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$1.00 USD
General Health
Per pill
In Stock
Secnidazole is a synthetic derivative of the group of nitroimidazoles. Its antiparasitic activity affects Entamoeba histolytica, Giardia lamblia, Trichomonas vaginalis and Gardnerella vaginalis.
8.95$. Delivery period 14-21 days.
Free for orders more than $200.00 USD
27.95$. Delivery period 5-7 days.
Free for orders more than $300.00 USD

Secnidazole 1 g

Name Quantity Price Each Total Price Save
Secnidazole 1 g 2 pills $1.00 USD $2.00 USD

Secnidazole 500 mg

Name Quantity Price Each Total Price Save
Secnidazole 500 mg 8 pills $3.75 USD $30.00 USD
  • Product overview

Secnidazole is a synthetic derivative of the group of nitroimidazoles. Its antiparasitic activity affects Entamoeba histolytica, Giardia lamblia, Trichomonas vaginalis and Gardnerella vaginalis.

This substance is indicated for the treatment of intraintestinal and extraintestinal amebiasis (liver), intestinal diseases caused by Giardia lamblia (giardiasis or lambliasis), trichomoniasis (vaginitis and urethritis)and nonspecific vaginosis.

Medizzine recommends consult your doctor if you are unsure (or you do not know) why you have been given secnidazole.

Other ingredients of available commercial presentations:

Besides secnidazole, this medicine can include excipients such as lactose, tartrazine, magnesium stearate, microcrystalline cellulose, corn starch, sodium glycolate and talc.


The composition of the various presentations may vary from one country to another. We recommend you consult the information provided by your local supplier.

Important information

This medicine contains lactose. If you have an intolerance to sugars, contact your doctor before taking it.

This medicine contains tartrazine (yellow dye), which can lead to allergic reactions, especially in patients with a history of reactions to acetylsalicylic acid (aspirin). If you have known allergies such as asthma, rhinitis, urticaria, etc. and/or have allergic reactions to aspirin, consult your doctor before taking it.

Before taking the drug

Do not use secnidazole

If you are allergic (hypersensitive) to the active substance secnidazole or any of the other ingredients of the medicinal product prescribed to you. If you think you may be allergic, ask your doctor.

Allergy symptoms may include:

- Asthma attacks with shortness of breath, audible wheezing or rapid breathing.
- More or less sudden swelling of face, lips, tongue or elsewhere in the body. It is especially critical if it affects the vocal cords.
- Hives, itching, rash
- Anaphylactic shock (loss of consciousness, paleness, sweating, etc.).

Nor you should take this medicine:

- If you have a severe liver disorder
- If you have a blood dyscrasia or porphyria
- If you have an active organic disease of the nervous system

Take special care with secnidazole

If you are being treated with anticoagulants, lithium or phenobarbital. Ask your doctor how to control the possible undesirable effects of coadministration of any of these medications with secnidazole.

it has been observed a slight decrease in white blood cell count during treatment with secnidazole, so it is recommended to do blood tests before and after treatment, especially if is needed to repeat treatment in patients with amebiasis and trichomoniasis.

If in doubt, consult your doctor.

Taking other medicines

Tell your doctor or pharmacist if you are taking or have recently taken any medications, or you receive treatment for kidney problems or for any present illness such as antacids, sucralfate, even those without a prescription.

- Secnidazole enhances the effects of anticoagulants (warfarin,acenocoumarol), so the concurrent administration with these drugs may increase the risk of bleeding.
- Simultaneous administration with phenobarbital reduces the effects of secnidazole and increases its elimination speed.
- Simultaneous administration with lithium derivatives increases the risk of toxicity due to antidepressant.
- It should not be administered simultaneously secnidazole anddisulfiram (medicine used in alcohol detoxification), as it may cause neurological symptoms such as confusion and delirium.

There are published reports of psychotic reactions in patients who have taken secnidazole together with disulfiram (see below Use with food and beverages).

Simultaneous administration with cimetidine decreases its elimination and increases the risk of overdose.

Laboratory tests:

Secnidazole can interfere with liver function tests, masking the results of those tests, giving lower values of the real. This substance can also interfere with the determination of blood glucose obtained by hexokinase procedure.

Consult your doctor or pharmacist before taking any medicine.

Remember that your doctor has prescribed this medicine only for you. Never give it to someone else.

Use with food and beverages

Secnidazol absorption is not influenced by food intake; can be administered before, after or while meals.

Secnidazole should not be administered with drugs whose composition includes ethyl alcohol neither with alcoholic beverages since may occur aches, malaise, severe hypotension, tachycardia, flushing and vomiting, which is known as disulfiram effect. For this reason, drinking alcoholic beverages should be avoided during treatment including up to 4 days after completion.

Secnidazole should not be given to patients who have taken disulfiram in the past two weeks.

Special physiological situations

Always consult your doctor or pharmacist before taking any medicine during pregnancy or lactation.

Pregnancy and lactation:

Secnidazole should not be administered during pregnancy, especially during the first trimester. Secnidazole reaches in breast milk similar concentration to that of maternal blood, so it must not be administered to nursing mothers.


Not to administer to children under 2 years.


No special precautions are required for reason of age.

Driving and using machines

No adverse effects have been observed. However, in the event that appears dizziness or other adverse effects that could prevent you to carry out these activities, avoid driving and the use of potentially hazardous machinery.

Consult your doctor or pharmacist before taking any medicine.


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