If light sensitive parenteral products stored in amber color bottles,is it necessary to keep them protected from light in further stages? becoz it is already protected in amber color bottle

Please answer in regulatory aspects

I don’t think it shall be required if it is packed in light protective amber bottles.

Dear Sir,

My Question is regarding syrup filled bottle after opening,how many days a person used

stability study of opening of syrup bottle

If required perform in use stability and I don’t think this will impact the product quality.

Please suggest any Guidelines because so many clients asking for in use stability study.what is Temp and humidity requirements