The phrase "administered only when" is correct and usable in written English.
It can be used in contexts where a specific action or treatment is to be given under certain conditions or circumstances.
Example: "The medication should be administered only when the patient shows signs of distress."
Alternatives: "given solely when" or "provided exclusively when".
MELBOURNE, Fla .— To help ensure that medical radiation is safe, Medicare insists that certain highly technical cancer treatments be administered only when a patient's radiation oncologist is present or nearby.
Several drugs have been approved as second-line therapies for multiple myeloma (agents administered only when initial treatments have been determined to be ineffective); examples include pomalidomide, which modulates immune activity, and carfilzomib, which inhibits the degradation of certain proteins in cells and may thereby prevent further tumour growth.
Low molecular weight heparin was administered only when the limb was immobilized or when the patient was not allowed to walk.
In the most recent study, where PVI was used as part of an Enhanced Recovery protocol, fluids were administered only when the PVI exceeded 13%%, resulting in decreased intra-operative net fluid balance from 2733 to 848 ml [64].
A much more logical approach was stated in a recent review, namely, that fluids should be administered only when patients require augmentation of their perfusion and are also volume-responsive [58].
For example, drugs that will be administered only when a person is in danger of waking up, as determined by a small, portable EEG machine that might look like a headband.
Recent studies demonstrated that the cardioprotective effect of insulin against myocardial infarction occurred when insulin was administered only during reperfusion, but not when started prior to ischemia [ 9, 10].
Rescue of ATP levels could not be detected for any quinone when administered only once at the beginning of a 1-week treatment.
Moreover, U0126 did not affect the kinetics of acute respiratory responses to MPP+, and conferred protection even when administered only during the second week of toxicity.
When administered only during larval development, the drug RU486 itself had no effect on subsequent adult female life span, and a small negative effect on subsequent adult male life span (~-4%; Supplementary Table 1).
Dipterex was teratogenic after administration by gavage (t.i.d). at a dose level of 480 mg/kg-day to the CP rat on days 6 through 15 of gestation, but not when administered only on days 8 or 10 of gestation.
