VANCOMYCIN

Background and Date of Approval

Vancomycin received FDA approval in 1958 and was subsequently introduced as an antibiotic for clinical use in the United States. Since its approval, it has remained an essential medication for treating serious bacterial infections.

Uses

Vancomycin treats severe bacterial infections caused by drug-resistant Gram-positive bacteria, including MRSA (methicillin-resistant Staphylococcus aureus) and other resistant strains. It is commonly used to treat infections in the bloodstream, skin and soft tissues, heart valves (endocarditis), bones, joints, and certain intestinal infections like C. difficile-associated diarrhea. Vancomycin is reserved for serious infections when other antibiotics are ineffective or inappropriate.

How is it administered?

Healthcare professionals typically administer vancomycin in a hospital or clinical setting. The injection may be given as a slow or intermittent intravenous (IV), depending on the specific condition being treated and the healthcare provider's instructions. Before administration, the healthcare professional will assess the patient's medical history, current health status, and any known allergies or sensitivities.

Side Effects

Vancomycin may cause common side effects such as nausea, vomiting, diarrhea, rash, fever, and headache. Serious side effects can include kidney problems, hearing loss, and severe allergic reactions.

Warnings

Some individuals may be allergic to vancomycin. If you experience symptoms such as rash, itching, swelling, severe dizziness, or difficulty breathing, seek immediate medical attention. Patients with pre-existing kidney problems may be at an increased risk of vancomycin-induced kidney damage. Rapid infusion of this medication can cause Red Man Syndrome, characterized by sudden flushing and redness of the upper body, neck, and face. This medication can cause damage to the auditory system, leading to hearing loss or ringing in the ears (tinnitus). Prolonged use can lead to Clostridium difficile-associated diarrhea (CDAD) or colitis, a severe and potentially life-threatening condition. Rarely, it can cause neurotoxicity, leading to symptoms such as confusion, hallucinations, or seizures. This medication use has been associated with changes in blood cell counts, such as decreased platelets or white blood cells. Prolonged use can lead to the overgrowth of resistant organisms, potentially causing secondary infections that are difficult to treat.

Precautions

An allergic reaction can be life-threatening and requires prompt treatment. Healthcare providers should monitor kidney function and adjust the dosage accordingly. Administering the medication slowly can help prevent red man reaction. Patients with pre-existing hearing impairment or those receiving high doses of vancomycin may be at a higher risk and should avoid this medication. If you experience severe diarrhea while taking it, inform your healthcare provider. Inform your healthcare provider about all your medications to avoid potential interactions. Close monitoring of liver function may be necessary for impaired liver individuals. Patients experiencing any neurological symptoms while taking it should seek immediate medical attention. Regular blood tests may be necessary to monitor during treatment.

Word of Advice

Patients must inform their healthcare provider of any known allergies or previous adverse reactions to vancomycin or other antibiotics. Close monitoring of kidney and liver function is essential, particularly in patients with pre-existing conditions affecting these organs. Proper dosage adjustment is necessary, taking into account the patient's weight, age, and renal function. Patients should complete the full course of treatment as prescribed, even if symptoms improve. Pregnant and breastfeeding women should consult their healthcare provider before use. Patients should report any severe or concerning side effects promptly during treatment. This medication requires cautious use in elderly and paediatric populations, with dosages adjusted accordingly. These precautions are intended to optimise the benefits of this medication while reducing the risk of side effects and antibiotic resistance.

References

Strides Pharma U.K. Ltd, Electronic Medicines Compendium (EMC), [Revised on 4 Dec 2022] [Accessed on 28 Jul 2023], https://www.medicines.org.uk/emc/product/14318/pil#gref Mylan Institutional LLC, FDA (Food and Drug Safety Administration) [Revised on July 2018], [Accessed on 28 Jul 2023] https://www.accessdata.fda.gov/drugsatfda_docs/label/2018/209481s000lbl.pdf Camille E. Beauduy, Lisa G. Winston, Beta-Lactam & Other Cell Wall- & Membrane-Active Antibiotics, Lange's Basic & Clinical Pharmacology, 14th Edition, 2018, 795-814. KD Tripathi, Macrolide, Lincosamide, Glycopeptide, and other Antibacterial Antibiotics, Essentials of Medical Pharmacology, 8th Edition, 2019, 801-814.

Frequently Asked Questions

What are the common side effects of vancomycin?

Common side effects of vancomycin include nausea, vomiting, diarrhea, rash, redness or swelling at the injection site, fever, headache, and low blood pressure.

Can vancomycin cause hearing loss?

Yes, in rare cases, vancomycin can cause hearing loss or ear ringing (tinnitus), especially in patients with pre-existing hearing impairment or those receiving high doses or prolonged treatment.

How is vancomycin dosed?

Vancomycin dosing is based on various factors, including the type of infection, the patient's weight, age, kidney function, and the severity of the infection. Healthcare providers typically determine the dosing regimen.

Can vancomycin be given to children?

Yes, vancomycin can be used in children, but the dosing must be adjusted based on the child's weight and kidney function. Pediatric patients should be closely monitored during treatment.

What is the risk of vancomycin-resistant bacteria?

Overuse or misuse of vancomycin can contribute to developing vancomycin-resistant bacteria, a significant concern in healthcare settings.

How long should vancomycin treatment be continued?

The duration of vancomycin treatment depends on the specific infection and the patient's response to the medication. The full course of treatment should be completed as prescribed, even if symptoms improve.

Available Brands 10

Written By: Muskan Patel, M.Pharm

Reviewed By: Dr. Vishwa Patel, MBBS