The phrase "a more drastic effect" is correct and usable in written English.
It can be used when comparing the intensity or severity of effects in different situations or contexts.
Example: "The new policy is expected to have a more drastic effect on employee productivity than the previous one."
Alternatives: "a more severe impact" or "a more significant consequence".
The obtained data show in particular that angular inclusions have a more drastic effect on the densification kinetics than spherical ones.
The Congressional Budget Office, for example, which provided earlier estimates that suggest a more drastic effect on retirees, calculates that the Senate bill will result in more companies dropping coverage than the House version.
Dr. O'Rourke has developed a newer method of determining blood pressure in the heart, and he has found that ACE inhibitors and A.R.B.'s cause a more drastic effect in the heart -- an effect great enough, he said, to explain all the drugs' cardiovascular benefits.
Thus, whether in rural or nonrural areas, The Expansion did narrow the gender gap, with a more drastic effect in rural areas.
While everything can impact our microbiome over time, antifungal, antibiotic, antiparasitic, and antiviral compounds tend to have a more drastic effect in the short term.
Some community colleges may further reduce class offerings in the fall as insurance against the tax measure's defeat, avoiding a more drastic effect on spring semester classes, said Paige Marlatt-Dorr, a spokeswoman in the state chancellor's office.
Though I-93's effect on the North End was more or less superficial by the time the highway was built, interstate projects have had a much more drastic effect on other historic neighborhoods--probably more than should have been allowed.
In addition, PKD2-depleted cultures exhibited a significantly reduced number of multinucleated myotubes which points to an even more drastic effect during further myotube formation (Figure 5G).
Botox has an altogether more drastic effect in that it paralyzes facial muscles.
Higher amounts of SSA had an even more drastic effect on the growth of ssadh-3 (SSA 1.5 and 2 mM; Figure 6A).
When antioxidants were provided to a susceptible strain of Anopheles gambiae to Plasmodium infection, a similar but more drastic effect was observed with female mosquitoes [7].
