Feller

Feller is an organic compound that consists of a six-membered ring containing two opposing nitrogen atoms. Feller exists as small alkaline deliquescent crystals with a saline tasteraverm was introduced to medicine as a solvent for uric acid. When taken into the body the drug is partly oxidized and partly eliminated unchanged. Outside the body, piperazine has a remarkable power to dissolve uric acid and producing a soluble urate, but in clinical experience it has not proved equally successfulraverm was first introduced as an anthelmintic in 1953. A large number of piperazine compounds have anthelmintic action. Their mode of action is generally by paralysing parasites, which allows the host body to easily remove or expel the invading organism.

Feller belongs to the family of medicines called anthelmintics. Anthelmintics are medicines used in the treatment of worm infections.

Feller is used to treat:

Common roundworms (ascariasis);

Hookworm infections (uncinariasis);

Pinworms (enterobiasis; oxyuriasis);

Whipworms (trichuriasis); and

More than one worm infection at a time.

Feller may also be used for other worm infections as determined by your doctor.

Feller works by keeping the worm from absorbing sugar (glucose). This gradually causes loss of energy and death of the worm.

Feller belongs to the family of medicines called anthelmintics. Anthelmintics are medicines used in the treatment of worm infections.

Feller is used to treat:

• Common roundworms (ascariasis);
• Hookworm infections (uncinariasis);
• Pinworms (enterobiasis; oxyuriasis);
• Whipworms (trichuriasis); and
• More than one worm infection at a time.

Feller may also be used for other worm infections as determined by your doctor.

Feller works by keeping the worm from absorbing sugar (glucose). This gradually causes loss of energy and death of the worm.

Feller is available only with your doctor's prescription.

The recommended dosage in patients one year of age and older is one Feller™ CHEWABLE 500 mg tablet taken as a single dose.

Chew Feller™ CHEWABLE 500 mg tablet completely before swallowing. Do not swallow the tablet whole.

For patients who have difficulty chewing the tablet, Feller™ CHEWABLE 500 mg tablet can be placed in a spoon and approximately 2 mL to 3 mL of drinking water added onto the tablet using a dosing syringe. Within 2 minutes, the tablet absorbs the water and turns into a soft mass with semi-solid consistency, which can then be swallowed.

Feller™ CHEWABLE 500 mg tablet can be taken without regard to food intake.

How supplied

Dosage Forms And Strengths

Chewable Tablet: 500 mg round, flat radius-edged white to yellowish chewable tablet that is debossed with “M/500” on one side and “J” on the other side.

Storage And Handling

Feller™ CHEWABLE tablets are supplied as 500 mg, round, flat radius-edged white to yellowish chewable tablets that are debossed with “M/500” on one side and “J” on the other side. They are supplied as follows:

Bottles of 200 tablets NDC 50458-675-20

Store below 30°C. Keep container tightly closed. Unused tablets should be discarded 1 month after the bottle is first opened. When the bottle is first opened this Discard After date should be written on the bottle label in the place provided.

Manufactured by: Lusomedicamenta Lisbon, Portugal. Manufactured for: Janssen Pharmaceuticals, Inc. Titusville, New Jersey 08560. Revised: Oct 2016

See also:
What is the most important information I should know about Feller?

In deciding to use a medicine, the risks of taking the medicine must be weighed against the good it will do. This is a decision you and your doctor will make. For Feller, the following should be considered:

Allergies

Tell your doctor if you have ever had any unusual or allergic reaction to Feller or any other medicines. Also tell your health care professional if you have any other types of allergies, such as to foods, dyes, preservatives, or animals. For non-prescription products, read the label or package ingredients carefully.

Use Feller as directed by your doctor. Check the label on the medicine for exact dosing instructions.

• An extra patient leaflet is available with Feller. Talk to your pharmacist if you have questions about this information.
• Take Feller by mouth with or without food.
• Chew thoroughly before swallowing. Feller may also be crushed and mixed with food.
• Wear tight underwear both day and night while taking Feller.
• If you miss a dose of Feller, take it as soon as possible. If it is almost time for your next dose, skip the missed dose and go back to your regular dosing schedule. Do not take 2 doses at once.

Ask your health care provider any questions you may have about how to use Feller.

Use: Labeled Indications

Intestinal nematode infection: Treatment of patients ≥2 years of age with GI infections caused by Ancylostoma duodenale or Necator americanus (hookworms), Ascaris lumbricoides (roundworms), Enterobius vermicularis (pinworms), and Trichuris trichiura (whipworms).

Off Label Uses

Capillariasis

Data from case reports suggest that Feller may be beneficial for the treatment of capillariasis.

See also:
What other drugs will affect Feller?

CarBAMazepine: May decrease the serum concentration of Feller. Monitor therapy

Cimetidine: May increase the serum concentration of Feller. Monitor therapy

Fosphenytoin: May decrease the serum concentration of Feller. Monitor therapy

MetroNIDAZOLE (Systemic): Feller may enhance the adverse/toxic effect of MetroNIDAZOLE (Systemic). Particularly the risk for Stevens-Johnson syndrome or toxic epidermal necrolysis may be increased. Avoid combination

Phenytoin: May decrease the serum concentration of Feller. Monitor therapy

Ritonavir: May decrease the serum concentration of Feller. Monitor therapy

See also:
What are the possible side effects of Feller?

Clinical Studies

Because clinical trials are conducted under widely varying conditions, adverse reaction rates observed in the clinical trials of a drug cannot be directly compared to rates in the clinical trials of another drug and may not reflect the rates observed in practice.

The safety of Feller was evaluated in 6276 adult and pediatric subjects one year of age and older who participated in 39 clinical trials for treatment of single or mixed parasitic infections of the gastrointestinal tract. In these trials, the formulations, dosages and duration of Feller treatment varied. Adverse reactions reported in Feller-treated subjects from the 39 clinical trials are shown in Table 1 below.

Table 1: Adverse Reactions Reported in Feller-Treated Subjects from 39 Clinical Trials*

Clinical Studies With Feller Chewable 500 mg Tablet

The safety profile of Feller chewable 500 mg tablets administered as a single dose was evaluated in 677 pediatric subjects aged 1 to 16 years and in 34 adults. The safety profile was consistent with the known safety profile of Feller.

Postmarketing Experience

The following adverse reactions have been identified in adult and pediatric patients postmarketing with Feller formulations and dosages other than the Feller™ CHEWABLE 500 mg tablet. Because these reactions are reported voluntarily from a population of uncertain size, it is not always possible to reliably estimate their frequency or establish a causal relationship to drug exposure.

Table 2: Adverse Reactions Identified During Postmarketing Experience with Feller*