l carnitine and levothyroxine interaction l-carnitine Can Support Energy Levels Exercise Recovery for Long COVID and ME/CFS Patients? L-Carnitine and Levothyroxine: A Critical – and it is recommended to discuss any supplemental regimen with a healthcare provider Frontiers | Selenium and thyroid

While Abreva is generally safe, like any medication, it can cause side effects

Furthermore, they found that, compared with nicotinamide riboside (NR) or NMN, NRH significantly surpassed their effects by causing increases in NAD + concentrations of three to ten times in a broad range of mammalian cells cultures

A reasonable monitoring schedule: IGF-1 at baseline, then every 6 to 12 months Fasting glucose and HbA1c at the same intervals TSH and free T4 annually An honest annual reassessment of clinical goals (are you still getting what you wanted, or just continuing out of habit?) There's no published upper limit on the number of cycles

Injuries that took 8 weeks to heal may heal in 5-6 weeks

syncope is discussed here: Movement disorders: Paroxysmal sympathetic hyperactivity (PSH)