The active ingredient in both pills is the same (Cetirizine). The difference between hydrochloride and dihydrochloride is the difference between the non active ingredients in the pills that are added to the drug so that there is enough bulk to make a pill. The above 'advice' is simply rubbish. Any (old Skool) A-Level chemistry student knows the difference between 'hydrochloride' and 'di-hydrochloride': Not the same molecule.However, in layman's terms: cetirizine di-hydrochloride is the real thing and is less likely to make you drowsy. Cetirizine hydrochloride is a copycat molecule to work around patent laws.From personal experience, cetirizine hydrochloride makes me drowsy, whereas cetirizine di-hydrochloride does not. :-)
They will not be harmful, they will either still be good or if they really are expired they will simply not work or not work as well as they used to.
Hydrochloride Monohydrate
The normal shelf-life of pills are one to two years after purchasing. Generally you can use them past their expiration date if they havent been exposed to extreme heat or cold, but they're going to lose some potency.
Hydralazine hydrochloride
Apresoline Hydrochloride
Hydrochloride means the product has a "salt" component in its chemical makeup. Dilaudid is hydromorphone hcl ( hydromorphone hydrochloride)
anal lubrication
what is this tetracycline mk hydrochloride 500 mg
Imipramine hydrochloride-- A drug used to increase bladder capacity.
Yes, pyridoxine hydrochloride is a chemical compound.
Yes, fioricet does contain hydrochloride. Hydrochloride are salts that result from the reaction of hydrochloric acid with an organic base, which are mostly amines.