Locafen Cream

(1 customer review)

Locafen Cream, containing 2% diltiazem hydrochloride, is presented as a safe, effective, and well-tolerated topical therapeutic option within the United Kingdom for the management of chronic anal fissures and associated anorectal conditions. Its primary mechanism of action—relaxation of the internal anal sphincter and improvement of local blood flow to the affected area—directly addresses the underlying pathophysiology involved in the formation and persistence of anal fissures.

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Dosage form

Pack size

Potency

%2 30G

Manufacturer

Ilko

Origin

Turkey

Generic Name (Ingredient)

Each 1 Gram Of Cream Contains 0.02 Grams Of Diltiazem Hydrochloride.

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Description

Locafen Cream is a topical pharmaceutical product containing diltiazem hydrochloride as its active ingredient, formulated primarily for the management of anal fissures and related anorectal conditions. This report provides an exhaustive analysis of Locafen Cream, encompassing its pharmacological properties, clinical efficacy, safety profile, recommended usage, and its broader therapeutic context. Drawing from the latest clinical guidelines, product monographs, and peer-reviewed studies, this article aims to serve as an authoritative resource for healthcare professionals, researchers, and patients seeking detailed information about Locafen Cream and its applications.

Locafen Cream, with each gram containing 0.02 grams (2%) of diltiazem hydrochloride, is widely used in Turkey and other regions for the topical treatment of anal fissures, offering a non-surgical alternative for patients suffering from this painful condition. Diltiazem, a calcium channel blocker, exerts its therapeutic effect by relaxing the internal anal sphincter, thereby reducing anal pressure, improving local blood flow, and promoting healing of the fissure. The cream is also indicated for the symptomatic relief of pain, bleeding, and itching associated with anal fissures and, in some cases, hemorrhoids.

Clinical studies have consistently demonstrated the efficacy and safety of topical diltiazem preparations, with a favorable side-effect profile compared to alternative chemical sphincterotomy agents such as glyceryl trinitrate. This report will systematically explore the pharmacodynamics, pharmacokinetics, clinical indications, administration guidelines, adverse effects, contraindications, and special considerations related to Locafen Cream, providing a holistic understanding of its role in contemporary anorectal therapeutics.

Introduction to Locafen Cream

Locafen Cream is a topical medication primarily marketed in Turkey, formulated for the treatment of anal fissures and associated anorectal symptoms. Its main active ingredient, diltiazem hydrochloride, is a well-established calcium channel blocker with extensive use in cardiovascular medicine, but its topical application in proctology represents a significant advancement in the non-surgical management of chronic anal fissures.

Anal fissures are longitudinal tears in the anoderm, often resulting in severe pain, bleeding, and spasm of the internal anal sphincter. The pathophysiology involves a cycle of sphincter hypertonia, local ischemia, and impaired healing, which topical diltiazem aims to disrupt by inducing sphincter relaxation and enhancing mucosal perfusion.

Locafen Cream is supplied as a white, homogeneous preparation, with each gram containing 0.02 grams (2%) of diltiazem hydrochloride, along with excipients such as propylene glycol, cetostearyl alcohol, and other stabilizing agents. The cream is intended for external use, applied directly to the perianal area and, when indicated, within the anal canal up to a specified depth. Its use is supported by robust clinical evidence, demonstrating high rates of fissure healing, symptom relief, and a low incidence of adverse effects. This introduction sets the stage for a detailed exploration of Locafen Cream’s pharmacology, clinical applications, and practical considerations.

Pharmacological Properties of Diltiazem Hydrochloride

Mechanism of Action

Diltiazem hydrochloride, the active component of Locafen Cream, belongs to the class of non-dihydropyridine calcium channel blockers. Systemically, diltiazem is widely used for its antihypertensive, antianginal, and antiarrhythmic effects, mediated through inhibition of L-type calcium channels in vascular smooth muscle and cardiac tissue. In the context of topical application for anorectal disorders, diltiazem’s primary mechanism involves the relaxation of the internal anal sphincter, a smooth muscle structure that is often hypertonic in patients with chronic anal fissures.

By blocking the influx of calcium ions through slow channels in the smooth muscle cell membrane, diltiazem reduces intracellular calcium concentrations, leading to muscle relaxation. This pharmacological effect decreases anal canal resting pressure, alleviates sphincter spasm, and enhances local blood flow to the anoderm, thereby promoting healing of the fissure and reducing ischemic pain. Unlike glyceryl trinitrate, another agent used for chemical sphincterotomy, diltiazem does not induce significant systemic vasodilation or headaches, making it a preferred choice for many patients.

