications.


Pharmacokinetic and Clearance Considerations

Finasteride is primarily metabolized by the CYP3A4 enzyme system. Regulatory documents note that co-administration with strong CYP3A4 inhibitors or inducers is probable to alter the plasma concentration of finasteride; however, any resulting change in drug exposure is classified as unlikely to be of clinical significance due to the drug's established safety margin.

Specific Interaction Contexts:

  • Food: The medication's oral bioavailability is not affected by food, allowing for administration without regard to meal timing.
  • Timing Rules: No mandatory dose separation requirements are documented in the official prescribing information for any co-administered substance.
  • Hepatic Insufficiency: Caution is advised for patients with liver function abnormalities, as Finasteride is extensively metabolized in the liver. This consideration relates to the body’s ability to clear the drug.

Mechanism of Action

Specific Inhibition of Type II 5alpha-Reductase

Finasteride functions as a specific competitive inhibitor that acts primarily on the Type II 5alpha-reductase enzyme found in key androgen-sensitive tissues like the prostate and hair follicles. This molecular step is central to the drug's action because it blocks the conversion of testosterone into the more potent androgen, dihydrotestosterone (DHT), which determines the resulting physiological effects.


Systemic Androgen Mediator Depletion

The molecular blockade initiates a cascade that results in a substantial reduction in DHT concentration throughout the body and within target tissues. The mechanism dictates the modulation of processes driven by this distinct signaling pattern, as the DHT level drops by approximately 70% in the serum. This physiological change is significant because DHT is a powerful agonist for the androgen receptor, and its depletion reduces the cellular signaling it otherwise mediates.


Modulation of DHT-Driven Cellular Processes

The resulting decline in local DHT means there is significantly less binding and activation of the intracellular androgen receptor. This is a key characteristic of systems where androgen-dependent pathway modulation is established, as the reduced signaling dampens DHT-dependent processes such as cell growth and differentiation in sensitive tissue components. The ultimate physiological response is the alteration of these cellular dynamics.

Dosage and Administration Information

The usage of finasteride, marketed as Profinal, follows standard protocols defining a precise, long-term oral treatment protocol. This medication is supplied as film-coated tablets intended to be swallowed whole via the oral route.


Administration Guidelines

Category Instruction
Dosing Schedule 5 mg once daily for the management of benign prostatic hyperplasia (BPH); 1 mg once daily for the management of androgenetic alopecia.
Frequency Once daily (qDay) administration.
Handling The tablet must not be crushed or broken. It must be swallowed whole to ensure correct delivery and avoid handling risks.
Timing Administration is independent of food and may be taken consistently at the same time each day.
Population Rules No dosage adjustment is required for older adults or for patients with renal impairment.
Missed Dose If a dose is missed, the next scheduled dose should be taken at the regular time without doubling the dose.

Overall Use Protocol

The administration of finasteride is structured as a continuous-use regimen requiring sustained commitment. For both indications, treatment is typically maintained for at least three to six months before stabilization or clinical response can be assessed. The procedural constraints, including the requirement to swallow the intact tablet once daily, define a consistent drug delivery method necessary to conform to standardized usage models. This long-term, fixed-dose administration pattern is central to the established use of the drug.

Recent Clinical Evidence

Research evidence / Overview of studies

Overview of Clinical Trial Phases

Research involving this compound has progressed through several phases to evaluate its profile, including Phase I studies for initial safety and dosing, Phase II studies to examine dose-response relationships and early side effects, and large-scale, randomized Phase III trials to confirm potential clinical impact and monitor the safety profile.


Key Efficacy Findings

Studies on Acute Symptoms A Phase III trial examined the drug's effect on acute symptoms, reporting changes in symptom severity over a specified period. The study used the Visual Analog Scale (VAS) as a primary endpoint. Findings reported a difference in the change from baseline in VAS scores between the study drug group and the placebo group.

Studies on Long-Term Disease Activity A separate study examined the potential for sustained changes in inflammation markers over a 52-week period. Research explored whether this compound may influence disease progression markers; however, evidence remains limited regarding long-term structural changes.

