FAQ and Resources

Non-specific vaginitis/bacterial vaginosis is very common. It is even more common than yeast infections (Candida). It is believed to be the most common vaginal infection in women of reproductive age.

Many women who have non-specific vaginitis/bacterial vaginosis experience no symptoms. For others, the most common symptoms include a thin, milky, white or grayish vaginal discharge with an unpleasant fishy odour.

Non-specific vaginitis/bacterial vaginosis is associated with a drop in the number of protective bacteria (lactobacilli) and a subsequent overgrowth of harmful bacteria in the vagina.

You should not use Prevegyne^® if:

• you are hypersensitive to ascorbic acid or to any ingredient in the product. For a list of the ingredients in Prevegyne®, consult the Consumer Information leaflet.
• you are pregnant or breastfeeding

To find out if Prevegyne^® contains a specific ingredient or allergen, contact Duchesnay's Medical Information Service by phone (toll-free number 1 888 666-0611) or by email at This email address is being protected from spambots. You need JavaScript enabled to view it.

Although Prevegyne^® is a natural health product that is available without a prescription at your pharmacy counter, you should consult your doctor, pharmacist or other healthcare professional before taking this product in the following situations:

• you have never been diagnosed with bacterial vaginosis or are not sure of your diagnosis
• you have a vaginal yeast infection (Candidiasis)
• you are taking anticoagulants (blood thinners)
• you have hemolytic anemia (premature destruction of red blood cells)

When in doubt, you should consult your doctor, pharmacist or other healthcare professional before taking Prevegyne^®.

Prevegyne^® tablets are intended for vaginal use only and should not be swallowed.

If you have accidently swallow a Prevegyne^® tablet, we recommend that you contact your regional poison control centre to discuss your specific situation.The Canadian Association of Poison Control Centres can help you find the phone number of a poison control centre in your area: http://www.capcc.ca/

Prevegyne^® should be kept out of the reach and sight of children.

Prevegyne^® helps reduce/relieve symptoms of non-specific vaginitis/bacterial vaginosis. If you are uncertain of the type of infection you have, it is recommended that you consult your doctor, pharmacist or other healthcare professional before using Prevegyne^® to determine the cause of your symptoms and the appropriate treatment.

Prevegyne^® controlled-release vaginal tablets help to reduce/relieve symptoms of non-specific vaginitis/bacterial vaginosis by acidifying the vaginal flora, thus promoting the growth of protective bacteria (lactobacilli)and restoring normal vaginal pH and vaginal flora.

If, after six (6) days, you are still experiencing symptoms or if your symptoms worsen while using Prevegyne^®, please consult a healthcare professional.

The medicinal ingredient of Prevegyne^® is vitamin C (ascorbic acid).

Non-medicinal ingredients are polydimethylsiloxane-methyltrisiloxane-copolymer, lactose monohydrate, hydroxypropylmethylcellulose, magnesium stearate and isopropanol.

To find out if Prevegyne^® contains a specific ingredient or allergen, contact Duchesnay’s Medical Information Service. Toll-free number:1 888 666-0611 or by email at This email address is being protected from spambots. You need JavaScript enabled to view it.

Prevegyne^® is available at your pharmacy counter without prescription. If your pharmacist does not have Prevegyne^® in stock, he or she can order it from the pharmacy’s wholesaler.

The recommended dosage to help reduce/relieve symptoms of non-specific vaginitis/bacterial vaginosis is one (1) Prevegyne^® vaginal tablet per day. A six (6)-day course of treatment is recommended to restore physiological pH and normal vaginal flora. If, after six (6) days, you are still experiencing symptoms or if your symptoms worsen while using Prevegyne^®, please consult a healthcare professional.

There is no contraindication for the use of Prevegyne^® during menstruation. However, its use and effectiveness during this period specifically have not been studied. Please refer to your doctor, pharmacist or other healthcare professional for advice about using Prevegyne^® during your period.

To optimize contact time with the vaginal mucosa and minimize the chances of the tablets being displaced, it is recommended that tablets be inserted at bedtime. This will also help reduce vaginal leakage.

No interactions have been established with the intravaginal use of Prevegyne^®. However, if you are taking any form of medication (whether prescription or over-the-counter, including vitamins and natural/herbal products) and would like to use Prevegyne^®, we recommend that you discuss their concurrent use, possible interactions, and respective dosage schedules with your doctor, pharmacist or other healthcare professional.