Our distinctive quality sachets were the UK's first sterile single-use citric acid sachets. They contain 100mg of pharmaceutical quality citric acid.
To order, put the number of individual sachets that you require in the quantity box above - you can order the exact number you need. The carton quantity is 5,000.
100mg is the smallest amount of powder that can practically be dosed into a sachet, but this is far too much for the average heroin/crack cocaine injection. People using the sachets are advised to start small, and add a bit at a time - if the solution does not clear adding more acid will not dissolve more drug, and will increase vein and tissue damage.
We have made a video showing how the chemical reaction that takes place when citric acid and heroin are added to water works. To view the video how much citric? Click here (opens our youtube channel in a new window).
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Price (inc VAT)
FREE shipping on all UK orders over £30
Providing citric acid sachets to injecting drug users is very popular with service users and:
Reduces the risks associated with using more dangerous acidifiers (such as lemon juice);
Improves the relationships and dialogue between staff and service users; and
Increases both the numbers of people using needle exchange services and the frequency with which they attend.
For more information, click on 'product briefing' below.
To order via NHS supply chain, add the product code FTR969 for Citric bulk pack to your favourites.
We developed the UK's first sterile single-use citric acid sachets, and they are manufactured to an exacting and consistent standard.
The citric acid BP in our sachets is manufactured in a clean room under strict hygiene and quality control procedures.
The citric acid is carefully measured into sachets that are made up of 4 bonded layers to keep them airtight, watertight and free from contamination. There is a layer of paper on the outside that can be printed on. Beneath that is a layer of waterproof plastic over a layer of aluminium foil. The final layer that lines the sachet is of waterproof plastic.
As the sachets come off the production line, every sachet is checked by an electronic fill checking device, to make sure that they contain powder (the filler nozzles are very fine and they can become blocked). Every hour, several sheets of 10 are tested for weight, print clarity, and water tightness (this is tested by placing the sachets in a water chamber with a vacuum above that shows any leaks by pulling a stream of air bubbles from the sachet).
The sachets are carefully logged, certificated and most importantly, are fully traceable through a system of daily batch numbering. The citric acid is guaranteed chemically stable for 3 years by the manufacturer. For added safety we have stipulated a 'use-by' date of 2 years from the date of packing.
Each sachet is tracked from manufacture, through sterilisation and out to the customer so that we can, if necessary, conduct a highly selective recall.
Because we have put so many quality control safeguards in place, problems with our products are unlikely. But, if you do experience any problems with our sachets, please contact us straightaway so that we can put in place our procedures to:
recall and replace your faulty sachets (they will be sent back to the manufacturer so that they can be examined. We will let you know the results of those tests); and depending on the nature of the problem
warn other customers of potential problems, and if necessary recall and replace affected stock.
Since citric was introduced, its supply has been researched in several places.
To date, the findings of all these studies and surveys has been very positive.
Original Scottish evaluation:
Citric sachets were first introduced in a systematic and organised way across Greater Glasgow and Lanarkshire. As a part of this implementation, the Scottish Executive Effective Interventions Unit conducted an independent evaluation of their introduction. The findings of this survey (published in March 2003) were very positive, concluding amongst other things, that citric acid sachets should be supplied by needle exchange services across the UK.
To view the summary of the study go to Scottish Executive website (opens in a new window).
Introduction on Merseyside
The widespread introduction of citric in Merseyside services was monitored by the local Public Health service, to ascertain what effect (if any), it had. They concluded that the provision of citric did not appear to attract more heroin injectors to services - perhaps because most of them were already attending needle exchanges. However, it did appear to have a significant positive effect on the number of visits to services. Attendees were taking the same number of syringes at each visit as they had been doing previously, meaning that more sterile syringes were in circulation amongst local heroin injectors.
This study was presented by Dr Caryl Benyon at the 2005 National Conference on Injecting Drug Use, and was very positive about the consequences of acidifier distribution, which included increased frequency of use of NSPs.
One sachet per syringe
Many injectors re-use syringes - the Centre for Research into Drugs and Health Behaviour estimates that on average across the UK, needle and syringe exchanges are distributing less than one needle and syringe per injector per day. Given that many people inject a number of times a day, it is likely that a large amount of syringes are being re-used.
