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Posted by lloydarmbrust 7 hours ago

Launch HN: RonanRX (YC S26) – Personalized Peptides and GLP-1s

Hi HN,

I’m Lloyd, one of two founders of RonanRx (https://ronanrx.com/). We are building a vertically integrated pharmaceutical company with software for prescribing, telehealth, compounding, manufacturing, and delivery. We are starting with GLP-1s and peptides.

The path to RonanRx is fairly unconventional. During the pandemic, I built one of the largest mask manufacturing factories in the US. We could make a million masks in a day. We converted raw polypropylene pellets into finished pallets of masks.

I had a background in software from my YC W10 company, so we took a software approach to building our factory. We used machine learning and computer vision to optimize production. We also vertically integrated almost everything. It worked. We built an efficient manufacturing operation and grew the business to 50 million dollars in revenue. Then people actually stopped caring about masks. Fair enough.

Around the same time, I decided to try and lose the weight I had gained while building the factory. I ate nothing but chicken for six months. While this diet got some results, I plateaued. My doctor suggested tirzepatide, a GLP-1 medication.

For me, losing weight was only the beginning. "Food noise" was gone. I showed less interest in other compulsive behavior. I stopped scrolling Instagram and quit biting my nails. But that was just the beginning. I was born with a congenital heart defect called aortic stenosis. My whole life doctors told me I'd need open heart surgery in my 40s (I am 45 now). After just 18 months using tirzepatide, my cardiologist’s began to think (and still thinks) my surgery could be pushed back until I am 70 or 80.

This was all happening when I was deciding what to work on next. I wanted to keep working on manufacturing. I didn't want to build another product that could be replicated by a frontier model. Pharmaceutical manufacturing was the best combination of digital, physical, biological, and regulatory infrastructure I could find. The thing that bothered me was how disconnected all of the pieces were: telehealth, EHR, prescriptions, dispensing software, production, shipping. No one company has it all.

GLP-1s come in a handful of predefined doses, but patients obviously aren't standardized: they respond differently, lose weight at different rates, experience different side effects, and may need very different doses. Compounding pharmacies can fill customized prescriptions, but they are not built like software companies. Workflows are manual, fragmented, and disconnected from the patient’s data. It's our goal to connect those pieces with RonanRx.

Patients either come to us directly or are referred by a physician. Once a patient is in our system, we collect medical records, current meds, labs, and data from wearables. Our software follows the prescription through drug formulation, compounding, quality testing, and drug dispensing and distribution.

The most interesting feature is the feedback loop. As the patient is undergoing treatment, their response becomes data that can be used by their doctor to modify the treatment. We keep the doctor in the feedback loop.

We make money by selling drugs we manufacture. Because people can buy directly from us, their price is usually 3x-10x more affordable. We can do this because we start at the molecule and own the entire stack from manufacturing through prescribing, dispensing, and delivery, instead of paying a chain of middlemen at every step.

We are beginning with GLP-1s and peptides since this was where I personally experienced the issue; however, we are more interested in the potential of patient-specific pharmaceutical manufacturing.

We would love your feedback, especially if you have built pharmacy, manufacturing, clinical infrastructure, EHRs, or any other regulated software. There are a lot of assumptions in this model that should be tested.

41 points | 53 commentspage 2
andsoitis 5 hours ago|
I'm a big fan of, and customer of AgelessRx - https://agelessrx.com

Good luck with your venture!

lloydarmbrust 4 hours ago|
This is a really beautiful site. Thank you for sharing it.

I think the only thing that separates us is that we manufacture the drugs and probably own more of the supply chain than they do. But they're doing a much better job on the front end.

andsoitis 4 hours ago||
You're welcome.

Yeah, they are pretty polished. But I've been with them for a few years and in the beginning their site was very much not polished, however, their products, service, and focus were a beacon.

nyorai 5 hours ago||
Really loved this approach. I want to ask what peps are you starting off with and how would this approach work competing with grey market ROU peps?

Also is there a way to contact you? I have some personal questions as a fellow pep user.

nwmck 3 hours ago||
I'm curious, when you say you're creating vertical integration—are you tackling GMP manufacturing and fill finish as well?
lloydarmbrust 1 hour ago|
Yes. I've done it before with medical devices. Pharma is surprisingly similar, but there's more testing.
arjie 5 hours ago||
Familiar name. Same guy who made the masks during COVID-19?
derektank 5 hours ago||
Second paragraph, “During the pandemic, I built one of the largest mask manufacturing factories in the US”
arjie 5 hours ago||
Haha, entirely my fault but the default font greys out the text so I always just click through to the site instead of reading the Launch HN / Show HN copy. Regardless, I will take my well-deserved brickbats.
defrost 5 hours ago|||
Second paragraph:

  The path to RonanRx is fairly unconventional. During the pandemic, I built one of the largest mask manufacturing factories in the US. We could make a million masks in a day. We converted raw polypropylene pellets into finished pallets of masks.
lloydarmbrust 5 hours ago||
Yeah. Armbrust Inc. It's me.
protocolture 2 hours ago||
>so we took a software approach to building our factory.

