Dalacine C

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Medically reviewed

Rosario Oropesa

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 Dalacine C

Quick Facts

Property Description
Active ingredient Clindamycin Phosphate
Form Capsule, Injection Solution, Topical Preparations (Gel/Lotion)
Pharmacological class Lincosamide antibiotic
General purpose To inhibit the growth and spread of susceptible bacteria
Origin Semisynthetic
Rx Status Prescription-only medicine (Rx)

What Type of Medicine is Dalacine C?

Dalacine C is a prescription-only pharmaceutical preparation whose primary active component is Clindamycin Phosphate, which formally places it within the Lincosamide antibiotic class of antibacterial agents. This medication is clinically recognized for its activity against a narrow spectrum of pathogens, specifically including susceptible anaerobic organisms and certain Gram-positive bacteria. Clindamycin is a semisynthetic derivative of the naturally occurring antibiotic Lincomycin, a modification that enhances its biological activity and intestinal absorption.

Composition and Available Forms of Clindamycin

The core chemical entity, Clindamycin, is prepared as the Clindamycin Phosphate salt in Dalacine C, which functions as a prodrug converted to the active compound within the body. The unique feature of this single active ingredient product is its wide range of pharmaceutical preparations, ensuring it is suitable for various route of administration methods. These forms include the solid oral capsule, the sterile solution for injection for systemic parenteral delivery (Intravenous or Intramuscular), and various specialized topical preparations such as gels or lotions.

General Purpose: How Dalacine C Helps the Body

The general therapeutic purpose of this preparation is to control and resolve severe bacterial infections by targeting and eliminating the causative pathogens. Clindamycin operates by functioning as a potent protein synthesis inhibitor, which fundamentally arrests the ability of bacteria to multiply. This specific bacteriostatic action effectively halts the proliferation of susceptible pathogens, which assists the patient's natural immune system in overcoming the established infection.

Regulatory References

  1. NIH StatPearls: Clindamycin

What side effects are possible with Dalacine C?

Possible side effects and safety information

The safety profile for Dalacine C (Clindamycin) details adverse reactions across various system-organ classes, with classification based on regulatory frequency categories.

Officially Documented Adverse Reactions

Adverse effects are categorized by frequency, as established in official regulatory documents:

Classification Examples of Reactions (SOC)
Common Gastrointestinal disturbances (including pseudomembranous colitis), maculopapular rash, abnormal liver function tests.
Uncommon Diarrhoea, nausea, vomiting, abdominal pain, urticaria, pain or abscess at injection site.
Not Known Severe cutaneous reactions (SJS, TEN, DRESS, AGEP), anaphylactic shock, acute kidney injury, blood disorders (agranulocytosis, neutropenia).

Serious Safety Concerns and Restrictions

The most serious safety concern documented in regulatory labeling is Clostridioides difficile-Associated Diarrhea (CDAD), or severe colitis, which may be fatal and can occur during therapy or up to two months after treatment cessation. Other severe warnings include life-threatening systemic reactions such as Anaphylactic Shock and serious cutaneous adverse reactions (SCARs). The risk of Cardio-Respiratory Arrest is associated with the rapid intravenous administration of the injection solution.

Contextual Safety Notes

Safety notes include constraints for patients with pre-existing conditions, particularly a history of colitis. Prolonged use of this medicine necessitates the periodic monitoring of liver function, kidney function, and blood counts. Specific consideration is given to vulnerable populations: elderly patients may experience a greater risk of adverse reactions related to diarrhoea, and the injectable solution may carry warnings related to excipients in neonates/infants.

Overdose and Emergency Response

Overdose and When to Seek Help

Official regulatory documentation addresses the specific manifestations of Dalacine C overexposure and the mandatory actions required in an emergency.

Documented Overdose Manifestations

Classification Official Regulatory Statement
Systemic Effects Overexposure, particularly through too rapid intravenous administration, has been associated with severe, life-threatening outcomes, including cardiopulmonary arrest and hypotension.
Gastrointestinal An increased incidence of gastrointestinal side effects is documented with the highest systemic dose levels.
Accumulation Risk The drug's elimination half-life is increased in elderly patients and those with markedly reduced renal or hepatic function, noting a potential for drug accumulation.

