Where can I buy syringes with caps to feed newborn bm if I can't breastfeed temporarily?

Have you tried checking the pharmacies located at the hospitals? I reckon they would sell it there since it is widely used in the hospital settings, especially for newborns. Alternatively, you can always order it online from amazon.com but maybe checking with the hospital pharmacy store will be a good bet?

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I believe Guardian has it. Try asking the pharmacist for the ones with caps if you can find them in the store.

I bought them from Guardian yesterday