It can be administered intravenously or intramuscularly. Pentamidine is completely absorbed when given intravenously or intramuscularly. Systemic antifungals are administered orally or intravenously. In medical settings, ketamine is usually injected intravenously or intramuscularly. They may be administered orally, intravenously or topically. Benzodiazepines have been abused orally and intravenously. This can occur either orally or intravenously. It is administered intravenously or orally (per mouth). Water can be replaced orally or intravenously. Caffeine, given either orally or intravenously, often offers symptomatic relief. These are injected in relatively small doses, compared to when they are injected intravenously. PFCs are naturally hydrophobic and need to be emulsified to be injected intravenously. Intravenously administered penicillin is the treatment of choice. Sodium amytal is a barbiturate that puts people in a hypnotic state when injected intravenously. ALA accumulates more rapidly in comparison to other intravenously administered sensitisers.