Kelwin-D
Kelwin-D Calcium Supplement by WINLET is a dietary supplement enriched with Magnesium, 2 x 10 Tablets. It is used for pregnancy and lactation, osteoporosis, etc.
Package Contains: Each Kelwin-D package contains 20 tablets.
Composition/ Supplement Facts: 
Each tablet contains:
Calcium carbonate (USP) 500 mg
Vitamin D3 (USP) 400 IU
Magnesium (USP) 250 mg.
Dosage: Take 1–2 tablets daily, preferably with a meal or as directed by the health advisor.
Uses/ Indications: It is indicated for the following:
- Pregnancy & Lactation.
- Old Age.
- Osteoporosis.
- Fractures.
- Tooth Decay.
- Osteopenia.
Calcium: Builds and maintains strong bones.
Vitamin D3: Helps your body absorb the calcium.
Magnesium: Activates the Vitamin D and supports bone density.
Warning & Precautions:
High Calcium Levels: Avoid this if you have hypercalcemia (too much calcium in your blood) or hypercalciuria (too much calcium in your urine).
Heart Conditions: High doses of calcium can interact with certain heart medications (like digoxin).
Kidney Issues: If you have kidney disease or a history of kidney stones, calcium and magnesium can accumulate or worsen stones.
Check your medications: Calcium and magnesium can bind to certain medications (like antibiotics or thyroid drugs), making them less effective. It is usually best to separate them by at least two hours, but check with a pharmacist or doctor to be sure.
Side Effects: Like all medicines, Kelwin-D may cause some common side effects, such as:
- Constipation.
- Bloating.
- Gas (flatulence).
- Mild abdominal pain.
Taking the tablet with a meal usually prevents or lessens these issues.
Cautions: Keep out of the reach of children. Store at a cool & dry place.
Note: Not for treatment of any disease. This is an Alternative Medicine & Health OTC Product enlisted under Drug Act SRO(1) 2014 in accordance with DRAP Drug Act. (XXI) 2012. 
Manufacturer & Buy Online:
Kelwin-D Tablets are manufactured by: The Best Laboratories Pak.
This is the link to the manufacturer: https://www.facebook.com
It is not available online, but you can buy it from any nearby pharmacy. It is currently (2026) available at the retail price of around 750 rupees.
By: Urooj