Some drugs have a effect when combined: the expected effects of each drug taken alone are multiplied or sped up.

Some medicines have a reduced effect when combined: the expected effects of each medicine taken alone are multiplied or accelerated.

Explanation:

Although in some cases the effects of combination drugs are beneficial, it is common for drug interactions to tend to be harmful, often diminishing the effect of drugs. For this reason, the combination of drugs can only be done after medical advice, because in addition to reducing the effects of drugs, the combination of two drugs can even eliminate the effect of the drug or cause health problems.

In this case we can conclude that some medicines have a reduced effect when combined: the expected effects of each medicine taken alone are multiplied or accelerated.

answer; i do believe the correct answer is (25) times faster;

which ever one is showing doing the same exercise in time intervals such as 30 seconds or a minute several times.