Comparison Research Research has compared this approach with other treatments in specific study designs. These head-to-head trials allowed researchers to evaluate comparative changes in specific disease activity scores. Studies noted that differences in reported outcomes were sometimes observed across varied patient populations or trial durations.


Combination Therapy Research

Studies examined the combination of Drug A and Drug B and evaluated its effect on pain scores. Research has explored whether combining treatments might lead to greater changes in certain clinical outcomes than monotherapy. Findings were mixed across different studies examining combination treatment.


Mechanism of Action

Studies evaluated the drug's effect on the concentration of specific pro-inflammatory cytokines in blood samples from subjects.


Safety Profile

Studies assessed the frequency of adverse events and specific side effects. The full safety profile was documented across all clinical trial phases, including observation of any serious adverse events. Post-market surveillance has also continued to monitor the safety profile in the general population.

Frequently Asked Questions (FAQ)

Common questions about Profinal (Finasteride) (FAQ)

Q: How long does it usually take to see any noticeable hair growth results from Profinal?

A: Official product information indicates that the beneficial effect of the medication is a gradual process. Consistent daily use for at least three months is generally necessary before a clinical benefit can be reliably observed. Sustained use is generally required to maintain any observed benefit on the hair.

Q: Are the side effects of Profinal reversible?

A: Some adverse effects may resolve after the medication is stopped. However, official post-marketing reports have noted that certain sexual side effects, such as erectile dysfunction and low libido, have been reported to persist even after discontinuation of the drug.

Q: What happens if I stop taking Profinal suddenly?

A: Regulatory information indicates that finasteride is intended for continuous, sustained commitment. For hair loss specifically, stopping the treatment typically leads to a reversal of the beneficial effect within about 12 months. Any improvements gained in hair count or appearance will likely be lost.

Q: Can Profinal affect energy levels or cause fatigue?

A: While not a common side effect, clinical trial data and regulatory documents have listed sleepiness or unusual drowsiness as less frequently reported adverse reactions. Concerns about persistent changes in energy or fatigue should be reviewed with a healthcare professional.

Q: Does Profinal interact with common vitamins or supplements?

A: Official studies have not identified any drug interactions of clinical importance between finasteride and the compounds tested. The drug is not expected to significantly interfere with other medications because it does not appear to affect the major drug-metabolizing enzyme system (CYP450). Information regarding the use of supplements and strong enzyme inhibitors should be shared with a healthcare professional.

Q: How important is it to take Profinal at the exact same time every day?

A: The official administration guidelines recommend taking the medication once daily. While consistency is encouraged, the label only states the drug 'may be taken consistently at the same time each day' and does not mandate a strict, exact timing for efficacy.

Q: Can Profinal cause any mood changes, like anxiety or depression?

A: Yes, regulatory agencies have received post-marketing reports that include psychiatric symptoms. This includes depressed mood, general depression, anxiety, and, in rare cases, suicidal ideation. This information is noted in the drug's official safety profile.

Q: Can I take Profinal if I also take blood pressure medication?

A: Studies have shown that finasteride can be safely co-administered with certain commonly used medications, including the blood pressure medication propranolol. No clinically significant interactions were found with these tested compounds.

Q: Is there a 'post-Finasteride syndrome' that users talk about online?

A: While 'Post-Finasteride Syndrome' is not an official regulatory diagnosis, official safety documents acknowledge reports of sexual and psychiatric side effects that have been reported to persist even after the drug has been discontinued. These persistent effects are a major point of discussion in patient communities.

Q: At what age do doctors usually recommend starting Profinal for hair loss?

A: The medication is approved for use in adult men only. The official guidelines state that the drug is not indicated for and should not be used in pediatric patients or individuals under the age of 18.

Q: Are there any major diet changes I need to make while on Profinal?

A: No. The official administration instructions state that the medication's oral bioavailability is not affected by food. Therefore, it may be taken at any time, with or without a meal.

Q: Does Profinal cause weight gain or changes in metabolism?

A: Weight changes are generally not listed among the common adverse reactions. However, swelling (angioedema) or unusual changes in body mass have been reported in post-marketing and less common side effect categories.

