Boric Acid Suppositories

Boric acid vaginal suppositories are compounded capsules containing boric acid powder, intended for intravaginal use. They may be prescribed as part of a care plan for recurrent vaginal symptoms when the prescriber determines that boric acid is appropriate.

Common prescribed strengths include 300 mg and 600 mg. The strength, quantity, and schedule should follow the prescription label.

• Recurrent vulvovaginal candidiasis (yeast infections), especially when standard antifungal treatments have not been effective
• Bacterial vaginosis (BV)
• Non-albicans yeast infections that do not respond to conventional antifungals

Always follow your doctor's specific instructions. The typical regimen is:

1. Insert one suppository high into the vagina at bedtime
2. Treatment is usually once daily for 7–14 days for acute infections
3. Maintenance therapy (2–3 times per week) may be recommended for recurrent infections

Important:

• For vaginal use only — do NOT take orally. Boric acid is toxic if swallowed.
• Do NOT use if you are pregnant
• Avoid sexual intercourse during treatment
• A panty liner is recommended as some discharge may occur

Common side effects are local:

• Mild burning or irritation upon insertion
• Watery vaginal discharge (a panty liner helps)
• Occasionally, redness or a gritty feeling

What about nausea or diarrhea? Used vaginally as directed, very little boric acid is absorbed into the body, so whole-body effects like nausea or diarrhea are not expected from normal use. Stomach symptoms ARE hallmark signs of boric acid being swallowed — if a suppository is ever ingested, contact a poison centre or seek medical care right away. If you feel unwell during vaginal treatment, mention it to the pharmacist or your prescriber rather than assuming it is the suppositories.

Precautions:

• Boric acid is toxic if ingested — for vaginal use only; keep out of reach of children and pets, and store clearly separated from oral capsules (they can look similar)
• Do not use if pregnant or trying to conceive
• Avoid receiving oral sex during treatment, and do not rely on condoms — boric acid can damage latex
• Discontinue use and contact your doctor if irritation worsens
• Do not use on open wounds or broken skin

• Store at room temperature in a dry place
• Keep out of reach of children and pets
• Check the expiry date on the label