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Citalopram: switching from pills to liquid CAUTION (UK)


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I'm putting this here because I didn't have that information when I switched and it did set me back. 

In the UK the citalopram liquid is more potent than the pills per mg. The packaging and the leaflet that come with it say so but it's easy to miss esp. if you are in withdrawal. This is also one of the most common drugs prescribed in the UK, so good to have this here for reference. 


The liquid formulation of citalopram is 25% stronger than the pill form. So if you were taking 10mg citalopram in pill form that would be equivalent to 8mg of the liquid. 


Based on this, I am going to do some math here to help with calculations with specific steps on how to get the right dosage of medicine and how to make the solution. Please don't use the dropper attached to the medicine, use a syringe for accurate measurement. Get yourself 10ml and 1ml syringes when you pick up your prescription. They often give those for free when you ask. 


Step 1. Divide your current dosage in pill form by 1.25

This is how many mg you will be taking in liquid form. 

So if your current dosage is in pill form 1.5mg citalopram, your liquid citalopram dosage would be 1.2mg 


Step 2. Now make the solution from which you are going to draw this amount. The UK version of the oral drops is 1ml = 40 mg which means that 0.1ml (small syringe)=4 mg.


Dilute 0.1 ml (1 unit on the small syringe) of the medicine in 40ml of water (4x 10 ml large syringe)

(I make 0.2 ml into 80 ml of water so it lasts me a bit)


Step 3: Measure your dosage multiplied by 10 in ml of the citalopram solution

So for 1.2mg liquid dosage you would take 12ml of citalopram solution from step 2 above. That means 10ml + 2 ml in the large syringe


Note: the form of the liquid citalopram may be different in other countries - read your leaflet. 


I am not a doctor and this should not be considered medical advice. You can use the information provided in whatever way you want and all decisions on your treatment are yours. 


If you would like to get a response from me directly please type @Onmyway some place in your message so I get notified of your post. I am not able to follow all of the threads all the time.


Aug  2000 - July 2003 (ct, 4-6 wk wd) , citalopram 20 mg,  xanax prn, wellbutrin for a few months, trazodone prn 

Dec 2004 - July 2018 citalopram 20 mg, xanax prn (rarely used)

Aug 2018 - citalopram 40 mg (self titrated up)

September 2018 - January 2019 tapered citalopram - 40/30/20/10/5 no issues until a week after reaching 0

Feb 2019 0.25 xanax - 0.5/day (3 weeks) over to klonopin 0.25 once a day to manage severe wd

March 6, reinstated citalopram 2.5 mg (liquid), klonopin 0.25 mg for sleep 2-3 times a week

Apr 1st citalopram 2.0 mg (liquid), klonopin 0.25 once a week, 

citalopram (liquid) 4/14/19 -1.8 mg, 5/8/19 - 1.6 mg,  7/27/19 -1.5 mg,  8/15/19 - 1.35, 2/21/21 - 1.1 (smaller drops in between), 6/20/21 - 1.03 mg, 8/7/21- 1.025, 8/11/21 - 1.02, 8/15/21 - 1.015, 9/3/21 - 0.925 (fingers crossed!), 10/8/21 - 0.9, 10/18/21 - 0.875, 12/31/21 - 0.85, 1/7/22 - 0.825, 1/14/22 - 0.8, 1/22/22 - 0.785


Supplements: magnesium citrate and bi-glycinate


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