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Table 3 Recommended procedure for substitution of vitamins during total parenteral nutrition (personal communication Ramsauer and Vetter, Berlin, Germany).

From: Managing hyperemesis gravidarum: a multimodal challenge

Parenteral nutrition via peripheral venous access

Main infusion

Adjuvants (daily dose)

Speed of operation

500 mL glucose-infusion 5%

• 200 mg vitamin B1 (thiaminchloride),

• 200 mg vitamin B6 (pyridoxine),

• 200 μg vitamin B12 (cyanocobalamine),

• 2000 mg vitamin C (ascorbic acid)

50 mL/h

Parenteral nutrition via central venous access

Main infusion

Adjuvants (daily dose)

Speed of operation

500 mL glucose-infusion 40%

• 200 mg vitamin B1(thiaminchloride),

• 200 mg vitamin B6 (pyridoxine),

• 200 μg vitamin B12 (cyanocobalamine),

• 2000 mg vitamin C (ascorbic acid)

50 mL/h