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Secnidazole: uses, side effects & brands
Secnidazole is a single-dose option for some protozoal and vaginal infections. It belongs to the Antiprotozoal & other antimicrobial group. These treat protozoal gut infections (like amoebiasis and giardia) and some other infections.
Drug type — dosing is set by your doctor
| Measure | Range |
|---|---|
| Drug class | Antiprotozoal & other antimicrobial |
| Type | Prescription |
| Dose | Individual — ask your doctor or pharmacist |
What it is used for
- Treats bacterial vaginosis
- Treats trichomoniasis
- Treats amoebiasis and giardiasis
Common brand names
- India: Secnil, Synidaz
- Worldwide: Solosec
Common side effects
- Metallic taste
- Nausea or stomach upset
- Headache
- Vaginal yeast infection (thrush) after treatment
Before taking it — precautions
- Avoid alcohol during and for a few days after treatment
- Tell your doctor if you are pregnant or breastfeeding
- Tell your doctor about blood disorders or nerve problems
When to see a doctor urgently
- Severe rash or allergic swelling (urgent)
- Numbness, tingling or fits
- Severe diarrhoea
Frequently asked questions
Is it really a single-dose treatment?
For many uses it is given as a one-time course, which helps people complete treatment; follow your doctor's instructions.
Can I drink alcohol?
No. Avoid alcohol for a few days, as it can cause nausea, flushing and vomiting.
Should my partner be treated?
For trichomoniasis, partners usually need treatment too.
Explore more
Sources & further reading
- World Health Organization (WHO)
- MedlinePlus — U.S. National Library of Medicine
- Ministry of Health & Family Welfare, India
- Indian Council of Medical Research (ICMR)
Reviewed by Dr. Sanjay Anbu, MBBS. MedDroid is an AI medical assistant and can make mistakes. It provides general health information, not a diagnosis or medical advice — always consult a qualified clinician. In an emergency, contact your local emergency number immediately.