Required Emergency Actions

Immediate medical attention is required in cases of suspected overdose. Government guidance mandates the following:

  • Call Emergency Services (911/Equivalent): Contact must be made immediately if the individual exhibits severe, life-threatening signs, such as collapse, a seizure, trouble breathing, or if they cannot be awakened (NIH/MedlinePlus).
  • Call Poison Control: Contact with the Poison Control Helpline is required for all suspected overdosage events.

Supportive Management

No specific antidote is known for Dalacine C overdosage. Management is defined by supportive care. Officially, hemodialysis and peritoneal dialysis are ineffective procedures for removing the drug from the blood serum (FDA Label). For accidental contact of the topical solution with the eyes or mucous membranes, the required action is to bathe the affected area with copious amounts of cool water.

Therapeutic Uses of Dalacine C

Dalacine C (Clindamycin) is used in situations involving certain distressing symptoms linked to serious bacterial infections. The medication is approved for treating specific serious bacterial infections, providing support that helps ease the overall symptom burden associated with these conditions. The main conditions where this antibiotic is commonly used include severe lower respiratory tract infections, septicemia, infections of the skin and soft tissues (like cellulitis and abscesses), bone and joint infections, and certain gynecological and intra-abdominal infections.


Management of Severe and Localized Infections

This antibiotic is commonly used in conditions associated with acute or disruptive episodes, such as septicemia. The core benefit provided may assist in managing the infectious process, which supports the easing of symptoms related to systemic imbalance, such as fever and chills. It is also relevant in conditions involving inflammatory or irritative processes characterized by localized inflammation and pus formation. Its therapeutic value lies in reducing the intensity of symptoms related to physical discomfort, which contributes to easing physical discomfort and supports overall symptomatic management.


Therapeutic Use in Specific Scenarios

Dalacine C offers a targeted option for infections prevalent in the pelvic and abdominal regions, such as Pelvic Inflammatory Disease (PID) and specific gynecological infections. Crucially, it is commonly used as a relevant alternative for patients with confirmed hypersensitivity or allergy to penicillin. This use is applicable within clinical settings that involve acute or unstable symptom patterns, which may provide supportive relief when symptoms interfere with routine activities.


Quick Fact: Symptom Relief Focus
Symptom Category Symptoms related to inflammatory or irritative states
Primary Context Conditions presenting with systemic or localized discomfort
General Benefit Contributes to easing the overall symptom load

Eligibility and Restrictions for Use

Eligibility Profile: Official Regulatory Status

The eligibility profile for Dalacine C (Clindamycin) is defined by regulatory standards, establishing absolute restrictions and conditional use populations.

Eligibility scope
Populations for whom use is allowed (as stated in label): Adults; Pediatric Patients (generally ge 1 month of age); Geriatric Patients with normal hepatic and renal function.
Populations for whom use is not recommended (if applicable): Nursing mothers (due to risk of serious GI adverse effects in the infant, as per some regulators); Patients with nonbacterial infections (e.g., most upper respiratory tract infections).
Populations for whom use is contraindicated: Individuals with a history of hypersensitivity to Clindamycin or Lincomycin. Patients with rare hereditary metabolic disorders (e.g., specific carbohydrate malabsorption, for certain formulations).

Age-Related Eligibility Rules:

  • Pediatric Use: Approved for children ge 1 month. Specific dosing is established for neonates (le 1 month); however, specific formulations, such as capsules, are not suitable for young children unable to swallow them whole.
  • Geriatric Patients: Age alone generally does not require dose alteration if the patient maintains normal hepatic and renal function.

Condition-Specific Eligibility Rules:

  • Organ Impairment: Patients with severe hepatic or severe renal impairment are eligible, but use is restricted and requires specific monitoring of plasma concentrations and organ function.
  • Prior History: The drug is prescribed with caution in individuals with a history of colitis, regional enteritis, or other serious gastrointestinal diseases.
  • Prohibited Use: The medicine is prohibited for the treatment of Meningitis because it does not achieve therapeutically adequate concentrations in the cerebrospinal fluid.

This structure ensures the medicine is reserved for populations where use is supported by regulatory evidence and defined by strict non-eligibility criteria.

What should I know about interactions with other medicines?

Interaction Profile: Regulatory Summary

This section outlines interactions for Dalacine C (Clindamycin) as documented in official government regulatory sources.

