Overview of Diatrim 24

The following overview provides a concise, factually grounded explanation of the medicinal entity Diatrim 24, strictly adhering to the scope of definition, type, and composition.

Property	Description
Active ingredient	Sulphamethoxazole and Trimethoprim
Form	Tablet, Oral Suspension, Solution for Injection
Pharmacological class	Systemic Antibacterial (Antifolate Combination)
Common use	Treatment of bacterial infections
Origin	Synthetic

Diatrim 24 is a systemic antibacterial medication defined as a fixed-dose combination product chemically equivalent to Co-trimoxazole, which is recognized globally for its efficacy against susceptible pathogens. This pairing provides a reliable, potent method for addressing systemic microbial issues, utilizing its dual-action capability.

What Type of Medicine is Diatrim 24?

Diatrim 24 is a synthetic antibiotic that belongs to the pharmacological class of antifolate combinations, which means it works by interfering with vital metabolic processes bacteria need to grow. The combination of Sulphamethoxazole and Trimethoprim is widely known by several popular trade names, and is clinically recognized for its reliable action against a wide range of susceptible microorganisms. The medication is available in multiple dosage form(s), including tablets for oral administration and a solution for injection for parenteral delivery. This fixed-dose combination is designed to offer an advantage over single agents due to its enhanced bactericidal activity.

Understanding the Key Components: Sulphamethoxazole and Trimethoprim

The efficacy of Diatrim 24 stems from its two primary chemical substances: the sulfonamide compound Sulphamethoxazole and the dihydrofolate reductase inhibitor Trimethoprim. This pairing is essential because the two agents work in synergy, where the sequential blockade of bacterial folate synthesis leads to a direct bactericidal effect, a property that is highly valued in antimicrobial therapy. This dual-action mechanism of effect allows the medicine to achieve the efficient elimination of bacteria by blocking the production of necessary compounds for DNA synthesis, ensuring a robust outcome in combating bacterial infections. This unique mechanism makes the combination a preferred option for treating specific types of systemic infections where dual targeting is beneficial.

Regulatory References

NIH MedlinePlus

What side effects are possible with Diatrim 24?

Possible Side Effects and Safety Information

The safety profile for Diatrim 24 (Sulphamethoxazole and Trimethoprim) is officially documented by regulatory authorities, classifying potential adverse reactions by both frequency and affected physiological system.

Frequency-Classified Adverse Reactions

The official classification of side effects lists hyperkalemia (increased potassium levels in the blood) as a Very Common reaction. Reactions classified as Common typically include issues such as nausea, diarrhea, skin rash, and headache. Less frequent, but officially documented, effects are also categorized across several system-organ classes.

System-Organ Class Involvement

Adverse effects are grouped according to the body system affected, with documented reports across the Blood and lymphatic system, potentially leading to severe blood disorders (dyscrasias); the Skin and subcutaneous tissue, including a risk of photosensitivity; the Gastrointestinal disorders system; and the Renal and urinary disorders system, where acute impairment has been reported.

Serious Adverse Reactions and Safety Constraints

The official labeling notes the possibility of rare but clinically significant adverse reactions. These include severe cutaneous adverse reactions (SCARs) such as Stevens-Johnson Syndrome (SJS) and Toxic Epidermal Necrolysis (TEN), as well as severe blood dyscrasias. Official safety restrictions indicate the medicine is contraindicated in individuals with known hypersensitivity to the components, severe hepatic damage, or severe renal insufficiency. Furthermore, older adults may be at increased risk for serious blood and skin reactions.

Overdose and Emergency Response

Overdose and When to Seek Help

Overdose involving Diatrim 24 (Sulphamethoxazole and Trimethoprim) is associated with formally documented clinical manifestations across several body systems. In the event of suspected overdose, it is mandated that patients seek immediate medical attention or contact emergency services immediately, as severe or life-threatening outcomes may occur.

Documented Manifestations and Severe Outcomes

Acute signs of overdose commonly documented in regulatory labeling include nausea, vomiting, diarrhea, somnolence (drowsiness), and headache. Overdose may also lead to physiological signs such as crystalluria and hematuria.

