US$ 26.97
do you need a prescription for vitamin b12 injections (Cyanocobalamin Injections) — Tagged "Vitamin B-12" — Mountainside Medical Do You Need A Prescription
Description
Combining 5-amino-1mq with powerful stimulants may produce unpredictable effects on heart rate, blood pressure, and nervous system function

Another recommends 500mcg

5-Amino-1MQ side effects and safety Reported side effects are mild and mostly anecdotal: occasional hives or allergic-type reactions, digestive upset, and headache

Draw back the plunger and fill the syringe with air equal to the prescribed dosage

Contraindications/Precautions Cyanocobalamin is contraindicated in those with hypersensitivity to cobalt moiety or cobalamin molecule due to the risk of anaphylaxis (9)

PMID: 24717514 View source Ulanovskaya OA, et al