If you can get some from your vet, try to buy a bottle, it's great insurance. And, it only takes a little bit for young kids (what breed? I forgot). And, you only give the injectable once! Mine says 3ml/100lbs or very small kids (mine are around 2-3lbs) 1/4ml SQ.
I'm not sure about dosage on the gel. Someone here will have it.
Be calm, they will resolve this issue before long, supportive care is what they need (after the correct dose). Be sure they can nurse from mom, you may have to support them if they need it. Really, it looks worse then it is. I purchased a doeling last year that should have had Bo-Se at birth, but didn't get it. We gave her a dose when we got her home and within 3-4 days she was perfectly straight.