An adult female should weigh 3-4kg, an adult male should weigh 4-6kg.
Your albendazole is 200 mg per 5 ml, which = 40 mg per 1 ml (albendazole here in the US is 113.6 mg per ml, so ignore all US dose suggestions).
Using your 40 mg/ml albendazole the doses are:
100 gram dose is 0.05 ml
500 gram...
That looks like it could be blackhead. I hope you are giving the medications orally because it will not work if you're giving it in the water. Albendazole dose is 20 mg per kg of body weight.
If they aren't drinking and eating you will also have to tube fluids and food.