Dapagliflozin 10mg + sertraline, stopped 5-HTP, walk + vitamin D check (16 wks update): Summary from a 47-year-old with type 2 diabetes, early CKD (UACR 85 mg/g), sleep trouble,... — what worked for others here?
Summary from a 47-year-old with type 2 diabetes, early CKD (UACR 85 mg/g), sleep trouble, and acne on tretinoin. Meds: dapagliflozin 10 mg at 8 a.m., metformin 500 mg twice daily, and sertraline 50 mg. I had started 5-HTP 100 mg at night for sleep, but my pharmacist flagged the risk of excess serotonin with sertraline, so I stopped it and my prescriber reviewed my sleep plan instead. What helped: a 15-minute walk after dinner, ending at least 2 hours before bed, and a fixed wake time. My 25-OH vitamin D was 19 ng/mL, so I took 1,000-2,000 IU D3 daily per clinician advice and rechecked at week 12 (31 ng/mL). I used tretinoin 0.025% every other night with morning sunscreen. Results: sleep onset improved from about 60 to 30 minutes, A1c went from 7.4% to 6.8%, and UACR fell to 52 mg/g.
The sertraline label and FDA guidance warn that serotonergic agents can raise the risk of serotonin syndrome, and 5-HTP is a direct serotonin precursor. NIH ODS lists 4,000 IU/day as the tolerable upper intake level for vitamin D in adults, and 20 ng/mL is commonly used as the adequacy cutoff.