Pharmacokinetics

When applied topically, diltiazem exhibits minimal systemic absorption, with most of its action confined to the local application site. Oral diltiazem is known to undergo extensive first-pass metabolism in the liver, resulting in a bioavailability of approximately 40%, but such systemic exposure is negligible with topical use. The risk of systemic side effects is therefore low, although caution is advised in patients with hepatic impairment, as even minimal absorption could theoretically lead to higher plasma concentrations. Diltiazem is extensively metabolized in the liver, primarily via CYP3A4-mediated N-demethylation, and is highly protein-bound in plasma.

These pharmacokinetic properties are relevant for systemic formulations but are of limited concern with topical administration, provided the cream is used as directed and not applied to large or broken areas of skin.

Excipients and Formulation

Locafen Cream contains several excipients designed to enhance the stability, absorption, and tolerability of the preparation. These include propylene glycol, which serves as a solvent and humectant; cetostearyl alcohol, which acts as an emulsifying agent; and other stabilizers such as phenoxyethanol and liquid paraffin. The cream is formulated to be non-irritating, easy to apply, and free from corticosteroids, making it suitable for prolonged use in sensitive perianal skin. The absence of steroids reduces the risk of skin atrophy and other local complications associated with long-term corticosteroid use.

Clinical Indications and Therapeutic Uses

Primary Indication: Anal Fissure

The principal indication for Locafen Cream is the topical treatment of anal fissures, particularly chronic fissures that have failed to heal with conservative measures. Anal fissures are common proctological conditions characterized by a linear tear in the anoderm, typically presenting with severe pain during and after defecation, rectal bleeding, and sphincter spasm. The pathogenesis involves a cycle of trauma, sphincter hypertonia, local ischemia, and impaired healing, which can perpetuate the fissure and lead to chronicity.

Topical diltiazem has emerged as a first-line therapy for chronic anal fissures, offering a non-surgical alternative to lateral internal sphincterotomy, the traditional surgical treatment. By reducing sphincter tone and improving mucosal blood flow, Locafen Cream promotes healing in a significant proportion of patients, often obviating the need for surgery. Clinical studies have reported healing rates ranging from 48% to 75% with 6–8 weeks of twice-daily application, with additional courses leading to further improvement in refractory cases.

Secondary Indications

While the primary indication is anal fissure, Locafen Cream may also be used for the symptomatic relief of other anorectal conditions characterized by sphincter spasm, pain, or local ischemia. These include:

  • Hemorrhoids (piles): The cream may provide symptomatic relief of pain, itching, and local discomfort associated with hemorrhoids, although it is not a curative treatment for hemorrhoidal disease.

  • Postoperative anorectal pain: In selected cases, topical diltiazem may be used to manage pain and promote healing following anorectal surgery, such as hemorrhoidectomy or fissurectomy, although this is an off-label use.

  • Other causes of anal spasm or pain: Locafen Cream may be considered in cases of non-specific anal pain or spasm, provided that other causes have been excluded and under the supervision of a specialist.

Comparative Efficacy

Several randomized controlled trials and observational studies have compared topical diltiazem with other agents used for chemical sphincterotomy, such as glyceryl trinitrate (GTN) and botulinum toxin. Diltiazem is generally associated with a lower incidence of headaches and systemic side effects compared to GTN, while offering comparable or superior healing rates. The need for surgical intervention (lateral internal sphincterotomy) can be avoided in up to 70% of cases with successful topical therapy.

Dosage, Administration, and Practical Considerations

Recommended Dosage and Duration

The standard dosage of Locafen Cream is a small amount (approximately 2–2.5 cm of cream, or about 0.7 grams) applied to the perianal area and just inside the anal canal, twice daily-morning and evening. The recommended duration of treatment is 6–8 weeks, or until symptoms resolve and the fissure has healed. In some cases, a second course of treatment may be prescribed if healing is incomplete after the initial period.

Method of Application

Proper application technique is essential to maximize the therapeutic benefit and minimize the risk of local irritation. Patients should be instructed to:

  • Wash hands thoroughly before and after application.

  • Apply a small amount of cream to the fingertip, using a disposable glove or finger covering if preferred.

  • Gently insert the finger up to the first joint (approximately 1–1.5 cm) into the anal canal and apply the cream in a circular motion, ensuring even distribution.

  • Avoid applying the cream higher than the recommended depth to prevent unnecessary irritation.

  • Dispose of gloves or coverings appropriately and wash hands after use.

It is advisable to apply the cream after bowel movements to ensure prolonged contact with the affected area and to avoid immediate expulsion of the medication. Patients should be counseled to maintain good anal hygiene and avoid trauma to the area during the treatment period.

Special Populations

Pediatric Use

The safety and efficacy of Locafen Cream in children have not been established, and its use in pediatric patients should be considered only under specialist supervision and when the potential benefits outweigh the risks.

