Hello. You need to overlap them for 6-8 weeks to successfully transition. Start Reta at .5, increase every couple of weeks until you get to 2.5. At the same Time drop your tirz down weekly until stopped at week 7-8. If you need it after quitting tirz you can add .25 mg cagr three days after Reta dose. You may not need it and you can drop it after Reta dose is high enough.

However much you want to. You should use AI (ChatGPT or Gemini) or a pep calculator for this. Here is example table for 140mg. 140mg GLP Vial 2mL BAC - 1mg = 1.5 units - 2mg = 3 units - 3mg = 4.5 units - 4mg = 6 units - 5mg = 7 units - 6mg = 8.5 units - 8mg = 11.5 units - 10mg = 14.5 units 3mL BAC - 1mg = 2 units - 2mg = 4.5 units - 3mg = 6.5 units - 4mg = 8.5 units - 5mg = 10.5 units - 6mg = 13 units - 8mg = 17 units - 10mg = 21.5 units 4mL BAC - 1mg = 3 units - 2mg = 6 units - 3mg = 8.5 units - 4mg = 11.5 units - 5mg = 14.5 units - 6mg = 17 units - 8mg = 23 units - 10mg = 28.5 units 5mL BAC - 1mg = 3.5 units - 2mg = 7 units - 3mg = 10.5 units - 4mg = 14.5 units - 5mg = 18 units - 6mg = 21.5 units - 8mg = 28.5 units - 10mg = 36 units Easy rule: If you’re using 5mL BAC, every unit is about 0.28mg, so: - 10 units ≈ 2.8mg - 15 units ≈ 4.2mg - 20 units ≈ 5.6mg - 25 units ≈ 7mg - 30 units ≈ 8.4mg - That 5mL dilution is usually the easiest for people to dose consistently.