Dabao

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Dabao

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 Dabao

Quick Facts: Dabao (Tinidazole)

Property Description
Active Ingredient Tinidazole
Form Oral Solid (Tablet), Oral Liquid (Suspension)
Pharmacological Class Nitroimidazole Antimicrobial
General Purpose To eliminate specific protozoa and anaerobic bacteria
Origin Synthetic Chemical Derivative

What Type of Medicine is Dabao (Tinidazole)?

Dabao is a trade name for a medicine containing the active substance Tinidazole, which is classified as a synthetic chemical derivative belonging to the nitroimidazole antimicrobial class. This compound is primarily recognized for its dual action as both an antiprotozoal and an antibacterial compound. This compound is used for its efficacy against susceptible microorganisms. Tinidazole is recognized as an essential antiprotozoal drug, indicating its fundamental role in standard therapeutic protocols.


Active Ingredient and Available Forms

The medicine is a single-active ingredient product where Tinidazole is the sole therapeutically active compound. It is designated for the oral route of administration and is supplied in two main pharmaceutical forms: an oral solid preparation, typically a film-coated tablet, and an oral liquid preparation, such as a suspension. The availability in a liquid suspension is a specific feature that makes it adaptable for use in patient populations, such as children over three years of age, or those with difficulty swallowing tablets, widening its applicability beyond typical adult oral formulations.


General Purpose and Mechanism Summary

The general purpose of the medicine is to resolve infections caused by susceptible pathogens, including specific protozoa and bacteria that thrive without oxygen. For instance, Tinidazole is commonly used when a patient presents with a protozoal infection, which is a key therapeutic focus. Tinidazole acts as a prodrug that generates highly active compounds upon chemical reduction inside the microbial cell. This action results in the disruption of the organism’s DNA structure, preventing its reproduction and leading to its clearance from the body. This mechanism ensures that the drug is precisely targeting the infectious agent.

Regulatory References

  1. Tinidazole on WHO Model List of Essential Medicines

What side effects are possible with Dabao?

Dabrafenib (Dabao) is associated with an official safety profile categorized by the body system affected, the frequency of occurrence, and the clinical significance of the events.

Adverse Reactions by Frequency

Very Common reactions (occurring in 1/10 patients) documented in regulatory sources include pyrexia (fever), headache, arthralgia (joint pain), hyperkeratosis, and palmar-plantar erythrodysesthesia syndrome.

Serious and Clinically Significant Risks

Official regulatory documents highlight several major safety concerns that may occur:

  • New Primary Malignancies: The development of cutaneous squamous cell carcinoma (cuSCC), basal cell carcinoma, and new primary melanoma have been observed. Non-cutaneous malignancies may also occur.
  • Serious Febrile Reactions: Fever, often complicated by chills, dehydration, hypotension (low blood pressure), or renal failure, is a notable risk, particularly in combination therapy.
  • Hemorrhage: Major bleeding events have been reported.
  • Cardiomyopathy: A decrease in the Left Ventricular Ejection Fraction (LVEF), indicating heart function problems, has been observed.
  • Ocular Toxicities: These include uveitis (inflammation inside the eye).
  • Serious Skin Toxicities: This encompasses severe reactions like Severe Cutaneous Adverse Reactions (SCARs).

Safety Monitoring and Limitations

Safety oversight requires periodic monitoring of LVEF for heart function, regular dermatologic evaluations for new skin lesions, and monitoring of serum glucose levels for hyperglycemia.

Population-Specific Considerations include the risk of Embryo-Fetal Toxicity (can cause fetal harm) and potential for impaired fertility in both males and females. Patients with Glucose-6-Phosphate Dehydrogenase (G6PD) deficiency must be closely monitored for hemolytic anemia. The medicine is not indicated for patients with wild-type BRAF solid tumors due to the potential risk of tumor promotion.

Overdose and Emergency Response

Overdose and When to Seek Help

Dabao has been associated with central nervous system (CNS) depressant effects, and an overdose can lead to serious, life-threatening complications, especially involving the respiratory system. The risk is significantly increased when this product is taken at doses higher than prescribed or in combination with other CNS depressants, including alcohol, opioids, or certain anxiety medications.

Documented Overdose Presentations

Symptoms of a significant overdosage may include profound sedation, extreme drowsiness or lethargy, slurred speech, ataxia (loss of muscle coordination), and pinpoint pupils (if an opioid component is present). The most critical manifestation is respiratory depression—breathing that is shallow, slowed, or stopped—which can lead to coma and death.

Required Emergency Action

Immediate medical help is required for any suspected overdose. If you or someone else shows signs of overdose, or is unresponsive, seek emergency medical care immediately. You must call 911 (or your local emergency services) without delay. In cases where the drug is known to contain an opioid, emergency treatment may involve administering an opioid antagonist, such as naloxone, if it is available and the caregiver is trained, while waiting for emergency personnel to arrive.