Part of the aim of introducing citric sachets is to increase both the numbers of people attending and the number of visits to needle exchanges. Most agencies currently distributing citric sachets are sticking to a 'one sachet per syringe' rule, and we support this. Where unrealistic limits on the amounts of injecting equipment given out are in place, they should be reviewed.
Exchange Supplies is an organisation with our roots in the provision of confidential drug services, and we absolutely understand the need for discretion in the outer packaging of our goods when shipping to individual customers.
If you tick the discreet packaging tick box your order will be shipped in plain packaging, looking just like any other mail order package. There will be no branding, stickers, logos, or stamps on the outside that would enable someone to guess what the contents are. For UK orders we usually use Royal Mail tracked service as this is likely to draw less attention than an orange TNT lorry.
Overseas orders will have a label on the outside containing a customs notification declaring the contents.
Exchange Supplies is an organisation with its foundations in the provision of confidential healthcare to a patient group who care more about their confidentiality than any other - injecting drug users.
So you know we really mean it when we say we take your privacy, and right to confidentiality, very seriously. We dispatch goods to individuals in plain packaging.
We do, of course, collect information about you when you give it to us on the phone or through the website. When placing an order you will be required to supply your credit card or bank details but these will only be stored until your order has been despatched. We can only access these again by logging onto a secure server to assist us should there be a dispute with your payment. We respect your privacy and will not divulge data you supply to us for payment and delivery of goods without your permission, all data is stored in accordance with the Data Protection Act.
Please note that we are required by the carriers to give the mobile number and email address you supply to them. They may share this with the customs authorities in your country.
We have taken all reasonable care to protect your data and our system. Of course, if someone were to break into our password protected system and steal or corrupt data, that is a criminal act, and they would be liable for their actions and not us.
Exchange Supplies returns policy
By placing an order online, you are committing to buy the products you have selected.
If we supply you with incorrect (or faulty) goods please get in touch straight away so we can correct our mistake and supply the correct product(s).
Your assistance in returning the goods sent in error will be required, and we will, of course, cover the agreed associated shipping costs. We will normally arrange collection, or ask you to post the goods back by recorded delivery. If you choose to return goods using any other method, we reserve the right to only refund what it would have cost us to arrange collection by our courier.
If after delivery you want to cancel the order, please contact us so we can discuss the practical arrangements for returning the goods. We are an ethical business, and strive to offer the highest levels of customer service, but we have to reserve the right, at our discretion, to:
charge a restocking fee
not refund outbound carriage costs (based on the actual cost to us)
make you pay for return of the goods in a saleable condition.
Exchange Supplies terms & conditions for customers, and use of our website and its contents
The price payable for the goods is that as set out at the time you place your order and should coincide with those prices listed within the website. VAT, where applicable, is included in all prices displayed online. We reserve the right to adjust these prices without warning or prior notice. Errors and Omissions are unlikely because the webshop is integrated with our accounts system, but we have to stipulate that they are excepted (E&OE).
Some customers are exempt from VAT, the prices given in a web order may still show VAT, however, this will be deducted prior to dispatch.
We strongly recommend that you use a delivery address that is generally occupied during normal working hours (Monday to Friday, 09.00 to 17.30). If we have to organise redirection of your goods once dispatched, or pay for the goods to be returned to us, we reserve the right to pass on any additional costs to you.
We will not be liable for any return postage costs unless the goods are dispatched faulty or the incorrect items are sent to you.
If you are unhappy with any goods we supply, please call us on 01305 262244 and we will endeavour to resolve your complaint quickly.
Your order will not be dispatched until we have received clearance from your credit card company.
If all or any of your order is not ready for dispatch we will not take any money from you until the goods are ready to go.
Please also see our returns, privacy and delivery policies.
Whilst we do our best to ensure the accuracy of information supplied on the website, we do not warrant that the information contained is accurate, up to date or complete. Information may be subject to change without notice. Any information given, whether verbal or in writing, is for guidance only. This does not affect your statutory rights under English Law.
All the information and images on this site are protected by copyright and commercial organisations may not use any image or text without permission. Unauthorised use may result in charges being applied, and court action.