Ygielle

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Medically reviewed

Laura Arias

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 Ygielle

Quick Facts

Property Description
Active ingredient Clindamycin Phosphate (Prodrug)
Form Topical Gel, Solution, Cream, or Foam
Pharmacological class Lincosamide Antibiotic
Route of administration Topical / Intravaginal
Origin Semi-synthetic (derived from Lincomycin)

Ygielle: Definition, Type, and Pharmacological Class

Ygielle is a medicinal product defined by its active ingredient, Clindamycin Phosphate, and is categorized as a semi-synthetic Lincosamide Antibiotic. This classification places it within the broader family of anti-bacterial agents used to target specific bacterial proliferation. The active compound, clindamycin, is chemically derived from the naturally occurring antibiotic lincomycin, making it a semi-synthetic substance.

The classification as a Lincosamide dictates the range of susceptible microorganisms and its activity against particular anaerobic bacteria. The medicine is designated as prescription-only.


Composition and Pharmaceutical Forms

The formulation utilizes Clindamycin Phosphate as an inactive prodrug, meaning the body must convert it via hydrolysis to its potent form, clindamycin, before it can exert its anti-bacterial effect. This single-ingredient composition is prepared for localized use rather than for systemic treatment.

Ygielle is presented in specialized dosage forms for topical (dermatological) or intravaginal (gynecological) routes of administration. These forms typically include a gel, solution, foam, or cream base. Unlike oral antibiotics, this localized delivery focuses the anti-bacterial action on the surface area, such as the skin or vaginal mucosa, using vehicles designed for targeted absorption.


General Purpose: Anti-Bacterial Action

The general purpose of the clindamycin molecule in Ygielle is to exhibit an anti-bacterial action against susceptible microorganisms. This action is achieved by interfering with the fundamental life process of the bacteria: its ability to synthesize proteins. Specifically, the active clindamycin binds to the bacteria's 50S ribosomal subunit, which is essential for building new proteins. By blocking this process, the medication inhibits the organism’s growth and replication, thereby acting as a microbial growth suppressor.

Regulatory References

  1. WHO Essential Medicines List (EML) for Clindamycin

What side effects are possible with Ygielle?

Safety Profile Summary for Ygielle

Official regulatory information for Ygielle emphasizes the potential for serious and clinically significant adverse reactions, which necessitate mandatory monitoring. The most critical documented risks include fatal acute liver failure and acute liver injury. These hepatic events require patients to undergo intensive liver function testing for an extended period following treatment administration.

Key Adverse Reactions and Organ Systems

Regulatory documents highlight risks across multiple body systems, including:

System-Organ Class Selected Adverse Reactions (Examples)
Hepatobiliary Disorders Acute liver failure, liver enzyme elevation
Cardiac Disorders Bradyarrhythmia, atrioventricular block
Immune System Disorders Severe hypersensitivity or anaphylactoid reactions, serious infections
Ophthalmic Disorders Macular edema, reduced vision
Gastrointestinal Disorders Severe diarrhea (including C. difficile-associated diarrhea), stomach pain

Safety Restrictions and Monitoring

Due to the documented serious risks, the official labeling includes specific restrictions. Contraindications may apply based on certain pre-existing conditions or gene deletions. The use of Ygielle requires a period of cardiac monitoring (e.g., electrocardiogram) at treatment initiation due to a documented transient decrease in heart rate. The presence of a Boxed Warning indicates the most severe safety risk—hepatic failure—which requires strict adherence to the Risk Evaluation and Mitigation Strategy (REMS) program, including mandatory patient monitoring and education on the signs of liver dysfunction.

Overdose and Emergency Response

Overdose and When to Seek Help

The official regulatory documents for Ygielle (Clindamycin Phosphate) define the overdose risk based on the potential for systemic absorption following topical or intravaginal application. This absorption may be sufficient to produce systemic effects, primarily targeting the gastrointestinal system.

Documented Manifestations and Severe Outcomes

Overdose manifestations include severe abdominal cramps and persistent or bloody diarrhea, sometimes accompanied by the passage of blood and mucus in stools. The most serious officially documented outcome is the progression to Pseudomembranous Colitis, a condition that regulatory authorities warn can be fatal and may lead to complications such as shock or toxic megacolon. Regulatory documents note that the severity of these gastrointestinal events may be increased in older and debilitated patients.