Interaction Type Interacting Substance/Class Official Regulatory Statement
Contraindicated/Restricted Erythromycin and related antibacterials Restricted due to in vitro antagonism.
Drugs Inhibiting Peristalsis Prohibited if antibiotic-associated colitis is suspected or confirmed.
Pharmacokinetic Strong CYP3A4 Inducers (e.g., Rifampicin) Increase clindamycin clearance, potentially reducing systemic exposure.
Strong CYP3A4 Inhibitors May reduce clindamycin clearance, potentially increasing systemic exposure.
Pharmacodynamic Neuromuscular Blocking Agents (NMBAs) Clindamycin's inherent properties may enhance the NMBAs' action.
Vitamin K Antagonists (e.g., Warfarin) Associated with increased coagulation tests (PT/INR) and/or bleeding events.

Administration and Monitoring Constraints

The co-administration of Oral Typhoid Vaccine must be separated by at least three days before and after clindamycin administration to prevent potential vaccine inactivation. Due to altered clearance, monitoring of clindamycin plasma concentrations is required in the context of severe hepatic impairment. Monitoring of renal function should also be considered in patients with pre-existing renal dysfunction or those receiving concomitant nephrotoxic drugs. This profile defines the mandatory restrictions and monitoring requirements established by regulatory authorities.

Mechanism of Action

Molecular Blockade of Bacterial Protein Synthesis

The mechanism of Clindamycin (converted in vivo from the prodrug Clindamycin Phosphate) involves the inhibition of protein synthesis within susceptible bacteria. This action is achieved by the molecule binding directly to the 23S ribosomal RNA (23S rRNA) component of the bacterial 50S ribosomal subunit. This molecular block interferes with the formation of peptide bonds at the peptidyl transferase center and disrupts ribosomal translocation. This cascade arrests the creation of essential proteins needed for growth and cell division, resulting in a bacteriostatic effect that restricts the proliferation of the pathogen population.


Modulation of Bacterial Toxin Production

Clindamycin also possesses a secondary mechanistic domain: the ability to influence gene expression responsible for the production of specific virulence factors or toxins by certain Gram-positive bacteria. This mechanism involves the molecule influencing the transcriptional and translational machinery to suppress the synthesis of specific bacterial exoproteins.


️ Mechanistic Constraints and Pathway Limitations

The mechanism's efficacy is constrained by limits in molecular access and the potential for target site alteration. Clindamycin demonstrates poor penetration across the blood-brain barrier, which functionally limits its action in the central nervous system. Furthermore, the mechanism becomes functionally irrelevant if the target bacteria acquire resistance, most commonly through methylation of the 23S rRNA binding site.

Dosage and Administration Information

Official Administration Guidelines

Dalacine C (Clindamycin) is administered via multiple routes as defined by regulatory labeling, depending on the severity and location of the infection. The primary systemic routes are oral, intravenous (IV) infusion, and intramuscular (IM) injection.


Dosing and Frequency

Administration Route Standard Adult Dosing (Typical Range) Frequency Key Restrictions
Oral Capsules 150 mg to 450 mg per dose Every 6 hours Must be taken whole with water
Parenteral (IV/IM) 600 mg/day to 2700 mg/day Divided into 2, 3, or 4 equal doses Max single IM dose is 600 mg

For more severe infections, total daily doses up to 4800 mg via IV infusion have been successfully used in adults. In pediatric patients (over one month of age), dosing is calculated based on total body weight (8-40 mg/kg/day range), divided into three or four equal administrations daily. Treatment for infections caused by beta-hemolytic streptococci must be continued for a minimum of 10 days.


Preparation and Special Conditions

  • Oral Intake: Capsules must be swallowed whole with a full glass of water to prevent esophageal irritation. Patients should remain upright for at least 30 minutes after taking the dose. Food does not significantly alter the absorption of the oral capsule.
  • IV Administration: The solution must be diluted prior to infusion. The concentration should not exceed 18 mg/mL, and the infusion rate must not exceed 30 mg/minute.

Recent Clinical Evidence

Recent Clinical Evidence Overview

Mechanistic Studies

Research has explored the action of clindamycin, a lincosamide antibiotic, on bacterial processes. Studies suggest the compound works by binding to the 50S ribosomal subunit of susceptible bacteria, which inhibits protein synthesis and contributes to its bacteriostatic activity.


Efficacy and Study Design

Clindamycin has been investigated in trials for a wide range of serious infections caused by susceptible anaerobic bacteria, as well as susceptible aerobic Gram-positive organisms (e.g., Staphylococci and Streptococci).

