Sir, ypu can take vit D3 supplementation once a week gor next 4 weeks and capsule becasue daily for next 15 to 21 days. I would advise you to limit tab limcee upto maximum 2 weeks.  Take plenty of water with vit d3, atleast 10 glasses per day. Yes, these pills have their side effects. It is not advisable to take them for longer duration. VIT D3 excess can cause consitipation and renal stones. Limcee had vitamine C, which again can cause oxalate containing fenal stones. Also it affects your skin in long term.

There's no harm in the intake of vitamin C , Vitamin D3, Becosules tablets for a shorter duration. These can help in augmenting the immunity of an individual which depends on the absorption of the vitamins and metabolism in each individual and which may vary in different people. But overall these supplements will prevent the deficiency  of the same supplements in the body and thereby keep an individual immune than a deficient person

Becosule and limcee contains water soluble vitamins, hence continuous intake won't cause any harm. Vit D3 can lead to problems like hypervitaminosis, if not taken in proper way.

Yes you can take.