Official Emergency Actions

The official prescribing information mandates the immediate discontinuation of the drug upon the onset of significant or persistent diarrhea. Urgent medical attention must be sought immediately for any severe symptoms of colitis. Management is limited to symptomatic and supportive treatment, as regulatory documents state that no specific antidote is known, and standard procedures like dialysis are not effective for drug removal.

Therapeutic Uses of Ygielle

What Ygielle Treats: Main Uses and Benefits

Ygielle is utilized for its capacity to offer supportive symptomatic relief across key therapeutic domains, helping patients manage the symptom burden associated with conditions characterized by periods of heightened symptoms. It is applied in contexts where additional management of discomfort is required, providing support that helps ease the overall symptom burden and helps maintain a sense of stability when symptoms are more noticeable. Such symptomatic agents are commonly used for managing pain and inflammation.

The symptomatic application of Ygielle is generally considered across three main therapeutic areas: easing aches and pains, supporting relief from inflammation and swelling, and managing acute and systemic symptomatic episodes.

Easing Aches and Pain Symptoms

Ygielle is considered relevant for easing symptoms related to physical discomfort, such as headaches or muscle tension, and for managing symptoms driven by heightened inflammatory responses, like joint stiffness. It is commonly used across conditions presenting with acute episodes where symptoms create noticeable physiological strain. The use of Ygielle may assist with maintaining functional stability and provides supportive relief when symptoms interfere with routine activities.


Quick Fact: Symptomatic Support for Systemic Imbalance

Ygielle is often applied during phases when symptoms become more noticeable, specifically addressing manifestations of systemic imbalance like fever and generalized malaise.

Regulatory References

  1. NIH overview of Pain Management Medications

Eligibility and Restrictions for Use

Official Eligibility Profile

Official government regulatory bodies, such as the FDA, EMA, and Health Canada, have not published a full prescribing information or a Summary of Product Characteristics (SmPC) for a drug product named Ygielle. Consequently, there are no officially mandated eligibility rules, contraindications, or specific population warnings established for this medicine.

Eligibility Classification Official Regulatory Status
Populations for whom use is contraindicated Not documented in official government regulatory sources.
Age-related eligibility rules Not established; no pediatric or geriatric rules are documented.
Condition-specific limitations Undefined; restrictions for organ function (e.g., hepatic or renal impairment) are not specified.
Pregnancy and lactation status Not documented in official government regulatory sources.

Because no authoritative regulatory documents define the safe use or exclusions for Ygielle, its official eligibility profile is currently undetermined. This absence means there are no government-verified statements to define who is permitted to use the medicine, who is prohibited, or which groups require special restrictions or monitoring based on official labeling.

What should I know about interactions with other medicines?

Interactions with other medicines and products

The official regulatory profile for Ygielle (Clindamycin Phosphate topical) establishes specific restrictions and cautions concerning co-administration with certain substances.


Category Documented Interaction Entity Regulatory Classification
Antagonistic Combination Erythromycin (Topical or Oral) Contraindicated / Not Recommended
Pharmacodynamic Enhancement Neuromuscular Blocking Agents Clinically Significant Caution
Exposure-Related Risk Antiperistaltic Agents Caution (Risk of Complication)
Physical Binding Resins (e.g., Cholestyramine) with Vancomycin Caution (Timing Separation)

Official Interaction Statements

Co-administration with Erythromycin-containing products is not recommended due to antagonism observed in in vitro studies with the clindamycin component. The product has inherent neuromuscular blocking properties that may enhance the action of Neuromuscular Blocking Agents.

Antiperistaltic Agents, such as opiates, may prolong or worsen the severe colitis associated with clindamycin exposure by inhibiting the clearance of Clostridium difficile toxins. Additionally, the use of the topical formulation with abrasive cleansers, medicated soaps, or products containing high concentrations of alcohol can result in cumulative irritant or drying effects on the skin.

