I was feeling unwell 2 weeks before my last B12 jab, so much so I snuck in a week early without being queried this time. However I didn’t notice the usual post injection improvement. 2 weeks later I was back as the GP feeling even more unwell. I am now on the antibiotic Erythromycin.
Anyone know what impact this antibiotic may have on B12 levels. Has my injection been wasted and is it worth using sublinguals whilst on antibiotics or better to wait till I have finished the course.
Crawling back under the duvet now.