Gentyric, a brand name for a formulation containing essential Gentamicin, is widely used for various health benefits. This guide provides comprehensive information on the uses, dosage, side effects, and mechanism of action of Gentyric, as well as insights into how long it takes to work. Understanding these aspects can help you make informed decisions about its use and effectiveness.

Gentyric Introduction

Gentyric is an antibiotic in the aminoglycoside family. It is usually prescribed to treat a variety of bacterial infections. It works by inhibiting the growth of bacteria. Gentyric is available in injection, ointment, capsule, and eye drop form.

Uses for Gentyric

Gentyric is used to treat serious bacterial infections including pneumonia, meningitis, septicemia, endocarditis, and urinary tract infections. It is also used to prevent post-operative infections.

Mechanism of Action

Gentyric works by inhibiting bacterial protein synthesis. It binds to and alters the ribosomes in bacterial cells, blocking vital processes leading to cell death.

How Long Does it Take to Work?

The effects of gentamicin begin within one to two hours after administration. Depending on the severity of infection, improvement may be noticed in as early as 24 hours.


Gentyric is poorly absorbed when taken orally. When administered intravenously (IV), it is rapidly and completely absorbed.

Route of Elimination

Gentyric is eliminated mainly in the kidney, with only a small amount being excreted in the faeces.


The dosage of gentamicin varies depending on the individual and the type of infection being treated. Typical doses in adults and children over 12 years of age include:

  • IV route: 2-3 mg/kg per day, divided into 2 or 3 doses a day
  • Oral route: 2-3 mg/kg/day, divided into 2 or 3 doses a day.


Gentyric can be administered intravenously (IV) or orally. It can also be administered transdermally as an ointment to treat infected skin.

Side Effects

Common side effects of gentamicin include nausea, vomiting, abdominal pain, diarrhea, rash, itching, headache, dizziness, vertigo, and tinnitus.


Gentyric is potentially toxic. It can cause permanent hearing loss, kidney damage, and neuromuscular paralysis. It is important not to exceed the recommended dose.


Gentyric should be used with caution in people with impaired renal or hepatic function, as well as those with hearing impairment. It should not be used to treat viral infections.


Gentyric can interact with certain drugs, such as other antibiotics, seizure medications, and diuretics. Tell your doctor about all medications you are taking to avoid potential drug interactions.

Disease Interaction

Gentyric can increase the risk of kidney damage in people with diabetes. It can also increase the risk of hearing impairment in people with myasthenia gravis and muscular dystrophy.

Drug Interaction

Gentyric can interact with other medications including antibiotics, seizure medications, and diuretics. Tell your doctor about all drugs you are taking to avoid potential drug interactions.

Food Interactions

Gentyric may interact with certain foods, such as dairy products. It is important to take gentamicin on an empty stomach or several hours after meals.

Pregnancy Use

Gentyric is generally considered safe to use during pregnancy. However, it should be used with caution in women with preterm labor, as extra caution should be taken to prevent early delivery.

Lactation Use

Gentyric is generally considered safe to use while breastfeeding. However, it is important to tell your doctor if you are breastfeeding before taking gentamicin.

Acute Overdose

Overdosing on gentamicin can cause hearing loss, kidney damage, nephrotoxicity, and central nervous system toxicity. If an overdose is suspected, seek medical attention immediately.


Gentyric should not be used by people with previous allergy to gentamicin or other aminoglycosides. It should also be avoided in patients who suffer from neuromuscular diseases.

Use Direction

Gentyric should be taken exactly as prescribed by your doctor. Do not take more or less than the recommended dose, and do not stop taking gentamicin without consulting your doctor.

Storage Conditions

Gentyric should be stored in a cool, dry, dark place (preferably a refrigerator). Keep out of the reach of children and pets.

Volume of Distribution

The volume of distribution (Vd) for gentamicin is 0.36-0.6 liters/kg. This means that gentamicin is widely distributed throughout the body and can reach all body tissues.

Half Life

The half-life of gentamicin is 2-3 hours. This means that half of the drug will be eliminated from the body in 2-3 hours after administration.


The clearance of gentamicin from the body is relatively rapid (3-5 mL/min/kg). Therefore, frequent dosing is necessary to maintain an effective therapeutic concentration.

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