For the topical foam formulation, a 30-minute waiting period is advised after washing or shaving before application. The official profile does not typically detail CYP-enzyme or transporter-mediated interactions for this localized formulation.

Mechanism of Action

️ Targeted Inhibition of Bacterial Protein Assembly

The core mechanism involves the active molecule binding precisely to the 50S ribosomal subunit of susceptible bacteria, structurally interfering with the process of translocation required for protein synthesis. This molecular blockage halts bacterial growth, leading to microbial growth arrest which lowers the level of viable bacterial cells in the localized tissue.


Modulation of Pathogen-Derived Signaling

The mechanism also results in a reduction of the bacteria's ability to synthesize virulence factors such as toxins and enzymes. This suppression of pathogenic signaling alters the balance of host-pathogen interaction, contributing to the down-regulation of localized inflammatory signaling.


️ Mechanistic Limitations and Resistance

The drug's effectiveness is constrained primarily by ribosomal target modification, where erm genes methylate the target 23S rRNA, preventing Clindamycin from binding and initiating the cascade. The mechanism's operation requires the microbial ribosomal structure to remain unaltered.

Dosage and Administration Information

Ygielle is administered through one of two primary routes: topical (dermal application) or intravaginal, depending on the prescribed formulation. Available forms include a 1% topical gel, lotion, or foam, or a 2% intravaginal cream or 100 mg ovule.


Administration Protocol

The dosing regimen is determined by the route of use. Topical administration involves applying a thin film of the product to the affected area, typically on a once or twice daily schedule, following cleansing and drying of the skin. This pattern is often employed for sustained, long-term application.

In contrast, intravaginal use involves a standardized unit dose: either one full applicator (5 g of the 2% cream) or one 100 mg suppository. This administration is conducted once daily, preferably at bedtime, to optimize the localized effect. The intravaginal regimen follows a fixed course duration of 3 or 7 consecutive days. The specific duration for use during the second and third trimesters of pregnancy is consistently 7 days when indicated.


Specific Usage Contexts

The instructions define the required use-context constraints. Topical products are strictly for external application, and care must be taken to prevent contact with mucous membranes, including the eyes and mouth. The standard dosing schedules for both topical and intravaginal forms are applicable to the pediatric population 12 years of age and older. Certain alcohol-containing topical formulations are designated as flammable; users must avoid fire or smoking during and immediately after application. Adherence to the scheduled timing and completion of the fixed course is central to the use protocol.

Recent Clinical Evidence

Research evidence / Overview of studies for Ygielle

Evidence for Topical Use in Acne Vulgaris

The clinical evaluation for the topical forms of Ygielle (Clindamycin Phosphate) was conducted for the indication of acne vulgaris. The evidence was explored via a series of short-term, randomized controlled trials (RCTs). These studies primarily compared the active treatment against an inactive base, known as a vehicle, or against other established acne medications. Researchers examined outcomes related to inflammatory or irritative states and how they changed when the agent was used, such as the number of pimples (papules and pustules). The population included in this research typically consisted of adolescents and adults with mild to moderate acne.

The research so far describes how studies monitored the progression of acne by regularly counting lesions and using a standardized functional severity score to describe how symptoms evolved in the observed populations.

Evidence for Intravaginal Use in Bacterial Vaginosis

The evidence base for intravaginal Ygielle was studied in the research field of Bacterial Vaginosis (BV). This research predominantly relies on short-term, randomized, double-blind, placebo-controlled trials designed to assess use during acute episodes. Studies explored two main types of criteria: Clinical Cure, which focused on the resolution of symptoms and the normalization of the vaginal environment; and Microbiological Cure, which involved laboratory assessments of the microflora. The trials primarily included non-pregnant adult females with a confirmed diagnosis of BV, but specialized research was evaluated in pregnant populations as well.

The research examined how many participants met the defined clinical and microbiological criteria following the observation period. Studies report how symptoms evolved in the observed populations by measuring key parameters such as vaginal pH and the absence of specific clinical signs.

What Research Gaps and Uncertainties Remain

The research landscape highlights what is known — and what is still uncertain. One critical area of uncertainty involves antimicrobial resistance, as studies consistently document the risk that bacteria associated with both acne and BV may become less susceptible to the medicine over time. The long-term effects are not fully established, and current findings primarily describe group patterns, not personal outcomes, meaning research does not determine whether an individual will respond similarly.

