Which of the following statements is false? P. Aspartame is less sweeter and more stable to heating than alitame. Q. Ormeloxifene is used as an antihistamine agent. R. Alka-Seltzer is used as antacid.

P. Alitame (2000 times sweeter than sucrose) is high potency sweetener and it is more stable to heating than aspartame (100 times sweeter than sucrose). Q. Ormeloxifene is one of the selective estrogen receptor, used as a contraceptive agent and as a treatment for dysfunctional uterine bleeding. R. Alka-Seltzer is the mixture of sodium bicarbonate and potassium bicarbonate used as antacid. Hence, the statement Q is only false.