Elderly Patients

Elderly patients may be more susceptible to the systemic effects of diltiazem if significant absorption occurs, although this is rare with topical use. Careful monitoring is advised, particularly in those with comorbid cardiovascular or hepatic conditions.

Hepatic and Renal Impairment

Diltiazem is extensively metabolized in the liver, and systemic exposure may be increased in patients with hepatic impairment. Although topical absorption is minimal, caution is warranted, and close monitoring is recommended in patients with significant hepatic or renal dysfunction.

Pregnancy and Lactation

Locafen Cream is classified as Pregnancy Category C, indicating that animal studies have shown adverse effects on the fetus, but there are no adequate and well-controlled studies in pregnant women. The cream should be used during pregnancy only if the potential benefits justify the potential risks to the fetus. Diltiazem is excreted in breast milk when administered orally, and caution is advised when using the cream in breastfeeding women. The decision to use Locafen Cream during pregnancy or lactation should be made in consultation with a healthcare provider.

Safety Profile, Side Effects, and Contraindications

Common and Uncommon Side Effects

Locafen Cream is generally well tolerated, with most adverse effects being mild and localized to the site of application. The most frequently reported side effects include:

  • Local burning, itching, or irritation at the application site.

  • Headaches, typically mild and transient, occurring in a small proportion of patients.

  • Light-headedness or dizziness, particularly when standing up quickly, although this is rare with topical use.

  • Rectal bleeding, which may be related to the underlying fissure rather than the medication itself.

In clinical studies, the incidence of side effects ranges from 10% to 15%, with most patients able to continue treatment despite mild symptoms. Severe or persistent side effects are rare, and the risk of systemic toxicity is minimal when the cream is used as directed.

Serious Adverse Reactions

Serious adverse reactions to topical diltiazem are exceedingly rare, but systemic absorption may theoretically lead to cardiovascular effects such as bradycardia, hypotension, or conduction disturbances in susceptible individuals. Patients with pre-existing cardiac conditions, severe hypotension, or known hypersensitivity to diltiazem should use the cream with caution or avoid it altogether.

Contraindications

Locafen Cream is contraindicated in patients with:

  • Known hypersensitivity to diltiazem or any of the excipients in the formulation.

  • Severe hypotension, advanced heart block, or recent myocardial infarction, due to the risk of exacerbating cardiovascular compromise if significant systemic absorption occurs.

  • Severe hepatic impairment, unless under close medical supervision, due to the potential for increased systemic exposure.

  • Open wounds or extensive broken skin in the application area, which may increase systemic absorption and the risk of adverse effects.

Drug Interactions

Systemic diltiazem is known to interact with a range of medications, including beta-blockers, digoxin, and other antihypertensives, due to its effects on cardiac conduction and contractility. However, with topical use, clinically significant drug interactions are unlikely, given the minimal systemic absorption. Patients should nonetheless inform their healthcare provider of all medications they are taking, especially if they have underlying cardiovascular disease or are using other topical agents in the same area.

Key Information

Parameter Details
Active Ingredient Diltiazem hydrochloride 2% (0.02 g per 1 g cream)
Indications Chronic anal fissure, symptomatic relief of pain, bleeding, itching, hemorrhoids
Dosage Apply 2–2.5 cm of cream (approx. 0.7 g) to perianal area and 1–1.5 cm into anal canal, twice daily for 6–8 weeks
Method of Application External use; apply with fingertip or disposable glove, after hand washing
Common Side Effects Local burning, itching, irritation, headache, light-headedness, rectal bleeding
Serious Side Effects Rare; systemic effects (bradycardia, hypotension) possible with excessive absorption
Contraindications Hypersensitivity to diltiazem, severe hypotension, advanced heart block, severe hepatic impairment, open wounds in application area
Special Populations Use with caution in elderly, hepatic/renal impairment, pregnancy/lactation (Category C)
Drug Interactions Minimal with topical use; caution with other cardiovascular agents if systemic absorption suspected
Storage Store below 25°C, do not use after 4 weeks of opening

Clinical Evidence and Comparative Studies

Efficacy in Anal Fissure Healing

Multiple clinical studies have evaluated the efficacy of topical diltiazem in the management of chronic anal fissures, particularly in patients who have failed to respond to glyceryl trinitrate (GTN) ointment. Healing rates reported in the literature range from 48% to 75% after 6–8 weeks of therapy, with significant improvement in pain, bleeding, and sphincter spasm.

In a prospective study of 71 patients, 75% experienced healing after 2–3 months of treatment, with additional courses leading to further improvement in refractory cases. Another study reported that 49% of patients achieved complete healing within 8 weeks, with symptom improvement in an additional 25%. These results are comparable to or better than those achieved with GTN, with a lower incidence of systemic side effects such as headaches.