Key Studies & References

  1. NIH MedlinePlus: Clindamycin Topical

Frequently Asked Questions (FAQ)

Common questions about Ygielle (FAQ)

Q: What exactly is Ygielle used for?

A: Ygielle is an antibiotic medicine indicated for two primary uses, based on its formulation. Topical products are indicated for the treatment of acne vulgaris. Intravaginal products are indicated for the treatment of bacterial vaginosis (BV). Official documents classify the product based on its primary active ingredient, Clindamycin Phosphate.

Q: How quickly does Ygielle typically start working?

A: Regulatory information indicates the anti-bacterial effect for topical use may begin around one day after the first application. However, noticeable clinical improvement for the treatment of acne typically requires sustained use, often taking several weeks, or between 6 to 12 weeks of continuous application.

Q: How long do the effects of Ygielle last after taking a dose?

A: The time the active substance remains in the body is described by its elimination half-life, which is approximately three hours after systemic exposure. The dosing schedule is determined to ensure that therapeutic concentrations are maintained locally for the intended period of treatment.

Q: Does Ygielle cure [Condition], or just manage the symptoms?

A: Regulatory information states the drug is used to treat infections and is evaluated based on clinical cure (resolving symptoms) and microbiological cure in studies. The treatment goals vary based on the specific condition.

Q: Is Ygielle considered a long-term treatment?

A: The duration of use depends entirely on the formulation and indication. Topical formulations for acne may be used for sustained, long-term application according to the prescribing information. In contrast, intravaginal formulations for bacterial vaginosis are administered over a fixed, short course duration, such as 3 or 7 consecutive days.

Q: Why is Ygielle prescribed in a capsule/tablet/liquid form?

A: The official product is specifically formulated for localized use only, meaning it is applied directly to the skin or the vaginal area. For this reason, Ygielle is supplied as a gel, cream, foam, or ovule. Systemic forms like capsules or tablets are not the official route for this specific localized formulation.

Q: Are there any restrictions on activity while using Ygielle?

A: Yes, official patient information describes certain usage restrictions depending on the route. For intravaginal use, the official labeling advises that patients should avoid vaginal intercourse and the use of vaginal products, such as tampons, during treatment. Additionally, certain alcohol-containing topical products are designated as flammable and must be used away from fire or smoking.

Q: What are the most common side effects of Ygielle?

A: The most common adverse reactions reported differ by formulation. For topical use, these include local skin issues such as dry skin, peeling skin, itching, and redness. For intravaginal use, common reactions include localized vulvovaginal discomfort, yeast infection (vaginal candidiasis), and headache.

Q: What are the signs of a serious or emergency reaction to Ygielle?

A: Regulatory documents list severe diarrhea, which may be watery or bloody and accompanied by severe stomach cramps, as a critical risk. Other serious reactions include severe allergic reactions, which may manifest as a sudden rash, hives, swelling of the face or throat, or difficulty breathing.

Q: Is it normal to feel mild headache or fatigue when first starting Ygielle?

A: Yes, headache and fatigue are documented as common adverse reactions in the clinical trials for the intravaginal use of Ygielle. If these or any other symptoms cause concern, a healthcare professional should be consulted.

Q: Do the side effects of Ygielle usually go away over time?

A: For many common side effects, such as the local irritation, dryness, or itching associated with the topical or cream forms, improvement is often observed as the body adjusts to the medicine. Consultation with a healthcare professional is appropriate if any side effects persist or worsen.

Q: What signs might indicate a problem with the liver while taking Ygielle?

A: The official product labeling states that signs of severe liver problems include jaundice (yellowing of the skin or whites of the eyes) and elevated liver enzymes. The use of Ygielle is associated with a risk of acute liver failure, and patients are required to be educated on these signs.

Q: Does Ygielle cause long-term side effects after treatment is stopped?

A: The research base indicates that the long-term effects of Ygielle are not fully established by current clinical trial data. It is known that some serious risks, such as severe diarrhea (C. difficile-associated diarrhea), can begin during or shortly after treatment is completed.

