Tender For supply of injection bupivacaine hcl 0.5% hyper for spinal anesthesia in 4ml amp/ vial contains anhydrous bupivacaine hcl ip 5mg/ml which is made hyperbaric with anhydrous dextrose ip 80mg/ml and should best suitable for spinal/combined spinal epidural/neuraxial anesthesia., without preservativ es, similar to anawin heavy 4 ml. product should be in railway board approved product list. ]