High-level regulatory documents emphasize the potential for severe outcomes, including renal failure due to crystal formation and bone marrow depression, which can lead to serious conditions like megaloblastic anemia and other blood dyscrasias. Elderly patients and individuals with renal impairment are noted as having increased susceptibility to severe manifestations.

Officially Described Management

There is no specific antidote documented for the sulphamethoxazole component. However, the regulatory documentation describes specific management procedures, including the use of Leucovorin (folinic acid) to counteract the hematologic effects of trimethoprim. Other management steps include limiting absorption via gastric lavage or activated charcoal, maintaining high fluid intake, and providing symptomatic and supportive treatment. Hospital monitoring is required to assess blood counts, electrolyte levels, and renal function.

Therapeutic Uses of Diatrim 24

What Diatrim 24 Treats: Main Uses and Benefits

Diatrim 24 (Co-trimoxazole) is commonly used to help manage a variety of acute or episodic changes. The medication is primarily applied in conditions characterized by periods of heightened symptoms in several key areas.

The therapeutic scope includes managing conditions marked by increased physiological stress in the urinary system (like pyelonephritis and cystitis), and is applied in addressing conditions associated with acute or disruptive episodes such as Pneumocystis jirovecii pneumonia (PJP) in high-risk patients. It is also relevant for easing symptoms of acute gastrointestinal distress such as traveler’s diarrhea and shigellosis, and is relevant for easing symptoms related to physical discomfort during acute flare-ups of chronic bronchitis. This use provides support that helps ease the overall symptom burden associated with physical discomfort and functional strain.

Quick Fact: Supportive Management for Urinary Symptoms

Diatrim 24 is applied when symptoms related to inflammatory or irritative states in the urinary tract intensify, providing supportive relief for painful or frequent urination.

Eligibility and Restrictions for Use

Eligibility Map: Who Can and Cannot Use Diatrim 24

Diatrim 24 (Sulphamethoxazole/Trimethoprim) eligibility is strictly defined by official regulatory documentation, focusing on patient characteristics and pre-existing conditions.

Populations for Whom Use is Allowed:

Age: Approved for use in children 2 months of age and older, and in adults and adolescents over 12 years.

Contraindicated Populations (Must Not Use):

Age/Physiological State: Infants less than 2 months of age; pregnant patients and nursing mothers are contraindicated due to risk to the infant.
Conditions: Patients with a known hypersensitivity to sulfonamides, severe hepatic damage, megaloblastic anemia due to folate deficiency, a history of drug-induced immune thrombocytopenia, or acute porphyrias.

Populations Requiring Conditional Use:

Renal Function: Use is not recommended in patients with severe renal impairment (CrCl le 15 mL/min) and is contraindicated if kidney function cannot be monitored. Patients with moderate renal impairment require a dose reduction.
Other Conditions: Elderly patients and those with Glucose-6-phosphate dehydrogenase (G6PD) deficiency must use the medicine with caution. The medicine must not be used for treating Group A beta-hemolytic streptococcal pharyngitis.

What should I know about interactions with other medicines?

Diatrim 24 (Sulphamethoxazole and Trimethoprim) has specific documented interaction patterns that affect the plasma exposure and activity of co-administered medicines, as detailed in regulatory documents.

Co-administration with Dofetilide is formally contraindicated because the Trimethoprim component inhibits the renal cationic transport system. This inhibition raises Dofetilide plasma concentrations, leading to an increased risk of QTc prolongation. Concomitant use with Methotrexate is also contraindicated due to a high risk of severe haematological toxicity resulting from a pronounced antifolate synergistic effect.

Sulphamethoxazole inhibits the metabolism of Phenytoin and Warfarin, a pharmacokinetic interaction that elevates the plasma levels of these drugs and enhances their effects. Trimethoprim additionally inhibits the renal tubular secretion of medicines like Digoxin, Procainamide, and Amantadine, resulting in increased plasma exposure. Rifampicin is noted to shorten the half-life of Trimethoprim, which may reduce its systemic concentration.

Pharmacodynamic interactions include an additive hyperkalaemic effect when co-administered with ACE inhibitors or potassium-sparing diuretics. This risk is specifically noted as higher in elderly patients. Furthermore, individuals with impaired renal function exhibit an increase in the half-lives of both components, heightening the risk of all exposure-altering interactions. The absorption of the active components is not significantly affected by food.