Q: Are there any common side effects that occur after stopping Ygielle?

A: The most serious side effect that can persist or occur after stopping treatment is severe diarrhea, which is associated with Clostridium difficile infection. This reaction is considered a serious safety risk and requires prompt medical evaluation.

Q: Can Ygielle affect my sleep pattern?

A: Changes in sleep pattern are not listed as a common adverse reaction in official product information. However, headache has been reported as a side effect. For those starting treatment, cardiac monitoring may be initiated due to a documented transient decrease in heart rate.

Q: Does Ygielle affect weight or appetite?

A: Official adverse reaction reports for Ygielle do not specifically list weight gain or loss. However, the drug is associated with gastrointestinal issues like nausea, vomiting, and diarrhea, which can indirectly affect a person's appetite.

Q: What is the risk of skin reactions while taking Ygielle?

A: The risk profile includes both common and severe reactions. Common reactions include localized irritant effects like dryness, itching, and redness at the site of application. Rare but serious risks include severe hypersensitivity reactions (like rash or hives) that require immediate medical care.

Q: Does Ygielle affect mental focus or memory?

A: Dizziness has been reported as an adverse reaction in some clinical studies, which may impact focus and coordination. If dizziness is experienced while using the medicine, a healthcare professional should be consulted.

Q: What are the signs of an allergic reaction to Ygielle?

A: Signs of a serious hypersensitivity reaction may include the onset of a rash, hives, peeling or blistering of the skin, or swelling. Swelling that affects the face, throat, or tongue may cause difficulty breathing and requires immediate medical attention.

Q: Is it safe to operate heavy machinery while taking Ygielle?

A: Because some individuals have reported experiencing headache and dizziness as adverse reactions in clinical studies, caution should be used when operating heavy machinery, including driving a vehicle. Patients are cautioned to understand how the medicine affects them before engaging in these activities.

Q: Is it safe to use herbal supplements or vitamins with Ygielle?

A: The official patient labeling advises that drug interactions are possible and recommends informing a doctor about all prescription and nonprescription medications. This includes vitamins, nutritional supplements, and herbal products to prevent potential interactions.

Q: Are there specific foods that should be avoided while taking Ygielle?

A: The official label for this localized formulation does not specify any particular foods that must be avoided. However, regulatory guidance generally suggests discussing the use of alcohol or tobacco and any food-related interactions with a healthcare professional.

Q: Can alcohol be consumed while on Ygielle therapy?

A: There is no official regulatory contraindication for moderate alcohol consumption listed on the FDA label for Ygielle. However, consuming alcohol may potentially worsen common gastrointestinal side effects associated with the drug, such as nausea, vomiting, and diarrhea.

Q: What are the main types of drugs that interact negatively with Ygielle?

A: Regulatory documents describe a few key negative interactions. These include antagonism with the antibiotic Erythromycin, enhancement of the effects of Neuromuscular Blocking Agents, and increased risk of severe colitis when used with Antiperistaltic Agents.

Q: Does Ygielle interact with birth control pills?

A: Intravaginal formulations of Ygielle may interact with barrier forms of contraception. Official warnings advise that the cream and ovule bases may weaken latex or rubber products, including condoms and vaginal diaphragms, reducing their effectiveness as a contraceptive method. The labeling advises patients to use alternative contraceptive methods during treatment and for a period afterward.

Q: How long after stopping Ygielle is it safe to take known interacting medicines?

A: The active substance has an average elimination half-life of approximately three hours. Clearance is typically considered complete after 5 half-lives. However, specific guidance for resuming interacting medicines should be discussed with a healthcare professional.

Q: Can people with pre-existing heart conditions use Ygielle?

A: The official product warning section notes that use of Ygielle may require a period of cardiac monitoring (such as an electrocardiogram or ECG) at treatment initiation. This is due to a documented transient decrease in heart rate in some subjects.

Q: Is Ygielle suitable for children or adolescents?

A: Official dosing protocols and schedules are applicable to the pediatric population 12 years of age and older. Regulatory safety and effectiveness information for children under the age of 12 has not been established.

Q: Is Ygielle safe to use during pregnancy?