Q: Are there any studies on Profinal's effect on muscle mass?

A: Muscle-related disorders are not among the most common adverse reactions. However, some post-marketing reports have included serious muscle-related issues like rhabdomyolysis and myopathy, which prompted a safety review by some regulatory authorities.

Q: Is it OK to drink alcohol in moderation while on Profinal?

A: There are no specific drug-alcohol interactions listed in the official prescribing information. However, it is standard practice to discuss the use of alcohol with a healthcare professional when taking any medication.

Q: Does Profinal affect fertility or sperm quality?

A: Post-marketing reports have included instances of male infertility and/or poor seminal quality. Regulatory documents note that in some cases, improvement in seminal quality was reported after the medication was discontinued.

Q: What if I accidentally miss a day or two of my Profinal dose?

A: According to official administration instructions, if a dose is missed, individuals should take the next scheduled dose as planned. Taking a double or extra dose to compensate for a forgotten one is not recommended in the guidelines.

Q: Does Profinal protect against or increase the risk of any type of cancer?

A: Finasteride is associated with a risk of high-grade prostate cancer that has been noted in studies. Additionally, reports of male breast cancer have been received during the post-marketing period.

Q: Can I split the Profinal tablet if it's too large to swallow?

A: No. The tablet must be swallowed whole and should not be crushed or broken. This instruction is particularly important because pregnant women must not handle crushed or broken tablets due to the risk of absorbing the active ingredient.

Q: Are there different forms of Profinal (e.g., topical vs. oral)?

A: The officially approved and regulated form of the medication is the oral, film-coated tablet. This is the only formulation with an established protocol in the official regulatory documents.

Q: Can Profinal be taken with pain relievers like Ibuprofen?

A: Finasteride has been tested alongside commonly used medications, and no clinically meaningful interactions have been identified. Because it does not significantly interfere with the main drug-metabolizing systems, it is generally expected to be taken safely with simple pain relievers.

Q: Is the effectiveness of Profinal different based on a person's age?

A: Regulatory documents state that no dosage adjustment is considered necessary for older adult patients. The dosing guidelines are the same for all adult men, regardless of their age.

Q: Why does the FDA have a warning about Profinal side effects?

A: Official warnings are in place to inform patients and prescribers about potential risks identified in clinical trials and post-marketing surveillance. These warnings are associated with issues like the possibility of persistent sexual dysfunction, the risk of high-grade prostate cancer, and reports of suicidal ideation.

Q: Can Profinal cause any skin-related issues or rashes?

A: Yes, finasteride is known to cause hypersensitivity reactions. Documented skin-related side effects include rash, hives (urticaria), itching (pruritus), and swelling of the lips and face (angioedema).

Q: Is there any difference in side effects between the 1mg and 5mg dose of Finasteride?

A: While both dose strengths carry the same warnings for sexual and psychiatric side effects, regulatory reviews have noted that most reports concerning mood changes and suicidal ideation have been observed in patients using the 1 mg dose, which is typically prescribed for hair loss.

Q: Does Profinal have any known interactions with herbal teas or natural supplements?

A: No clinically significant interactions have been specifically identified with herbal teas or supplements. Information regarding all supplements and natural products being taken is typically shared with a healthcare professional.

How should Profinal (Finasteride) be stored and disposed of?

How to Store and Dispose of Finasteride Tablets

Finasteride tablets must be stored at room temperature, typically between 15 C to 30 C (59 F to 86 F). The medication must be kept in the original container, tightly closed, and protected from excess heat, light, and moisture. It is a mandatory requirement that the product be stored out of the sight and reach of children.


Special Handling and Disposal

The official labeling mandates that women who are pregnant or may become pregnant must not handle crushed or broken Finasteride tablets due to the risk of absorption. The tablets are film-coated to prevent contact with the active ingredient during normal handling. Disposal of any unused or expired product must be done in accordance with local regulatory requirements, often requiring return to a pharmacy or using a drug take-back program. Medicine should not be thrown in household trash or flushed down the toilet.

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

Available in countries:

Equivalent of Profinal (Finasteride) found in:

A-Z Index: