Saturday, 1 April 2023

 Metronidazole as Therapeutic Agent for Amoebiasis: An Overview

Amoebiasis is a parasitic infection caused by the protozoan parasite Entamoeba histolytica. It is one of the most common parasitic infections worldwide, affecting millions of people each year. Amoebiasis can cause a range of symptoms, from mild diarrhea to life-threatening colitis and liver abscesses. One of the most commonly used drugs for the treatment of amoebiasis is metronidazole.

Metronidazole is a synthetic nitroimidazole derivative with broad-spectrum antibacterial and antiprotozoal activity. It is effective against a range of anaerobic bacteria, as well as certain protozoan parasites, including Entamoeba histolytica. Metronidazole works by disrupting the DNA of the parasites and bacteria, leading to their death.

Metronidazole is the drug of choice for the treatment of amoebiasis, as it is highly effective, well-tolerated, and relatively inexpensive. It is available in both oral and intravenous formulations, making it easy to administer.

The recommended dose of metronidazole for the treatment of amoebiasis is 500mg to 750mg orally three times daily for 5-10 days. For severe cases of amoebic colitis or liver abscesses, intravenous metronidazole may be used initially, followed by oral treatment.

The use of metronidazole in the treatment of amoebiasis is generally safe and well-tolerated, although some patients may experience mild side effects, such as nausea, vomiting, and diarrhea. In rare cases, metronidazole can cause more serious side effects, such as seizures and peripheral neuropathy.

To ensure the effectiveness of metronidazole in the treatment of amoebiasis, it is important to adhere to the prescribed dosage and duration of treatment. Patients should also be advised to avoid alcohol while taking metronidazole, as this can cause a disulfiram-like reaction.

In conclusion, metronidazole is a highly effective and safe therapeutic agent for the treatment of amoebiasis. It is widely available, relatively inexpensive, and well-tolerated by most patients. However, as with any medication, it is important to follow the prescribed dosage and duration of treatment and to monitor for any potential side effects.


Amoebiasis: Pharmacotherapy - Pharmacology


Amoebiasis: Pharmacotherapy & Classification of amebicidal agents - Pharmacology The video discusses the pharmacotherapy of amebiasis and classifies the therapeutic agents into three categories: luminal amebicides, systemic amebicides, and mixed amebicides. The video begins by highlighting the importance of luminal amebicides in eradicating asymptomatic colonization of trophozoites in the intestinal lumen, which is necessary to prevent the recurrence of the disease. The luminal amebicides discussed in the video are iodoquinol, diloxanide furoate, and paromomycin, with paromomycin being the most effective agent in this class. The video then moves on to systemic amebicides, which are effective against the amoebas in the intestinal wall and liver. Chloroquine and Dehydroemetine are discussed in this category, with Chloroquine being the most widely used agent and effective against a hepatic abscess but not useful for luminal amoebiasis. Dehydroemetine has some toxicities that limit its use, and the intramuscular form is preferred over the oral form. Finally, the video discusses mixed amebicides, which are effective against both systemic and luminal amoebas. Metronidazole, widely known as Flagyl, is the mixed amebicide of choice for treating amebic infections and is also used to treat other diseases caused by other protozoans and anaerobic bacteria. Tinidazole is another agent in this class, similar to metronidazole in the spectrum of activity and adverse effects. Overall, the video provides a detailed overview of the pharmacotherapy of amebiasis, including the classification of different agents and their modes of action. Thanks for watching & do support us. COVERED TOPICS 0:00 Intro 0:10 Diagram from previous video (amoebiasis) 0:25 Classification of amoebicidal agents 0:40 Luminal amoebicides 2:10 Systemic amoebicides 3:20 Mixed amoebicides 4:10 End LINKS: Also, watch Amoebiasis: Life cycle, Types & Pharmacotherapy - Pharmacology https://youtu.be/-n80uxtD8KA Parasympathomimetics: Clinical Uses & Classification of Direct Acting Cholinergic Drugs https://youtu.be/Uhp_GivuSQg Cholinergic Drugs: Pharmacological actions of Parasympathomimetics, Direct acting drugs https://youtu.be/XxeitbKE68w Cholinergic drugs | Parasympathomimetics classification and mechanism of action - Pharmacology https://youtu.be/0ylQGye76xc Cholinergic transmission | acetylcholine synthesis & metabolism | cholinergic drugs | pharmacology https://youtu.be/PBsCl95X3DI Support us on: Facebook https://web.facebook.com/MK-MediGuide-Lectures-103055758022942/?view_public_for=103055758022942 #MKMediguide #mediguide #amoebiasis #amebiasis #entameba #amebicdysentry #ameba #amoeba