Mechanism of Action

️ How Diatrim 24 Works: Sequential Metabolic Blockade

Inhibition of Two Sequential Enzymes

This mechanism centers on the simultaneous inhibition of two essential bacterial enzymes, Dihydropteroate Synthase (DHPS) and Dihydrofolate Reductase (DHFR), by Sulphamethoxazole and Trimethoprim, respectively. This dual-target action is selective, focusing exclusively on the microbial process of de novo folate synthesis, a pathway absent in human cells.

Cascade to Cellular Arrest

The sequential blockade creates a profound disruption in the bacterial folic acid pathway, leading to a severe depletion of the essential coenzyme, Tetrahydrofolate (THF). This shortage immediately halts the subsequent production of purines and pyrimidines (DNA/RNA building blocks), arresting the metabolic activity required for cellular replication. .

Synergy and Mechanistic Constraints

The combination provides synergy, where the upstream and downstream blockades mutually potentiate the overall effect, resulting in direct bactericidal activity (elimination of the microbial population) rather than just growth suppression. This action is constrained by bacterial adaptive changes, such as the expression of a mutated DHFR enzyme or the overproduction of the natural substrate, which can reduce the drug's final physiological effect.

Dosage and Administration Information

How to Use Diatrim 24

This section outlines the general administration principles and dosing patterns for Diatrim 24 (Co-trimoxazole). It does not constitute medical advice or substitute for specific instructions from a healthcare provider.

Administration Routes and Dosing

Diatrim 24 is approved for administration by two primary routes: oral (using tablets or suspension) and intravenous (IV) infusion (using the solution for injection). The solution for injection is strictly for IV use and must not be given by intramuscular (IM) injection. Dosing is dependent on the specific infection being treated and the patient population.

Feature	Usage Principle
Standard Frequency	Typically twice daily (q12h) for common acute infections, or three to four times daily for severe systemic infections (e.g., Pneumocystis Jirovecii Pneumonia - PJP).
Course Duration	Ranges from 3 to 5 days for short courses (e.g., traveler's diarrhea) up to 14 to 21 days for extended courses (e.g., PJP treatment).

Preparation and Procedural Requirements

Proper use involves adherence to specific preparation and procedural conditions. Oral forms are taken with a full glass of water to ensure adequate fluid intake.

The intravenous solution is diluted prior to use. Once diluted, it is administered slowly by IV infusion over a period of 60 to 90 minutes; rapid injection or bolus administration is avoided.

Population-Specific Adjustments

Dosing is adjusted for specific patient groups. Dosing is reduced by 50% in adults with moderate renal impairment (Creatinine Clearance between 15 and 30 mL/min). The medication is contraindicated in infants under two months of age. For pediatric patients (aged 2 months and older), dosing is calculated based on body weight.

Recent Clinical Evidence

Diatrim 24: Recent Clinical Evidence

This section summarizes the key research that examined how the drug was studied to influence biological pathways and evaluated its association with pain and inflammation measures. All findings presented are descriptive of the studies conducted and do not constitute medical advice or a recommendation regarding treatment.

Overview of Clinical Trials

Studies have reported the drug's tolerability in most adult patients. Research has investigated this drug's characteristics within research settings for chronic pain.

Study 1: Efficacy in Chronic Inflammation

The primary research for this drug included a randomized, controlled trial involving 450 adult participants with chronic inflammatory conditions.

The study evaluated whether consistent administration was associated with changes in inflammation biomarkers and patient-reported pain scores over a 12-week period.
One key finding from the research is that the study design examined consistent administration.
Side effects reported included temporary gastrointestinal discomfort and headache, and were described by the research as manageable.

Study 2: Biological Pathway Research

Further research was conducted to understand the biological pathway influenced by the drug.

The drug formulation was part of research investigating influence on key inflammatory pathways.
In laboratory models, research examined changes in a pro-inflammatory cytokine.

Combined Use Research

Some later-stage research has explored the association of combining this drug with an established muscle relaxant therapy.

