Zirtek (Cetirizine) optimal time to take

[Deleted User]

Hi,

Does anyone how long Zirtek (Cetirizine) takes to be absorbed and providing the peak antihistamine properties?

It says 1 tablet for all day relief but I was wondering if say I take it 30 minutes before, is this long enough? Alternatively if I take it 10 hours before would the antihistimine properties start to wear off?

Thanks!

adamantine

i cannot remember how long it takes to kick in but when i was on it before it stopped working for me i was told that it can take a couple of days before you get the full effect and as long as you take it every day it would keep a steady level of the drug in your system. HTH.

esuhl

I don't know anything about biochemistry, but anecdotally speaking, I find it takes about 20 to 30 mins for the effects to kick in. When I've had bad hayfever/allergies, I've found that if I take one first thing in the morning, they will have started to wear off by the time I go to bed (~16hrs later). Not sure if that helps at all...

Don't forget to buy "unbranded" cetirizine -- it's a lot cheaper than Zirtek! :money:

[Deleted User]

adamantine wrote: »

i cannot remember how long it takes to kick in but when i was on it before it stopped working for me i was told that it can take a couple of days before you get the full effect and as long as you take it every day it would keep a steady level of the drug in your system. HTH.

Yeah I've read that although I'm only allergic to cats so intend to take it on the day I'm planning on visiting the house with the cat. I'll see how I get on and possibly take it the day before to see if it's any better.

esuhl wrote: »

I don't know anything about biochemistry, but anecdotally speaking, I find it takes about 20 to 30 mins for the effects to kick in. When I've had bad hayfever/allergies, I've found that if I take one first thing in the morning, they will have started to wear off by the time I go to bed (~16hrs later). Not sure if that helps at all...

Don't forget to buy "unbranded" cetirizine -- it's a lot cheaper than Zirtek! :money:

Thanks. Boots own brand bought!

WantToBeFree

If you take it the day bfore it will have worn of by the time you get there! I take them and find that within 15 mins I'm getting relief, so if youre visiting, depending on long it takes you to get there take one as youre leaving your house and you should fine

[Deleted User]

WantToBeFree wrote: »

If you take it the day bfore it will have worn of by the time you get there!

I meant in addition to on the day

WantToBeFree wrote: »

I take them and find that within 15 mins I'm getting relief, so if youre visiting, depending on long it takes you to get there take one as youre leaving your house and you should fine

Good to know

Skyllo

Deleted_User wrote: »

Yeah I've read that although I'm only allergic to cats so intend to take it on the day I'm planning on visiting the house with the cat. I'll see how I get on and possibly take it the day before to see if it's any better.


Thanks. Boots own brand bought!

Home Bargains have 14 tabs for around 79p. Cheapest I've seen.

[Deleted User]

Thanks. Anyone else?