Vermox (Mebendazole) Dosage and Side Effects
VERMOX is a drug used to treat infestations of the intestine with one or several of the following parasitic worms:pinworm (E. vermicularis); roundworm (A. lumbricoides); whipworm (T. trichiura); hookworm (A. duodenale; N. americanus); threadworm (S. stercoralis); and tapeworm (T. solium).
Warnings and Precautions
BEFORE you use VERMOX talk to your doctor or pharmacist if:
- you are pregnant, or think you may be;
- you are breast-feeding or planning to breastfeed;
- you are taking cimetidine (medicine used for acid in the stomach);
- you are taking metronidazole (medicine used to treat bacterial and protozoan infections);
- you are taking any other medications, including prescription, over-the-counter, herbal or natural health products
The following undesired effects have been reported and may occur during treatment with VERMOX:
- stomach aches and pains, intestinal gas, and diarrhea;
- skin rash;
- hair loss, which in some cases may be permanent;
- blood and liver disorders;
- kidney problems can occur with prolonged use of VERMOX at doses substantially higher than recommended (much more than normally prescribed).
If any of the following symptoms occur, contact your doctor immediately:
- A severe skin disorder consisting of skin rashes, blisters on the skin and sores in the mouth, or on the eyes, anus or genitals region, along with fever;
- A severe hypersensitivity (allergic) reaction occurs after administration with symptoms such as swollen mouth, throat, extremities, difficulty breathing, shortness of breath, skin rash, itching, hives, flushing or fainting.
- Convulsions (seizures) have been reported, including in infants.
This is not a complete list of side effects. For any unexpected effects while taking VERMOX, contact your doctor or pharmacist.
Interactions with this medication
Inform your doctor if you are taking cimetidine (medicine used for acid in the stomach). If so, your VERMOX dosage might have to be adapted. The use of VERMOX with metronidazole (medicine used to treat bacterial and protozoan infections) should be avoided.
Proper Use of this medication
Take the tablets with some liquid. You do not have to take VERMOX with food. You do not have to follow a special diet or take products which stimulate the stools. The amount of VERMOX you have to take will depend on the type of worm you are infected with. If in doubt, consult your doctor or pharmacist.
Tablets may be chewed or swallowed whole. For children 1 to 6 years old who have difficulty in swallowing tablets, crush the tablet before giving. Always supervise a child while they are taking this medicine.
Usual dose: Adults and Children over 2 years of age:
Infestation with pinworm: Take 1 tablet as a single dose. After 2 and 4 weeks, take 1 tablet again. This is necessary to completely get rid of the infestation. The first treatment killed off the worms, but not their eggs. Those eggs might cause another infestation.
Infestation with whipworm, roundworm, hookworm, threadworm, tapeworm or with several worm species: Take 1 tablet in the morning and in the evening, for 3 days in a row.
If infestation continues after 3 weeks, contact your doctor.
If amounts higher than recommended are taken, blood, kidney, and liver disorders, some of which may be serious, may occur. Hair loss, which in some cases may be permanent, may also occur.
If you have taken too much VERMOX, you might suffer from stomach cramps, nausea, vomiting and diarrhea. If this is the case, you should consult your doctor who may recommend that you take some activated charcoal; it will absorb the VERMOX that is left in the stomach.
In case of drug overdose, contact a health care practitioner, hospital emergency department or regional Poison Control Centre immediately, even if there are no symptoms.