Fenbenz 500 Mg (Fenbendazole)

Last Updated on 02/13/2026 ✔ Medically Reviewed by Dr. Arjun Srivastav

What Is Fenbenz 500 Mg?

Fenbenz 500 mg is a medication that contains fenbendazole, an anthelmintic (anti-worm) drug.

Fenbenz 500 mg is a medicinal treatment given to cure infections caused by parasites and a few worms. This medicine removes the infection completely from your body when used as per a suitable dose and duration given by your doctor.

Fenbendazole is commonly used in veterinary medicine. Human use depends on local medical regulations and should only be done under professional supervision.

Key Information About Fenbenz 500 Mg

• Active ingredient- Fenbenz 500 mg
• Purpose- To cure infections by parasites and worms affecting the stomach, nails, skin, and scalp.
• Used for treating- Strongyloidiasis, onchocerciasis, scabies, and dandruff.
• Mechanism- Stops the infection but affecting metabolism of the worms and parasites.
• Dosage- Given by a doctor based on type and severity.

How Does Fenbenz 500 Mg Work?

Fenbendazole blocks the formation of microtubules in parasites, which:

• Disrupts their metabolism

• Prevents energy absorption

• Leads to parasite death

The onset of action takes place over a few days as the patient continues taking the medicine.

• At the NIH, scientists found that the generic element works to kill the parasite or the worms by affecting its metabolic activities.
• Further research shows that the parasite or the worms are not able to consume nutrients from the host or be able to reproduce, which eventually kills them and cures the infection.

What Is Fenbenz 500 Mg Used For?

Fenbenz 500 mg is primarily used to treat parasitic worm infections, such as:

• Roundworms
• Hookworms
• Whipworms
• Certain other intestinal parasites

How Is Fenbenz 500 Mg Treatment Done?

Fenbenz 500 mg contains fenbendazole, an anthelmintic (anti-worm) medicine primarily used to treat parasitic infections.

• To get the best results from using Fenebenz 500 mg, follow a timely schedule of using the medicine.
• In case you are taking itonn an empty stomach, take it a few hours after getting up from your bed.
• If you have the medicine after meals, take it 1 hour after some food.

✓ For Use In Adults

• To use Fenebenz 500 mg pills in case of adults, the medicine is taken orally by swallowing.

✓ For Use In Children

• To use in children, use the Fenebenz 500 mg suspension, which comes in the form of a solution.

Dosage

✓ For Children

For children aged 8 to 10 years, the doctors recommend a 500 mg dose taken 1 to 2 times daily for 7 to 21 days.

✓ For Adults

For adults, the dosage is-

• For scabies, use the 500 mg dose once daily.
• For dandruff, use half of the 500 mg dose or use the 500 mg pill daily.
• For intestinal infections- take the 5000 mg dose 1-2 times daily for 7 to 15 days.

✓ What Occurs If I Overdose On This Medicine?

The doctors avoid you to increase the dose further without their recommendation, which can give rise to side effects.

✓ What Occurs If I Miss Taking A Dose?

Studies of Fenebenz 500 mg show only ofgradual effect. This means that the patient has to keep using the medicine regularly to get a constant effect of the medicine. In case of too many doses being missed, the effects of the pill can be too little, resulting in not getting a cure for the infection.

Drug Interaction Classification

✓ Severe Interacting Medicines

The TGA has identified major drug interactions of Fenebenz 500 mg-

• Any kind of other anti-infective medicine
• Other antiparasitic pills
• Ayurvedic or herbal remedy of infections

✓ Mild Interactions

• Sedatives
• High doses of painkillers
• Muscle relaxants
• Blood thinners

Side Effects

As per scientists studying the effects of Fenebenz 500 mg in the FDA, side effects of the drug were mostly mild ones,s eventhough theyt occurred with a few rare and more severe ones.

✓ Mild Effects

• Headache
• Dizziness
• Fatigue
• Drowsiness
• Muscle cramps

✓ Severe Issues

• Diarrhea with blood
• Severe stomach pain
• Flushing

When To Seek Medical Help?

Take the help of a doctor immediately if you see any major side effects as given above or any allergic signs that trigger immediately,y like-

• Swelling of the mouth, lips, and face
• Rashes on the skin

Precautions And Warnings

✓ Pregnancy

The doctors can sometimes recommend the Fenbenz 500 mg or any other suitable, smaller dose for the pregnant mother. Health tests can be done regularly during this time to avoid affecting the health of the mother or the fetus.

✓ Breastfeeding

Studies at the NCBI show that traces of the medicine may be found for a few days when taking the pill for more than a week. It is thus not safe to take any brand of Fenebenz 500 mg if your child is completely dependent on your breast milk.

✓ Addictions

Addictive substances like alcohol or drugs affect your body by causing mild side effects due to the action of the medicine. In addition, it also affects your immunity,y giving a chance for the infection to get more severe.

✓ Driving

Driving is not recommended for a patient who feels drowsy, fatigued, or hasa headachee right after taking the pill.

Safety Advice For Fenbenz 500 Mg

✓ With Other Health Issues

Use of Fenbenz 500 mg is not safe with health issues like-

• Critical kidney disorders
• Stomach ulcer
• Major liver conditions like fatty liver disorder
• Other stomach infections
• Acid reflux disorder

Benefits Of Taking Fenbenz 500 Mg

• It acts against different infections, such as worms and parasites.
• It works against infections in different areas of the body.
• You get doses easily available for both adults and children.
• It has been studied by all the major drug institutes across the world and found to be effective.
• It cures severe infections in just a few weeks.

Where Can You Buy Fenbenz 500 Mg In Australia?

You can use a reliable website like australiarxmeds.com for discreet delivery in Australia. You can order Fenbenz 500 online from pharmacies. Make sure you only buy from verified and licensed sources to ensure authenticity and safety.

FAQs