I have not tested my vitamin B12. But because I don't eat much of fruits and vegetables and also stopped drinking milk due to irritable bowel, I had a concern whether I might have vitamin deficiency and physician prescribed becosules capsule for one month. I have taken becosules for 2 days now and today I am having a throat irritation and a mild dry cough and throat irritation making me feel like coughing. Can this be a side effect of becosules? Should I continue becosules? Earlier I had allergy to Dobical capsule ( calcium dobiselate) . A bit confused about whether to continue becosules or not. Hoping for suggestions. My heamoglobin is normal.