The Story
Kokando Byurakku A is a Japanese OTC stimulant laxative containing bisacodyl, formulated as small sugar-coated tablets that allow flexible dosing. The 400-tablet bottle is the large family size and has been a Japanese drugstore staple for decades, distributed by Kokando Pharmaceutical.
At a glance
- Best for: occasional, short-term relief of constipation in adults
- Active ingredient: bisacodyl (a stimulant laxative)
- Format: small sugar-coated tablets, 400 per bottle
- Origin: Kokando Pharmaceutical Co., Ltd., Japan — imported direct
- Best paired with: adequate water intake and dietary fibre. See our Japanese OTC medicine collection
Why we stock Kokando Byurakku A
This is one of the products Hong Kong customers ask us for by name after Japan trips. We stock it because the small tablet size allows precise dosing — you can start at the lowest effective dose (often 1 tablet) and adjust upward only if needed, rather than the all-or-nothing approach of larger laxative pills. Every bottle ships from Kokando's Japanese distribution with original Japanese-language labelling and PMDA-compliant packaging.
How to use
- Start with the lowest effective dose. The Japanese label suggests 2–3 tablets for adults; many users find 1 tablet sufficient.
- Take at bedtime with water. Bisacodyl typically acts 6–12 hours after ingestion — taking it at night usually produces a morning result.
- Swallow tablets whole — do not crush or chew the enteric coating, which is designed to bypass stomach acid.
- Drink plenty of water throughout the day to support normal bowel function.
Important: stimulant laxatives are for occasional, short-term use (no more than 7 consecutive days). Chronic use can lead to dependence and reduce normal bowel function. If constipation persists more than a week or recurs frequently, see a doctor.
Active & inactive ingredients
- Active: bisacodyl, 5mg per tablet
- Other ingredients: lactose, crystalline cellulose, sucrose, talc, gum arabic, carnauba wax, food colourings (per Japanese label)
- Contains: lactose and sucrose — not suitable for severe lactose intolerance or galactosemia
Kokando vs Senokot (senna laxative)
Both are stimulant laxatives, but they work through different actives. Kokando Byurakku A uses bisacodyl, which acts more directly on the bowel wall and typically produces a result within 6–12 hours. Senokot uses senna, a plant-derived anthraquinone that acts more gradually (8–24 hours). Bisacodyl is often described as "stronger and faster"; senna as "gentler." Neither should be used long-term. For chronic constipation, an osmotic laxative like polyethylene glycol or dietary changes are safer first-line options.
FAQ
Is this authentic Japanese Kokando? Yes. We import direct from Kokando's Japanese distribution. Every bottle ships with original Japanese-language labelling and PMDA registration markings.
How many tablets should I take? Start with the lowest dose — often 1 tablet for first-time users, 2–3 for adults familiar with bisacodyl. Don't exceed 6 tablets per day.
Can I take this every day? No. Stimulant laxatives are for occasional use, no more than 7 consecutive days. Daily long-term use can reduce normal bowel function and create dependence.
Is it safe during pregnancy? Pregnant and breastfeeding women should consult a doctor before using any stimulant laxative.
How long until I see a result? Typically 6–12 hours. Taking the tablets at bedtime usually produces a morning result.
What if I get cramps? Mild cramping is common with stimulant laxatives. Reduce the dose next time, or switch to a gentler osmotic laxative. Severe pain warrants a doctor's visit.
Manufacturer information
Manufactured by Kokando Pharmaceutical Co., Ltd., Japan. Registered under Japan's Designated Class 2 OTC medicine category. This product is not intended to diagnose, treat or cure any disease. Always read the label. If symptoms persist, consult a healthcare professional.

Details & Craftsmanship
Every detail has been carefully considered to bring you the perfect product.

Details & Craftsmanship
Every detail has been carefully considered to bring you the perfect product.
Description
Kokando Byurakku A is a Japanese OTC stimulant laxative containing bisacodyl, formulated as small sugar-coated tablets that allow flexible dosing. The 400-tablet bottle is the large family size and has been a Japanese drugstore staple for decades, distributed by Kokando Pharmaceutical.
At a glance
- Best for: occasional, short-term relief of constipation in adults
- Active ingredient: bisacodyl (a stimulant laxative)
- Format: small sugar-coated tablets, 400 per bottle
- Origin: Kokando Pharmaceutical Co., Ltd., Japan — imported direct
- Best paired with: adequate water intake and dietary fibre. See our Japanese OTC medicine collection
Why we stock Kokando Byurakku A
This is one of the products Hong Kong customers ask us for by name after Japan trips. We stock it because the small tablet size allows precise dosing — you can start at the lowest effective dose (often 1 tablet) and adjust upward only if needed, rather than the all-or-nothing approach of larger laxative pills. Every bottle ships from Kokando's Japanese distribution with original Japanese-language labelling and PMDA-compliant packaging.
How to use
- Start with the lowest effective dose. The Japanese label suggests 2–3 tablets for adults; many users find 1 tablet sufficient.
- Take at bedtime with water. Bisacodyl typically acts 6–12 hours after ingestion — taking it at night usually produces a morning result.
- Swallow tablets whole — do not crush or chew the enteric coating, which is designed to bypass stomach acid.
- Drink plenty of water throughout the day to support normal bowel function.
Important: stimulant laxatives are for occasional, short-term use (no more than 7 consecutive days). Chronic use can lead to dependence and reduce normal bowel function. If constipation persists more than a week or recurs frequently, see a doctor.
Active & inactive ingredients
- Active: bisacodyl, 5mg per tablet
- Other ingredients: lactose, crystalline cellulose, sucrose, talc, gum arabic, carnauba wax, food colourings (per Japanese label)
- Contains: lactose and sucrose — not suitable for severe lactose intolerance or galactosemia
Kokando vs Senokot (senna laxative)
Both are stimulant laxatives, but they work through different actives. Kokando Byurakku A uses bisacodyl, which acts more directly on the bowel wall and typically produces a result within 6–12 hours. Senokot uses senna, a plant-derived anthraquinone that acts more gradually (8–24 hours). Bisacodyl is often described as "stronger and faster"; senna as "gentler." Neither should be used long-term. For chronic constipation, an osmotic laxative like polyethylene glycol or dietary changes are safer first-line options.
FAQ
Is this authentic Japanese Kokando? Yes. We import direct from Kokando's Japanese distribution. Every bottle ships with original Japanese-language labelling and PMDA registration markings.
How many tablets should I take? Start with the lowest dose — often 1 tablet for first-time users, 2–3 for adults familiar with bisacodyl. Don't exceed 6 tablets per day.
Can I take this every day? No. Stimulant laxatives are for occasional use, no more than 7 consecutive days. Daily long-term use can reduce normal bowel function and create dependence.
Is it safe during pregnancy? Pregnant and breastfeeding women should consult a doctor before using any stimulant laxative.
How long until I see a result? Typically 6–12 hours. Taking the tablets at bedtime usually produces a morning result.
What if I get cramps? Mild cramping is common with stimulant laxatives. Reduce the dose next time, or switch to a gentler osmotic laxative. Severe pain warrants a doctor's visit.
Manufacturer information
Manufactured by Kokando Pharmaceutical Co., Ltd., Japan. Registered under Japan's Designated Class 2 OTC medicine category. This product is not intended to diagnose, treat or cure any disease. Always read the label. If symptoms persist, consult a healthcare professional.























