Vitamin B12 The stomach acids that aid in the natural breakdown of food also break down vitamin B12 pill supplements, the body will only absorb a small amount when ingested orally
Most common causes of the discolouration include: Medications amino-salicyclic acid derivatives mesalazine/paraaminosalycylic acid/sulfasalazine doxorubicin , hydroxocobalamin , ibuprofen, phenothiazines, phenolphthalein, propofol , rifampicin/rifampin Dietary ingestants beeturia , rhubarb, blackberries, food dyes Metabolic abnormalities porphyria , urate crystals Hydroxocobalamin Early features of cyanide poisoning include nausea, vomiting, headache, dyspnoea, tachypnoea, hypertension, tachycardia, collapse and seizures
Observing your progress helps determine when to conclude treatment
Rarely, high dose supplements or injections of Vitamin B12 cause diarrhoea, itching, blood clotting and allergic reactions