Hi If that's the case go for injectable vit d3 for 2 weeks per week and go for oral intake per week and then maintain with dairy products and sun exposure with healthy diet.

Yes u  an use it in short term basis, along with u can increase ur vit d foods and sunlight exposure,  bcz sunshine is best natural source for vit d. Fir better understanding of vid d deficiency can consult with dietician/Nutritionist/doctor.

Please ask me directly.

Yeah. It is good. Also better to add some natural food stuff to increase the absorption level so body can absorb it naturally and boost up metabolism rate

Yes it's ok to take it once in a week .

Gud after afternoon pls try to have a healthy food habits with lifestyle changes like exercise daily for 30mins,proper sleep in night minimum of 6 hrs reduce stress if any by doing yoga or meditation for 15 to 20 mins along with that he can take medicine by consulting a good physician for dosage recommendation n duration to use.

Hello He can take the recommended dosage for 12 weeks and then repeat blood test and change the course accordingly. Exposure to morning sunlight for 15 minutes will be helpful too

its ok to take once a week for 8 week and then once a month as maintainance dose,