Gastrointestinal effects lead: nausea, diarrhea, constipation, and vomiting, dose-dependent and clustered during escalation, mostly mild. Tirzepatide also produces a modest chronic heart-rate rise with a larger escalation-phase peak. Oral-contraceptive absorption can fall after starting and after each increase, so use backup or non-oral contraception for 4 weeks each time. What is known about concurrent metformin and tirzepatide use
Once you have that base level, document it and try to avoid anything adverse
When to seek medical advice Contact a GP promptly if symptoms are persistent, worsening or unexplained, especially if you have numbness, pins and needles, balance or walking problems, weakness, memory changes, breathlessness, palpitations or vision changes
Genet Mol Biol
Its key for those with severe deficiencies or long-term symptoms
For those with neuropsychiatric symptoms from low B12, these findings offer hope and a clear path to getting better