antagonistic
incompatible
acid
acidity
agent
alexipharmic
alkali
alkalinity
alkalizer
alloisomer
anion
annulling
anthelmintic
antibiotic
antidotal
antidote
antimicrobial
antipyretic
antitoxic
atom
bacteriostatic
base
bicarbonate of soda
biochemical
buffer
buffering
calcium carbonate
canceling
cation
chemical
chemical element
chromoisomer
compound
copolymer
counteractant
counteractive
counteragent
counterbalancing
counterirritant
dimer
element
febrifugal
gastric antacid
heavy chemicals
high polymer
homopolymer
hydracid
inorganic chemical
ion
isomer
macromolecule
magnesia
100-mg
alkalosis
antihistamine
dipyridamole
erythematous
hyperemia
lavage
laxative
multivitamin
palmtop
paracetamol
pepsin
petabyte
salicylate
scarveslamisil
sulfa
sustained-release
water-purification
Placid
placid