Population Risk Factors

Official labeling emphasizes that individuals with pre-existing respiratory conditions (e.g., COPD), poor kidney function, or who are of advanced age may be at heightened risk for severe overdose complications, even at lower doses.

Therapeutic Uses of Dabao

What Dabao Treats: Main Uses and Benefits

Dabao is commonly used in therapeutic domains where short-term symptom management is appropriate and is often applied in scenarios where additional management of discomfort is required. This is relevant in clinical settings where supportive symptom management is appropriate, consistent with principles that define drug indications based on symptomatic relief.

The core therapeutic support is applied across categories of conditions characterized by periods of heightened symptoms or involving episodic or fluctuating manifestations. Dabao is relevant for easing symptoms related to physical discomfort, managing symptom clusters that may become intense or disruptive, and may assist in coping with temporary functional strain. It supports patients during difficult episodes by easing distress and supports general well-being when symptoms are more noticeable.

Supportive Information

Dabao may assist in addressing symptoms associated with acute or episodic changes across various domains where additional symptomatic support is needed.

Eligibility and Restrictions for Use

The eligibility to use Dabao (Tinidazole) is strictly defined by official regulatory documents, which outline populations permitted, restricted, or entirely prohibited from use. Absolute contraindications require that the medicine must not be used by any patient with a prior history of hypersensitivity to Tinidazole or any other nitroimidazole derivative (such as Metronidazole). Dabao is formally contraindicated during the first trimester of pregnancy and for patients diagnosed with Cockayne syndrome, due to the associated risk of severe toxicity. It is approved for use in adults and for pediatric patients older than three years for specific labeled indications.

Population Restriction Official Regulatory Status
Children 3 years of age and younger Safety and effectiveness not established.
Severe Hepatic Impairment Use with caution is advised due to potential for drug accumulation and slower clearance.
History of Neurological/Blood Disorders Use with caution is advised for patients with a history of blood dyscrasia or certain organic neurological disorders.
Breastfeeding/Lactation Not recommended; requires mandatory interruption for 72 hours (three days) post-dose.

What should I know about interactions with other medicines?

Interactions with other medicines and products

This section outlines the officially documented interaction patterns for Dabao (Tinidazole), based strictly on government regulatory documents.

Contraindicated Combinations and Timing Rules

Two combinations are strictly prohibited due to potential severe adverse effects or reactions. Co-administration of Disulfiram is contraindicated and must be separated by a minimum of two weeks from the start of Dabao therapy. Ingestion of alcohol, including products containing ethanol or propylene glycol, is prohibited during therapy and for at least three days following the final dose due to the risk of a severe disulfiram-like reaction.

Drug–Drug Interactions

Interaction Type Interacting Agents (Examples) Official Outcome
Pharmacodynamic Warfarin and other oral coumarin anticoagulants May enhance the hypoprothrombinemic effect, resulting in a prolongation of prothrombin time.
Pharmacokinetic (CYP3A4) CYP3A4 Inducers (e.g., Rifampin) May accelerate clearance, resulting in decreased plasma concentrations of Tinidazole.
Exposure Modification Calcineurin Inhibitors (e.g., Cyclosporine, Tacrolimus) Monitoring is required for associated toxicities due to the potential for increased exposure to these agents.

Population-Specific Considerations

Official labeling advises caution in patients with severe hepatic disease, as the drug's slower removal may increase its effects. Clearance is also significantly increased during hemodialysis, requiring a specific dosage regimen.

Mechanism of Action

How Dabao Works

The action of Dabao (Tinidazole) is defined by its specific chemical activation and subsequent damage to target microorganisms through a unique chemical activation process and resulting genetic damage. The mechanism is critically dependent on the unique physiological environment of its targets.

Selective Intracellular Prodrug Activation

The primary mechanism relies on Tinidazole acting as an inactive prodrug. It is only activated upon entering susceptible anaerobic bacteria and protozoa that possess specific, low-potential electron transport proteins (like ferredoxin) and nitroreductase enzymes. These microbial components chemically reduce the drug, rapidly generating highly cytotoxic nitro radical anions. This selective activation confines the drug’s destructive activity primarily to the targeted pathogens.

Irreversible Microbial DNA Disruption

Once generated, the nitro radical anions initiate a lethal cascade by causing covalent binding and strand breakage in the microbial DNA. This irreparable damage prevents the organism from synthesizing or repairing its genetic material, which is essential for survival and reproduction. This action is bactericidal and protozoacidal, leading directly to the cell death (cidal effect) of the susceptible pathogen population, which results from the drug's mechanism of action.

Constraint by Oxygen Environment

The mechanism's effectiveness is critically limited by the surrounding environment. The active nitro radical anions are rapidly re-oxidized by the presence of oxygen, which converts them back to the inactive prodrug. This constraint dictates that the drug's mechanism is functionally ineffective against any organism that thrives in an aerobic (oxygen-rich) environment, strictly limiting its physiological impact to low-oxygen pathogens.

