slow-acting

But some of these compounds are slow-acting -- and all require repeated treatments and a coordinated, no-holds-barred attack to rid every nook and cranny of the infested household of the vampiric pests.

Bill Chameides: Is Propoxur the Way to Not Let the Bedbugs Bite? Bill Chameides 2011

But the bunged-up feeling is caused by other chemicals, so steroid sprays, ideally in combination with a slow-acting antihistamine, are best.

The inside track on hay fever 2011

Its effect on me was slow-acting—like radiation poisoning of the soul.

How the End Begins Ron Rosenbaum 2011

Could they secretly shoot me with a miniature, slow-acting poison dart?

Ray Nagin Book: Former New Orleans Mayor Worried CIA Would Shoot Him With Poison Dart 2011

Its effect on me was slow-acting—like radiation poisoning of the soul.

How the End Begins Ron Rosenbaum 2011

In a knowledge economy, such stagnation is a slow-acting recipe for obsolescence.

A Digital Promise to Our Nation's Children 2011

So I say that literature is a slow-acting poison, because a person will become infected when he or she is unable to defend himself against this infection.

Great voices of science fiction 2011

Younger members generally have less patience than their more seasoned colleagues and have already been pushing for the slow-acting chamber to pick up the pace.

A new record for Senate retirements 2011

Unlike their counterparts from Egypt, Vietnam and China, whose governments quickly stepped in to bring them home, Bangladeshis complained of slow-acting officials.

Tent camp, airlifts to help Libya refugees 2011

Could they secretly shoot me with a miniature, slow-acting poison dart?

Ray Nagin Book: Former New Orleans Mayor Worried CIA Would Shoot Him With Poison Dart 2011