Safety and Tolerability

The safety profile of topical diltiazem is favorable, with most adverse effects being mild and localized. Headaches, a common side effect of GTN, are less frequent and less severe with diltiazem, enhancing patient compliance and treatment satisfaction. The risk of fecal incontinence, a concern with surgical sphincterotomy, is absent with topical therapy, making it a safer option for many patients. Early recurrences of fissures are not uncommon but can often be managed with repeat courses of chemical sphincterotomy.

Patient-Reported Outcomes

Patient-reported outcomes in studies of topical diltiazem have consistently shown high levels of satisfaction, with significant reductions in pain, bleeding, and discomfort. The ease of application, absence of systemic side effects, and avoidance of surgery are frequently cited as advantages by patients. Adherence to the recommended application regimen and maintenance of good anal hygiene are key factors in achieving optimal outcomes.

Practical Guidance for Healthcare Providers

Patient Selection

Locafen Cream is suitable for most adults with chronic anal fissures who have not responded to conservative measures such as dietary modification, stool softeners, and sitz baths. It is particularly useful in patients who are poor candidates for surgery due to comorbidities or personal preference. Exclusion criteria include hypersensitivity to diltiazem, severe cardiovascular disease, and significant hepatic impairment.

Counseling and Monitoring

Healthcare providers should counsel patients on the correct method of application, expected duration of therapy, and potential side effects. Patients should be advised to report any severe or persistent symptoms, such as worsening pain, rectal bleeding, or signs of systemic toxicity. Follow-up visits should be scheduled to assess healing, monitor for adverse effects, and reinforce adherence to therapy.

Management of Adverse Effects

Most side effects are mild and self-limiting, but symptomatic management may include the use of simple analgesics for headaches or topical emollients for local irritation. In rare cases of severe or persistent adverse effects, discontinuation of the cream and consideration of alternative therapies may be necessary.

Special Considerations

In pregnant or breastfeeding women, the use of Locafen Cream should be limited to cases where the potential benefits outweigh the risks, and only under close medical supervision. Pediatric use is not routinely recommended due to the lack of safety and efficacy data. Patients with hepatic or renal impairment should be monitored closely for signs of systemic absorption and toxicity.

Broader Therapeutic Context and Future Directions

Place in Therapy

Locafen Cream represents a significant advancement in the non-surgical management of chronic anal fissures, offering high rates of healing, excellent tolerability, and avoidance of the risks associated with surgical sphincterotomy. Its use is supported by clinical guidelines and expert consensus as a first-line or second-line therapy, particularly in patients who have failed to respond to GTN or other topical agents.

Emerging Applications

While the primary indication remains anal fissure, ongoing research is exploring the potential role of topical diltiazem in other anorectal conditions, such as postoperative pain, hemorrhoids, and non-specific anal spasm. Further studies are needed to establish its efficacy and safety in these settings, as well as to optimize dosing regimens and formulations.

Challenges and Limitations

Despite its advantages, Locafen Cream is not universally effective, with a proportion of patients failing to achieve complete healing or experiencing recurrent fissures. Adherence to the prescribed regimen, proper application technique, and management of underlying risk factors (such as constipation) are critical to success. The lack of long-term safety data, particularly in special populations, underscores the need for ongoing vigilance and research.

Conclusion

Locafen Cream, containing 2% diltiazem hydrochloride, is a safe, effective, and well-tolerated topical therapy for the management of chronic anal fissures and related anorectal conditions. Its mechanism of action-relaxation of the internal anal sphincter and improvement of local blood flow-addresses the underlying pathophysiology of fissure formation and persistence. Clinical studies have demonstrated high rates of healing, significant symptom relief, and a favorable side-effect profile, positioning Locafen Cream as a first-line or second-line therapy in contemporary proctological practice.

The cream’s ease of application, minimal systemic absorption, and avoidance of corticosteroids or invasive procedures make it an attractive option for both patients and clinicians. Adherence to recommended dosing, proper application technique, and regular follow-up are essential to maximize therapeutic outcomes and minimize adverse effects. While further research is warranted to explore its broader applications and long-term safety, Locafen Cream remains a cornerstone of non-surgical management for chronic anal fissures, offering hope and relief to patients suffering from this debilitating condition.

In summary, Locafen Cream exemplifies the integration of pharmacological innovation and patient-centered care in the management of anorectal disorders. Its continued use and study will undoubtedly refine its role in therapy and expand the horizons of non-surgical proctology.

1 review for Locafen Cream

  1. Lorraine

    Can I order 15mg reductil please

    • Medical Guidance Center

      Hello Lorraine, this is WikiKenko,

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