Tigecycline 50mg Inj, 1 Vial
Overview
What is this medicine?
How to Use This Medicine
If you need to store this medication at home, consult with your doctor, nurse, or pharmacist to determine the proper storage procedure.
In the event that you miss a dose, contact your doctor promptly to receive guidance on the appropriate course of action.
Lifestyle & Tips
- Avoid excessive sun exposure and use sunscreen, as tigecycline can cause photosensitivity.
- Report any new or worsening symptoms, especially severe abdominal pain, persistent diarrhea, or signs of allergic reaction.
- Do not take other medications without consulting your doctor or pharmacist, especially blood thinners like warfarin or birth control pills.
Available Forms & Alternatives
Available Strengths:
Dosing & Administration
Adult Dosing
Condition-Specific Dosing:
Pediatric Dosing
Dose Adjustments
Renal Impairment:
Hepatic Impairment:
Pharmacology
Mechanism of Action
Pharmacokinetics
Absorption:
Distribution:
Elimination:
Pharmacodynamics
Safety & Warnings
BLACK BOX WARNING
Side Effects
Although rare, some people may experience severe and potentially life-threatening side effects while taking this medication. If you notice any of the following symptoms, contact your doctor or seek medical attention immediately:
Signs of an allergic reaction, such as:
+ Rash
+ Hives
+ Itching
+ Red, swollen, blistered, or peeling skin with or without fever
+ Wheezing
+ Tightness in the chest or throat
+ Trouble breathing, swallowing, or talking
+ Unusual hoarseness
+ Swelling of the mouth, face, lips, tongue, or throat
Signs of liver problems, including:
+ Dark urine
+ Tiredness
+ Decreased appetite
+ Upset stomach or stomach pain
+ Light-colored stools
+ Vomiting
+ Yellow skin or eyes
Signs of too much acid in the blood (acidosis), such as:
+ Confusion
+ Fast breathing
+ Fast heartbeat
+ Irregular heartbeat
+ Severe stomach pain, upset stomach, or vomiting
+ Feeling extremely sleepy
+ Shortness of breath
+ Feeling very tired or weak
Other severe symptoms, including:
+ Inability to urinate or changes in urine output
+ Severe diarrhea, stomach cramps, or bloody stools (may be a sign of C. diff-associated diarrhea, a potentially life-threatening condition)
+ Severe stomach pain, back pain, or vomiting (may be a sign of pancreatitis)
+ Headache or vision problems, such as blurred vision, double vision, or loss of vision (may be a sign of raised pressure in the brain)
Common Side Effects
Most people experience mild or no side effects while taking this medication. However, some common side effects may occur, including:
Diarrhea
Stomach pain
Upset stomach
Vomiting
* Headache
If any of these side effects or other symptoms bother you or do not go away, contact your doctor for advice.
Reporting Side Effects
If you experience any side effects, you can report them to the FDA at 1-800-332-1088 or online at https://www.fda.gov/medwatch. You can also contact your doctor for guidance on managing side effects.
Seek Immediate Medical Attention If You Experience:
- Severe abdominal pain (especially if radiating to the back), nausea, or vomiting (signs of pancreatitis)
- Severe, persistent diarrhea, especially if bloody or watery, with abdominal cramps and fever (signs of C. difficile-associated diarrhea)
- Yellowing of the skin or eyes, dark urine, or unusual tiredness (signs of liver problems)
- Rash, hives, itching, swelling of the face/lips/tongue/throat, severe dizziness, or trouble breathing (signs of allergic reaction)
- New or worsening signs of infection (e.g., fever, chills, sore throat) which could indicate a superinfection.
Before Using This Medicine
It is essential to inform your doctor about the following:
Any allergies you have, including allergies to this medication, its components, or other substances, such as foods or drugs. Be sure to describe the allergic reaction and its symptoms.
If you have a gastrointestinal (GI) tract perforation (a hole in the GI tract).
This list is not exhaustive, and it is crucial to discuss all your medications (prescription, over-the-counter, natural products, and vitamins) and health conditions with your doctor and pharmacist. They will help determine if it is safe to take this medication with your other medications and health conditions.
Remember, do not start, stop, or change the dosage of any medication without first consulting your doctor.
Precautions & Cautions
It is essential to inform all your healthcare providers, including doctors, nurses, pharmacists, and dentists, that you are taking this medication. Regular blood work and laboratory tests should be performed as directed by your doctor to monitor your condition.
Duration of Use and Risk of Infection
Do not take this medication for longer than prescribed by your doctor. Prolonged use may increase the risk of developing a second infection.
Sun Sensitivity
This medication may increase your susceptibility to sunburn. Exercise caution when exposed to sunlight, and notify your doctor if you experience excessive sunburn or sensitivity.
Dental and Skeletal Effects
In children under 8 years old, or in unborn babies exposed to this medication during certain stages of pregnancy, tooth discoloration (yellow-gray brown) may occur. This change is permanent. Additionally, other tooth problems and effects on bone growth have been reported in these individuals. If you have concerns, consult your doctor.
Contraception and Pregnancy
The effectiveness of birth control pills and other hormone-based contraceptives may be reduced when taking this medication. To prevent pregnancy, use an alternative method, such as condoms, in conjunction with your regular birth control.
If you are pregnant, plan to become pregnant, or are breastfeeding, consult your doctor to discuss the potential benefits and risks to you and your baby.