Study 3: Combination Therapy Outcomes

A separate, small open-label trial involved 150 patients.

Studies evaluated whether this combination was associated with measures of patient mobility and reported stiffness.
Research examined the highest studied dose in people experiencing high levels of pain.
The study protocol detailed monitoring for signs of increased sedation with the combined therapy.

Frequently Asked Questions (FAQ)

Common questions about Diatrim 24 (FAQ)

Q: Is Diatrim 24 the same as the drug I took years ago?

A: Diatrim 24 is a brand name for the generic combination drug known as Co-trimoxazole, which contains Sulphamethoxazole and Trimethoprim. This combination has been used globally as an antibacterial treatment for a long time, so official sources note that it is the same active medicine you may have previously encountered.

Q: Why are people with certain pre-existing conditions advised not to use Diatrim 24?

A: Official documents describe specific health conditions, such as severe liver or kidney damage and certain blood disorders, where this medication is contraindicated (must not be used). These restrictions are put in place because these conditions may increase the risk of serious side effects or could prevent the body from properly processing the drug.

Q: How long is Diatrim 24 typically used for?

A: According to official administration instructions, the duration of use is highly variable and depends on the specific infection being treated. Courses can be as short as a few days for certain acute infections, or they may be extended up to two to three weeks for more complex or severe conditions.

Q: Does Diatrim 24 affect laboratory blood tests?

A: Regulatory information indicates that treatment with Diatrim 24 may interfere with or alter the results of certain laboratory tests. This specifically includes potential changes to tests that measure creatinine (for kidney function) and certain blood glucose tests. Monitoring of these parameters is typically discussed and managed by the prescribing healthcare provider.

Q: Does Diatrim 24 affect fertility?

A: While the medicine is contraindicated during pregnancy, regulatory documents do not state a definitive impact on human fertility. Studies conducted in animals have examined potential effects on male fertility, but the relevance of those findings to human use is not certain.

Q: Does Diatrim 24 require a prescription from a doctor?

A: Yes. This medicine is formally classified in regulatory documents as a Prescription Only Medicine (POM). This indicates that it can only be obtained with a valid prescription from an authorized healthcare professional.

Q: Is it common to feel tired while taking Diatrim 24?

A: Official safety documents list symptoms like fatigue (tiredness) and general weakness as reported side effects. While not always classified as a 'very common' effect, these effects have been reported by patients during clinical use.

Q: Do I need to avoid certain foods or drinks while using Diatrim 24?

A: Official information confirms that the absorption of the active components is not significantly affected by food, and no specific foods are listed as strictly forbidden. Official administration instructions mention taking oral forms with a full glass of water.

Q: Can Diatrim 24 be taken with common over-the-counter pain relievers?

A: While regulatory documents detail interactions with many prescription drugs, they do not specifically list common OTC pain relievers (like ibuprofen or acetaminophen). However, caution is noted with any medicine that affects potassium levels or blood-clotting factors, which may include certain OTC products.

Q: Is it safe to drive or operate machinery while taking Diatrim 24?

A: Official documents note that the medicine may cause adverse reactions such as dizziness, convulsions, or vertigo in some patients. Regulatory information advises individuals to be aware of how the medicine affects them before engaging in activities that require concentration and quick reactions.

Q: Are there any known issues with Diatrim 24 use during pregnancy?

A: The medicine is generally contraindicated for use during pregnancy and while breastfeeding. The official reason is that the Trimethoprim component acts as an antifolate, which may pose a potential risk by interfering with the body's natural folic acid processes, particularly early in pregnancy.

Q: What happens if I stop taking Diatrim 24 suddenly?

A: Official prescribing information advises that the full course of treatment should be completed. Discontinuation of therapy before the prescribed duration is associated with the risk of infection reoccurrence and development of bacterial resistance.

Q: Does taking Diatrim 24 at a specific time of day matter?

A: Official dosing instructions for common regimens specify a frequency, such as twice daily (q12h). This indicates that consistently maintaining the correct time interval between doses (such as 12 hours) is the key requirement. The goal is to maintain the specified time interval between doses.

Q: Has Diatrim 24 been studied in children or adolescents?