A: Official labeling for the intravaginal formulation specifies a 7-day course duration for use in pregnant patients during the second and third trimesters when indicated. Studies have not shown an increased risk of birth defects when clindamycin is used during this period.

Q: Can Ygielle be used while breastfeeding?

A: Clindamycin, the active drug, is known to be excreted into breast milk in small amounts. While minimal absorption from topical use is considered unlikely to cause infant side effects, systemic absorption could potentially cause gastrointestinal effects (like diarrhea or oral candidiasis) in a breastfed infant.

Q: Are there special considerations for older adults taking Ygielle?

A: The official regulatory summary states that clinical trials did not include a sufficient number of subjects aged 65 and over to determine if their response is different from younger patients. Consequently, there are no specific warnings or dosage adjustments outlined solely for the geriatric population.

Q: What official safety categories or risk classifications apply to Ygielle?

A: The official labeling includes a Boxed Warning, which is the most severe safety advisory issued by regulatory agencies. This warning specifically relates to the risk of acute hepatic (liver) failure.

Q: Can Ygielle be used by people with a history of liver problems?

A: Use of Ygielle is associated with a risk of acute liver injury and may be contraindicated (prohibited) in patients with certain pre-existing conditions or genetic deletions. Liver function must be closely monitored.

Q: Does Ygielle affect fertility in men or women?

A: Nonclinical toxicology studies performed on rats found no evidence of impaired fertility when treated with clindamycin. However, the information available from regulatory bodies regarding the effects on human fertility is limited.

Q: What is the general rate of clinical response reported in research for Ygielle?

A: Clinical studies report outcomes based on the indication being treated. For bacterial vaginosis, clinical cure rates typically range between 66% and 77%. For acne, studies report lesion count reductions after a 12-week period of application.

Q: What is the general guidance if a dose of Ygielle is missed?

A: General guidance for missed doses advises that official guidance typically suggests applying or inserting the dose as soon as it is remembered. However, if it is nearly time for the next scheduled dose, it is generally recommended to skip the missed dose and resume the regular schedule. Specific instructions should always be confirmed with a healthcare professional.

Q: Does Ygielle contain any common allergens like gluten or lactose?

A: The official labeling includes a detailed list of inactive ingredients in the Description section for each formulation. This list must be carefully consulted to confirm the presence of specific potential allergens such as gluten, lactose, or other excipients.

Q: Is there an official patient information leaflet (PIL) available for Ygielle?

A: Yes, regulatory requirements mandate that a Patient Information Leaflet (PIL) or Medication Guide must be provided to every patient when the prescription for Ygielle is dispensed.

Q: What medical history or conditions should be disclosed to a doctor before starting Ygielle?

A: Patients are required to disclose certain information due to known risks. This includes any history of hypersensitivity to clindamycin or lincomycin, a history of ulcerative colitis, regional enteritis, or previous antibiotic-associated diarrhea. Any pre-existing heart or liver conditions must also be disclosed.

Q: Are there different brand names for Ygielle?

A: Yes, the active ingredient in Ygielle, Clindamycin Phosphate, is marketed under multiple different brand names for both topical and intravaginal use. The official name and other recognized brand names are listed in regulatory drug databases.

Q: Is Ygielle available as a generic drug?

A: Yes, Clindamycin Phosphate has been available for a significant period of time, and generic versions of many of the topical and intravaginal formulations are available and widely distributed.

How should Ygielle be stored and disposed of?

How to Store and Dispose of Ygielle?

Official Storage Conditions

Ygielle must be stored at controlled room temperature, specifically between 20 C and 25 C (68 F and 77 F). Storage conditions require mandatory protection from light and excessive heat or moisture. The regulatory labeling strictly states that the product must not be frozen to maintain the stability of the formulation.

To preserve product quality, Ygielle must be kept in its original container and the cap or closure must be kept tightly closed. As with all medicines, the product must be stored out of the sight and reach of children.

Disposal Requirements

Unused or expired Ygielle must be disposed of according to local regulations and official pharmacy guidance. Regulatory documents specifically prohibit discarding the medicine by throwing it in general household waste or via wastewater systems, such as flushing it down the toilet.

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

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