Backed by Y Combinator · S26
I built Armbrust USA to fix a broken supply chain. RonanRx fixes how GLP-1s get prescribed: personalized tirzepatide, dosed by a real doctor for you.
Personalized to your biology
Works on both gut hormones that quiet hunger, taken once weekly at a dose set by a licensed physician.
Then starting at $117/month, depending on prescribed dose.
Your current prescribed dose
The constant background negotiation about food gets softer. Most people describe it as the first change.
It slows how fast your stomach empties, so a normal meal keeps you satisfied longer.
It helps insulin move sugar out of your blood more smoothly, so hunger and energy feel steadier.
It activates both gut hormones you release after a meal, which is why it tends to do more than medicines that only hit GLP-1.
What this is
Tirzepatide is a single molecule that activates two gut hormones, GIP and GLP-1, at the same time. A physician sets your starting dose from your history and adjusts it at your pace, not a fixed ladder everyone walks the same way. If you have taken a GLP-1 before, you start where you are, not back at the beginning.
Founders Special · code FOUNDERS78
Personalized to your biology. A licensed physician sets your dose, a licensed US pharmacy compounds it, and it ships to your door. Your founders launch price is $78 for your first month of medicine, 67% off.
Founders pricing runs through YC Demo Day. It ends Thursday.
A physician reviews your history first. If it isn't right for you, you won't be charged. Cancel anytime.
Founders launch price with code FOUNDERS78: $78 for your first 30 days of medicine at 2.5 mg (reg. $195), then starting at $117/month depending on your prescribed dose. Physician care is $39/month, first month free. Medication is prescribed at a licensed physician's discretion and billed separately. New patients only.