I wouldnt step inside the building, its probably going to fall down every other sprint for the first few years.

lloydarmbrust 2 hours ago|
I see what you did there, and I approve this joke.
Reubend 7 hours ago||
You manufacture the drugs yourself? That's impressive, and it feels like an interesting company.

Your website sucks though. We can tell you vibe coded it quickly and didn't put much thought into it.

lloydarmbrust 6 hours ago|
Yes, we incorporated the business 10 weeks ago, and we've been focusing everything on the infrastructure of the actual product people are getting.

These messages are very helpful, though, to help motivate me to get our team to fix this, so I do appreciate it.

mohamedkoubaa 6 hours ago||
I think you should focus on the fundamentals, this kind of feedback is inevitable and I'm sure you anticipated it anyways.
lloydarmbrust 6 hours ago||
Building a startup, everything is important, but you do have to stack rank. This is getting to the point where it's probably the most important thing. And it won't take that long to fix.
didgeoridoo 7 hours ago||
Please have a human rewrite your site copy. Literally every second sentence is a Claudish rhetorical contrastive. Maybe shallow/unfair, but especially when dealing with something medical I’d love to know that it’s not slop all the way down.
andy99 5 hours ago||
It’s funny, it’s obviously understandable why someone would vibe code a placeholder website, we’ve all probably done it. But I’m realizing a basic unstyled html thing with minimal copy is probably a better signal at this point for startups, it makes it clear you are still working on it rather than giving up the impression you might think your vibeslop is the finished product.
lloydarmbrust 7 hours ago||
Fair criticism. It is AI slop all the way down. The only thing we focused on was the clinical aspects of the onboarding and the technical ability to be able to legally write a prescription and make and ship drugs, which was very complicated. We were able to accomplish this in less than 10 weeks. But I have not had time to go through all the marketing, and I apologize.
tristanMatthias 7 hours ago||
Ironically even this comment feels AI generated :/
lloydarmbrust 6 hours ago||
My wife tells me all the time I sound like AI. I blame my childhood.
mapremap 5 hours ago||
I blame your fine-tuning.
lloydarmbrust 5 hours ago||
She’s been doing supervised fine-tuning since 2017.
faangguyindia 3 hours ago|
>Around the same time, I decided to try and lose the weight I had gained while building the factory. I ate nothing but chicken for six months. While this diet got some results, I plateaued. My doctor suggested tirzepatide, a GLP-1 medication.

This is a poor diet, where are the carbs and fats? So you dieted badly, and your conclusion from this is to use GLP drugs?

Did you ever try a moderate deficit over long periods of time?

We run a public benefit app called macrocodex which is completely free, no paywall, no subscription, and it produces guaranteed weight loss or gain within 2 to 4 weeks.

Most people never see a weight loss plateau; you can read the reviews if you are skeptical of the claims.

Problem with GLP-1 agonists is that it's very easy for a person to crash their diet.

In GLP-1s drug use, the primary cause of weight loss by reduction in appetite/desire to eat -> you eat less -> calorie deficit -> weight loss

Deficit doesn't really go away! So it's funny when people say "calorie deficit doesn't work but GLP drugs do", I wonder if they believe GLP-1 have secret fat melting property or something.

lloydarmbrust 2 hours ago|
Have you tried a GLP-1?
faangguyindia 1 hour ago||
GLPs have lower effectiveness for the vast majority of overweight and fat people than macrocodex. You can look up GLP non-responder data; furthermore, many people use GLP-1 in a knee-jerk fashion, crashing their nutrition, which may result in loss of lean mass, bile issues, and gallbladder stone risks.

And i am not the only one who is saying this, look at this: https://www.reddit.com/r/tirzepatidecompound/comments/1omfgx...

If GLP-1 are effective, then why do people who are using GLP-1 for some time need this guide (macrocodex's guide)?

Macrocodex has 16,000+ users and it's free, there are no ads so there is nothing to sell there.

Here you can see our GLP dosing protocol: https://macrocodex.app/knowledge/rethink/glp-1-agonists-dosi...

Our group has 2000+ people and macrocodex users beat GLP1 drug users by long shot.

You can find even more evidence by searching for "macrocodex" reviews. Very simple and doesn't cost anything

lloydarmbrust 1 hour ago||
I'm just asking if you've ever used one.

I don't want to assume, but if you've used one, you would understand the benefits are far greater than weight loss.

bertylicious 3 minutes ago|||
What exactly are these benefits beyond weight loss?
faangguyindia 1 hour ago|||
Exercise, diet, being active, and having slightly above average lean mass and staying below 15% body fat as a male and below 24% for a female have a far bigger benefit than just shooting GLP drugs.

I don't need GLPs, but I've experimented with it for a short while, and I don't see any benefit other than appetite reduction, which I do not need as I have an active life.