why is my tirzepatide not working Headache while on tirzepatide? You're imagining it — and there could be a reason behind it, including dehydration or low blood sugar 🧠 While it's not a typical side effect, some 7 Reasons You Aren't Losing

Because combined oral contraceptive pills (and many progestin-only pills) are absorbed in the gut, anything that disrupts or slows that down can block the birth control pills from working

Combining tirzepatide with insulin or sulfonylureas is a distinct clinical scenario that raises hypoglycemia risk (see Safety) and is not a stack in the enhancement sense it is a drug interaction requiring clinical supervision

In the 60s, patients in the UK received one injection a month

GLP-1 Agonist FAQs What are GLP-1 agonists and how do they work

This selectivity is crucial for understanding the therapeutic effects and potential limitations of single-receptor activation compared to Retatrutides multi-receptor approach

Accessed on February 6, 2026 at Saxenda [package insert]