  • Targeted Conditions: The compound has been studied in infections of the lower respiratory tract, skin and soft tissue, bone and joint, and the female pelvis.
  • Comparative Use: Research frequently supports its use as an alternative agent for individuals with known penicillin allergies or when the causative organism is resistant to other appropriate treatments. Trials have also evaluated its efficacy in specific infections, such as cervicitis caused by Chlamydia trachomatis.

Safety and Combination Findings

Clinical data confirms that clindamycin therapy is associated with a risk of Clostridioides difficile-associated diarrhea (CDAD), which may range from mild to severe colitis. This risk has been highlighted in regulatory warnings and is a key monitoring point in all patient populations.

Combination regimens involving clindamycin and other agents (e.g., primaquine or quinine) have been researched as alternative therapeutic options for conditions like multi-drug resistant malaria or Pneumocystis jiroveci pneumonia in certain patient groups.

Key Studies & References

  1. Clindamycin - Infectious Diseases - MSD Manual Professional Edition
  2. Pneumocystis Pneumonia: Adult and Adolescent OIs (NIH - Clinical Info.HIV.gov Guideline)
  3. Adult Skin and Soft tissue Infection Treatment guideline - Carilion Clinic

Frequently Asked Questions (FAQ)

Common questions about Dalacine C (FAQ)


Q: Is Dalacine C the same kind of medicine as penicillin?

Official documents classify Dalacine C as a Lincosamide antibiotic, which is a different class of medicine from penicillins. It operates through a distinct molecular pathway to stop bacterial growth. According to official product information, Dalacine C is sometimes reserved for use in patients who have a known allergy to penicillin.


Q: What is Dalacine C primarily used to treat?

Dalacine C is indicated for the treatment of serious infections caused by specific susceptible strains of bacteria, including anaerobic bacteria and certain aerobic Gram-positive bacteria. These infections include those affecting the lower respiratory tract, skin and soft tissues, bones and joints, and the female pelvis. Its use is determined by the type of bacteria causing the infection.


Q: Can children be prescribed Dalacine C?

Yes, Dalacine C is approved for use in pediatric patients one month of age and older. The specific dosage is calculated based on the child's body weight. However, regulatory documents note that the capsule form may not be suitable for young children who are unable to swallow it whole.


Q: What makes Dalacine C different from other common antibiotics used for similar infections?

Dalacine C belongs to the Lincosamide class, which has a distinct mechanism of action, working by inhibiting bacterial protein synthesis. Its use is often supported for infections caused by anaerobic bacteria or for patients who cannot use other common treatments, such as penicillin.


Q: Does Dalacine C typically cause issues with the stomach or digestion?

Gastrointestinal disturbances, including abdominal pain, nausea, and vomiting, are listed in official documents as common adverse reactions. Furthermore, official product information carries a serious warning about the risk of Clostridioides difficile-associated diarrhea (CDAD), which is a form of colitis that can range from mild to severe.


Q: Does Dalacine C interact with birth control pills?

The full list of interactions provided in official regulatory drug documents does not explicitly list a formal interaction with oral contraceptives (birth control pills). This statement is based solely on the descriptive information found in the official product label.


Q: Is it typical to finish the entire course of Dalacine C, even if I feel better?

Official documents specify that treatment for infections caused by beta-hemolytic streptococci must be continued for a minimum of 10 days to ensure complete eradication. The duration of therapy, as determined by the prescriber, is considered necessary to reduce the risk of incomplete treatment and potential bacterial resistance.


Q: What happens if I accidentally take more Dalacine C than directed?

The OVERDOSAGE section of the official prescribing information describes that clindamycin is not effectively removed from the serum by hemodialysis or peritoneal dialysis. This situation requires immediate medical evaluation and attention.


Q: How quickly should I expect to see an effect from Dalacine C?

According to official pharmacokinetic information, clindamycin is rapidly absorbed after oral administration, with an average peak concentration in the blood typically reached within 45 to 60 minutes. The onset of clinical benefit is related to various patient factors and the specific infection being addressed.


Q: Is Dalacine C generally considered safe for older people?

Pharmacokinetic studies indicate that age alone does not typically require a change in dose if kidney and liver function remain normal. However, official documents note that elderly patients with associated severe illness may have a greater risk of developing adverse reactions from diarrhea, including the serious risk of CDAD.


