Yes there is no side effect to a normal person. But you should consult directly to us or any physician also for all your family members so that one can prescribe keeping in mind all the details and diagnosis. As you need to provide all the details of you family members like age, height, weight other diagnosis, diet schedule etc.
There are many natural sources of
vitamin C, so you can take them also. I would suggest you to go for natural sources first.
Next Steps
Consult directly- https://www.practo.com/ghaziabad/therapist/esha-singhal-1-dietitian-nutritionist
Health Tips
Vitamin C rich foods- citrus fruits like orange, lime, lemon, tomatoes, amla, guavas, kiwi , papaya and many more.