Meanings of free placebo in English

The other half took the same number of drug- free placebo capsules.

Kids in those studies were treated with over-the-counter medicines, drug- free placebo pills or nothing.

On the other, they were given drug- free placebo pills.

The other half took a drug- free placebo pill.

In one arm of the trial, participants were randomly assigned to take either hormone therapy or a drug- free placebo.

They randomly assigned half of the participants to take vitamin D3 supplements every day, and the other half to take a vitamin- free placebo pill.

Each of those studies randomly assigned 1,825 babies younger than three months to receive probiotics, a bacteria- free placebo or no treatment.