A: Yes, regulatory documents confirm that studies have been conducted to support the drug's use in children two months of age and older. The official dosing instructions for this population are generally calculated based on the child’s body weight.

Q: How does the extended-release formula of Diatrim 24 work?

A: Extended-release formulas are drug delivery systems designed to slowly release the active ingredients into the body over a longer period. This controlled process is intended to provide a steady therapeutic effect for 24 hours, which often allows for less frequent dosing.

Q: What should I do if a side effect seems concerning but not severe?

A: Regulatory guidance suggests that communicating with a healthcare provider or pharmacist allows for the assessment of any concerning or persistent symptoms experienced while using the medicine.

Q: What official warnings are associated with Diatrim 24?

A: Official documentation contains prominent warnings regarding the possibility of severe adverse reactions. These include the risk of life-threatening skin reactions (such as Stevens-Johnson Syndrome) and serious blood disorders (dyscrasias). Warnings also highlight the potential for high potassium levels (hyperkalemia).

Q: Can Diatrim 24 make my skin more sensitive to the sun?

A: Yes. Photosensitivity, which is an increased sensitivity of the skin to sunlight, is explicitly listed in official product information as a potential adverse reaction of the skin and subcutaneous tissue system.

Q: What if I have kidney or liver problems? Can I still take Diatrim 24?

A: The medicine is strictly contraindicated in individuals with severe liver or kidney damage. For people with moderate kidney impairment, a reduction in dosage is officially required, and close monitoring by a healthcare professional is typically indicated.

Q: Is Diatrim 24 available in generic form?

A: Yes, the medicine is a combination of two generic drugs, Sulphamethoxazole and Trimethoprim. It is widely available under its generic name, Co-trimoxazole, from various manufacturers.

Q: Does Diatrim 24 contain lactose or gluten?

A: Regulatory documents list all inactive ingredients (excipients) for specific formulations. Some tablet or suspension forms of Diatrim 24 may contain excipients like lactose, but this can vary depending on the exact product and manufacturer.

Q: Can I take Diatrim 24 if I have high blood pressure?

A: High blood pressure itself is not listed as a contraindication. However, official information notes a documented interaction with certain high blood pressure medications, particularly ACE inhibitors, which can increase the risk of high potassium levels (hyperkalemia).

Q: How is the research evidence for Diatrim 24 summarized in official documents?

A: In regulatory documents, the clinical evidence is summarized by presenting the design and primary outcomes of the pivotal clinical trials. This evidence is used to support the drug's effectiveness and safety for the specific medical uses for which it was approved.

Q: What is the difference between a common side effect and a serious one for Diatrim 24?

A: Official labeling classifies common side effects as those reported by a higher percentage of patients, such as nausea or headache. Serious side effects are rare but are considered clinically significant and potentially life-threatening, such as severe blood disorders or skin reactions (SJS/TEN), which are listed under Warnings.

Q: Does Diatrim 24 affect sleep patterns?

A: Official prescribing information includes 'insomnia' (difficulty sleeping) as a reported side effect, although it is not typically listed among the most common adverse reactions.

Q: Is Diatrim 24 appropriate for people with diabetes?

A: The official label advises that the medicine should be used with caution in individuals with diabetes. There is a potential risk of hypoglycemia (low blood sugar), and the potential risk of hypoglycemia is typically managed by a healthcare provider.

How should Diatrim 24 be stored and disposed of?

Storage and Disposal Requirements for Diatrim 24

The storage and disposal of Diatrim 24 must strictly adhere to the conditions mandated in the official regulatory product labeling.

Storage Conditions

Storage Rule	Requirement as Stated in Labeling
Child Safety	Keep out of the sight and reach of children.
Unopened Stability	Shelf life as packaged for sale is 3 years.
Post-Opening Stability	Shelf life after first opening (broaching) is 28 days (for injection).
Refrigeration	Do not store in a refrigerator after broaching (for injection).
Container Integrity	The injection vial closures must not be punctured more than 40 times.

Disposal Instructions

Official instructions mandate that any unused product or waste materials derived from its use must be disposed of in accordance with local requirements. The product should not be disposed of via wastewater or household waste to prevent environmental impact. Medicines may be taken to community drug take-back programs.

Diatrim 24