Use in Children
This medication is not approved for use in children. However, your doctor may determine that the benefits of taking this medication outweigh the risks. If your child has been prescribed this medication, ask your doctor about the potential benefits and risks, and discuss any concerns you may have.
Overdose Information
Overdose Symptoms:
- Nausea
- Vomiting
- Diarrhea
- Increased liver enzymes
What to Do:
There is no specific antidote for tigecycline overdose. Treatment should be symptomatic and supportive. Tigecycline is not significantly removed by hemodialysis. Call 1-800-222-1222 (Poison Control Center) immediately for advice.
Drug Interactions
Major Interactions
- Warfarin (increased INR/bleeding risk)
Moderate Interactions
- Oral contraceptives (potential for decreased efficacy)
- Other bacteriostatic agents (e.g., chloramphenicol, macrolides, sulfonamides - theoretical antagonism with bactericidal agents, though clinical significance is often debated)
Monitoring
Baseline Monitoring
Rationale: To confirm the causative pathogen and its susceptibility to tigecycline.
Timing: Prior to initiation of therapy.
Rationale: To assess baseline hepatic function, especially important given the drug's metabolism and excretion, and the risk of hepatotoxicity.
Timing: Prior to initiation of therapy.
Rationale: To assess baseline renal function, although no dose adjustment is typically needed for renal impairment.
Timing: Prior to initiation of therapy.
Rationale: To assess baseline hematologic status, as myelosuppression has been reported.
Timing: Prior to initiation of therapy.
Routine Monitoring
Frequency: Daily
Target: Resolution of infection
Action Threshold: Lack of improvement or worsening symptoms may indicate treatment failure or superinfection.
Frequency: Periodically, especially with prolonged therapy or in patients with pre-existing hepatic impairment.
Target: Within normal limits or stable
Action Threshold: Significant elevations (e.g., >3x ULN) may warrant dose adjustment or discontinuation.
Frequency: Frequently (e.g., daily to every few days) upon initiation and during co-administration.
Target: Therapeutic range for indication
Action Threshold: INR outside target range requires warfarin dose adjustment.
Frequency: Daily
Target: Absence of symptoms
Action Threshold: New or worsening symptoms require immediate evaluation (e.g., amylase, lipase).
Frequency: Daily
Target: Absence of symptoms
Action Threshold: New or worsening symptoms require evaluation and appropriate treatment.
Symptom Monitoring
- Nausea
- Vomiting
- Diarrhea
- Abdominal pain
- Headache
- Dizziness
- Injection site reactions (pain, swelling, phlebitis)
- Rash
- Photosensitivity
- Signs of pancreatitis (severe abdominal pain, radiating to back, nausea, vomiting)
- Signs of pseudomembranous colitis (severe, persistent diarrhea, abdominal cramps, fever)
- Signs of hypersensitivity reaction (rash, itching, swelling, severe dizziness, trouble breathing)
Special Patient Groups
Pregnancy
Tigecycline is classified as Pregnancy Category D. It should not be used in pregnant women unless the potential benefits outweigh the potential risks to the fetus. Tetracycline-class drugs can cause permanent discoloration of teeth (yellow-gray-brown) and reversible inhibition of bone growth in the fetus.
Trimester-Specific Risks:
Lactation
Tigecycline is excreted in human milk. Due to the potential for serious adverse reactions in the breastfed infant (e.g., permanent tooth discoloration, inhibition of bone growth), a decision should be made whether to discontinue nursing or to discontinue the drug, taking into account the importance of the drug to the mother.
Pediatric Use
Tigecycline is contraindicated in children under 8 years of age due to the potential for permanent tooth discoloration and reversible inhibition of bone growth. Its use in children and adolescents (under 18 years) is generally not recommended unless other agents are not suitable, due to the lack of established safety and efficacy and the potential for these adverse effects.
Geriatric Use
No dose adjustment is required based on age. However, elderly patients may be more susceptible to adverse effects, particularly gastrointestinal side effects. Monitor closely for adverse reactions.
Clinical Information
Clinical Pearls
- Tigecycline has a broad spectrum of activity, including against MRSA, VRE, and ESBL-producing Gram-negative bacteria, but it lacks activity against *Pseudomonas aeruginosa* and *Proteus* species.
- High incidence of gastrointestinal side effects (nausea, vomiting) is common, often requiring antiemetic prophylaxis.
- The Black Box Warning regarding increased all-cause mortality means tigecycline should be reserved for situations where alternative treatments are not suitable.
- Risk of pancreatitis, sometimes severe, has been reported. Monitor for new or worsening abdominal pain.
- Not indicated for bloodstream infections due to lower serum concentrations compared to tissue concentrations, and concerns about efficacy in bacteremia.
- Administer via IV infusion over 30-60 minutes to minimize infusion-related reactions.
Alternative Therapies
- Carbapenems (e.g., Meropenem, Imipenem/Cilastatin, Ertapenem) for broad-spectrum coverage.
- Linezolid or Daptomycin for MRSA and VRE infections.
- Ceftaroline for MRSA and some Gram-negative coverage.
- Colistin or Polymyxin B for multi-drug resistant Gram-negative infections (often as salvage therapy).
- Other tetracyclines (e.g., Doxycycline, Minocycline) for less severe infections or specific pathogens, but with different spectrums and resistance profiles.