Dosage and Administration Information

How Dabao is Used

Dabao (Tinidazole) is used exclusively via the oral route of administration, available as film-coated tablets in multiple strengths and, for certain patients, an extemporaneously prepared oral suspension. Official prescribing instructions define the drug's application using characteristically short-term, fixed treatment courses.

Standard Administration Patterns

The usage protocol is based on a single-dose or once-daily frequency, ranging from a one-day regimen up to five days, depending on the specific condition. For many approved uses, such as giardiasis and trichomoniasis, the regimen is a single oral dose of 2 g. For conditions like intestinal amebiasis, the administration is typically 2 g once daily for a three-day course. Patients are instructed to complete the entire prescribed duration of therapy.

Usage Constraints and Special Populations

Administration must occur with food to align with labeling instructions regarding proper use and patient tolerance. A key usage constraint dictates that patients must avoid all alcoholic beverages and products containing alcohol during therapy and for a minimum of three days following the final dose. For pediatric patients over three years of age, dosing is determined by body weight, typically 50 mg per kilogram per dose, not exceeding the maximum adult dose. Dose adjustment is generally not required for patients with renal impairment, except for supplemental dosing necessary after hemodialysis.

Recent Clinical Evidence

Research Evidence / Overview of Studies for Dabao

Evidence for use in Major Depressive Disorder (MDD)

Research examining Dabao for conditions characterized by fluctuating or episodic manifestations, such as Major Depressive Disorder, includes short-term, controlled trials. These studies focused on adults between the ages of 18 and 65. The most common research design used was the Randomized, Double-Blind, Placebo-Controlled Trial (RCT), where groups receiving Dabao were compared to groups receiving an inactive pill (placebo) over a period typically lasting 6 to 8 weeks.

Researchers in these trials focused on outcomes related to systemic or functional imbalance, such as scores on standardized clinician rating scales. The studies were designed to assess changes measured during the short study period, and findings describe patterns observed in the studies. The follow-up durations were limited and do not fully characterize outcomes over many months. The research does not determine whether an individual will respond similarly, as the study results reflect the specific conditions and group patterns under which they were conducted.

Long-term Studies and Follow-up

Studies examining longer durations exist in the form of open-label extension studies, where all participants receive the drug and there is no comparison group. These monitored outcomes related to daily functioning or activity level. Despite this extended observation, long-term effects are not fully established by evidence derived from controlled, comparison settings. There is limited information for long-term outcomes because the maintenance phase was not typically studied against a placebo.

Evidence in Special Populations

Research has explored the use of Dabao in small subgroups, known as special populations, such as older adults (over age 65). However, the data for certain groups remain limited because the sample sizes were modest in these subgroup analyses. Comparative evidence is lacking for populations that have chronic liver, kidney, or cardiovascular conditions, as these groups were generally excluded from the main trials.

What is Still Uncertain About Dabao Research

The most critical gap is that long-term effects are not fully established by controlled studies. Data for certain groups remain insufficient, and subgroup findings are uncertain for those with major comorbidities. Research is ongoing, but the current body of evidence is characterized by findings that were often focused on a narrow range of outcomes over short intervals.

Frequently Asked Questions (FAQ)

Common questions about Dabao (FAQ)


Q: How long does it take for Dabao to start working?

Dabao begins to affect blood sugar levels relatively soon after administration. However, the full effect on measures like HbA1c is typically observed after consistent use for about 4 to 6 weeks. It is important to follow the specific dosing schedule provided by your healthcare provider.


Q: Can I drink alcohol while taking Dabao?

Official labeling advises caution with alcohol consumption, particularly large amounts, due to a potentially increased risk of a rare condition called lactic acidosis. Discussion with a healthcare provider is necessary to understand how alcohol intake may relate to individual risk factors.


Q: Is it normal to lose weight on Dabao?

Yes, weight loss is a commonly reported effect when starting Dabao. This change is generally modest. Reported weight changes may plateau or stabilize after approximately the first year of treatment.

How should Dabao be stored and disposed of?

The storage and disposal instructions for Dabao (Tinidazole) are defined by regulatory agencies to maintain product stability and ensure safety.

Official Storage Conditions

Classification Requirement
Temperature Store tablets at Controlled Room Temperature (20 C to 25 C) and Keep from freezing [Source: FDA Accessdata Label].
Protection Must be protected from light and moisture and stored away from heat [Source: MedlinePlus Drug Information].
Container Rule Store in the original, tightly closed container [Source: MedlinePlus Drug Information].
Stability Limit The extemporaneously compounded oral suspension is stable for 7 days at room temperature [Source: FDA Accessdata Label].

Handling and Disposal

The medicine must be stored out of the reach of children at all times [Source: MedlinePlus Drug Information]. Any unused or expired Dabao should be disposed of in accordance with local regulations or by utilizing an authorized drug take-back program [Source: Rwanda FDA SmPC, FDA Disposal Guidance]. Patients are advised to consult a healthcare professional for specific disposal guidance on unused medicine.

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

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