Q: Is it okay to use Dalacine C if I have kidney problems?

Official documents state that dosage schedules generally do not need to be modified for patients with renal disease. However, monitoring of renal function is advised in official documents for patients with pre-existing renal dysfunction, as acute kidney injury is a reported adverse reaction.


Q: How long after starting Dalacine C does it leave the body?

The average biological half-life of clindamycin in the serum is approximately 2.4 hours in younger adults. This is the amount of time it takes for half of the drug to be eliminated from the body. The elimination half-life may be slightly increased in older adults.


Q: Can Dalacine C affect the results of any medical lab tests?

Official safety information includes reports of abnormal liver function tests and transient changes in blood counts, such as neutropenia and eosinophilia. Due to these reported effects, monitoring of liver function, kidney function, and blood counts is advised in official documents during prolonged periods of therapy.


Q: Does Dalacine C contain any known allergens besides the active ingredient?

Yes, official product information lists the inactive ingredients, known as excipients, in the formulation, such as lactose monohydrate or benzyl alcohol. Regulatory documents state that the medicine is contraindicated for individuals with a known hypersensitivity to any component of the formulation.


Q: Does Dalacine C work against Staph infections?

Yes, official documents state that Dalacine C is indicated for the treatment of serious infections caused by susceptible strains of aerobic Gram-positive bacteria, which specifically includes Staphylococci (Staph infections).


Q: Can Dalacine C cause changes to a person's sense of taste?

Official safety information lists a metallic taste in the mouth as one of the reported adverse reactions associated with Dalacine C.


Q: Is Dalacine C available as an injection or just as a pill?

The medication is available in multiple pharmaceutical forms for different administration routes. These include oral capsules, a sterile solution for injection (for intravenous or intramuscular administration), and various topical preparations, such as gels or lotions.


Q: Does Dalacine C require special storage instructions?

Official guidelines specify that the oral capsules and injection should be stored at controlled room temperature (20^circ to 25^circC). Regulatory conditions require that the injection solution is not refrigerated. All forms must be kept out of the sight and reach of children.


Q: Is the medication Dalacine C used worldwide?

Dalacine C, containing the active ingredient clindamycin, is a pharmaceutical product marketed in many countries and regions globally. Its use and specific regulations are governed by local regulatory authorities, such as the FDA in the United States and the EMA in Europe.


Q: Why is it important to know if I'm taking other medicines with Dalacine C?

Official documents highlight the importance of reviewing all current medications due to potential drug interactions. These include documented cases where Dalacine C may enhance the action of muscle relaxants or is associated with altered blood clotting test results when taken with Warfarin.


Q: Can Dalacine C be used for dental procedures or infections?

The official list of therapeutic indications for Dalacine C includes the treatment of dental infections, specifically naming conditions such as periodontal abscess and periodontitis, when caused by susceptible organisms.


Q: How does the official literature describe the benefits of Dalacine C?

Official literature describes the benefits of Dalacine C in terms of its ability to resolve serious infections caused by susceptible anaerobic and aerobic Gram-positive bacteria. It is noted as a targeted treatment or alternative therapy when other antibiotics may not be suitable or tolerated by the patient.


Q: How is the safety profile of Dalacine C generally described?

The official safety profile is characterized by warnings about the risk of severe colitis and the potential for severe hypersensitivity reactions, like anaphylactic shock. Common side effects often involve gastrointestinal adverse reactions.

How should Dalacine C be stored and disposed of?

Storage and Disposal Requirements for Dalacin C

Official regulatory guidelines strictly define the conditions for storing and disposing of Dalacin C (Clindamycin) products to maintain stability and prevent hazards.

Storage Conditions

Product Form Required Temperature Prohibited Conditions
Capsules & Injection Controlled Room Temperature (20 to 25 C) Do Not Refrigerate (Injection)
Topical Solutions Store below 25 C Protect from Light and Heat

The medication must be stored in its original container, and the injection solution must not be refrigerated. Single-dose containers require that any unused portion be discarded after initial entry. All forms must be kept out of the sight and reach of children.

Disposal

Expired or unused Dalacin C should be returned to a pharmacist or a designated drug take-back program for proper pharmaceutical waste disposal. Medicines must not be thrown in household trash or flushed down the toilet.

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

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