The phrase "a palliative effect" is correct and usable in written English.
It can be used when discussing the alleviation of symptoms or discomfort without curing the underlying condition, often in medical or therapeutic contexts.
Example: "The medication provided a palliative effect, helping to ease the patient's pain even though it did not address the root cause of the illness."
Alternatives: "soothing effect" or "relieving effect".
In this environment, Skip's laid-back demeanour, his nearly inaudible jokes, his uniform of T-shirts and jeans, his consummate just-a-nice-dudeness – the Coens joke that Lievsay was part of the inspiration for Lebowski's The Dude – has a palliative effect.
The move seemed to have a palliative effect on lawmakers, diffusing any need for new regulations to compel airlines to approach weather-related delays more humanely.
Hays remarked in 1932: Hays and others, such as Samuel Goldwyn, obviously felt that motion pictures presented a form of escapism that served a palliative effect on American moviegoers.
Social support had a palliative effect and altered emotional responses and some aspects of attitudinal responses.
On the other hand, estrogen has a palliative effect on prostate cancer.
Ending this part of the focus group, despite the generally positive assessments, most of the GPs insisted that these drugs had only a palliative effect (Quotes 12 & 13).
Has the proliferation of medical Web sites on the Internet had any palliative effect, by giving patients information that might relieve worries?
However, 5-FU given as a continuous infusion of 300 mg m−2 (Hansen et al, 1991) showed a significant palliative effect.
Although the survival benefit of TACE treatment has been proved in two randomized clinical trials [ 5, 6], TACE has a primarily palliative effect and does not achieve complete tumor necrosis therefore tumor relapse after TACE is universal [ 7].
Green tea extracts may induce a mild neuroprotective or palliative effect in a certain period time of sensory oxaliplatin-induced PN.
The series had an all-encompassing impact on me, where, to this day, hearing its theme song has a sort of palliative effect.
