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Derbac-M Liquid

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£8.99 Best Offer by: pharmacyfirst.co.uk See more offers
7 Reviews

Debac-M Liquid is designed to tackle nits. Whilst it does work when used correctly, it has to be left on for around 12 hours in order to be effective, and can leave quite an unpleasant smell.

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    7 Reviews
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      18.05.2013 09:44
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      An effective treatment for unwanted visitors.

      Derbac-M Liquid.

      Warning this review might make you squirm and scratch.

      One of the hazards of my job is that on occasions you can pick up little nasty's from patients no matter how careful you are. I was quite fortunate along with several of my colleagues that we were not affected however to prevent spread we all had to use this treatment. A couple of years ago we were forced to use this product following a patient being admitted who had a rare form of scabies. All of the staff had to use this plus their families as some had become infected. We had to act quite quickly to prevent the spread to others. We ordered the supplies from the pharmacy and set a date when everyone should use it to ensure that eradication was a success that included all the patients, staff and their families as it was a particularly nasty and virulent type of scabies. Some people just scratched at the mention of the word.

      What is Derbac-M?

      Derbac-M is a treatment to eradicate lice, pubic lice, crabs and scabies. It can be bought over the counter or prescribed by your GP. The active ingredient of Derbac-M is Malathion is an insecticide which kills lice and scabies mites.

      What does it look like?

      It comes in a 200 ml bottle and is in a box with instructions for use inside. It is important to follow the instructions on the leaflet depending on whatever you are treating. It is a semi thick watery white liquid and smells quite horrible. It does not have a very pleasant smell at all.

      How to use Derbac?

      Each person had to have a shower then the liquid had to be rubbed all over the body from the head down to the toes ensuring that you were avoiding eyes and mouth. You should avoid applying it to cuts or grazes. The smell is not very pleasant at all. You should apply the liquid in a well-ventilated room. Once applied you have to allow the liquid to dry itself and not dry it with a towel. Once it has dried off you have to leave it on for 24 hours and not wash it off which is difficult because no matter how many times you wash your hands you have to re-apply the stuff. If you are treating head lice you can wash it off after 12 hours but do not use a hair dryer.

      Not only this you had to ensure that all bedding, towels and clothing had to be washed to minimise re infecting yourself. This was quite a mammoth operation at work. My wife and daughter were not best pleased and although we were not infected we still had to follow the protocol and it is better to be safe than sorry. I can tell you I was not favourite person of the month and got more nagging off my daughter than my wife although she was not too happy of course but understood the risks. We suffered no side effects from the treatment apart from the dreaded smell of it.

      After 24 hours you were allowed to wash the Derbac-M off. Despite everyone having a shower there was still a little lingering of the smell on the skin although much milder. None of us were happy with the smell of the liquid but it is something that needed to be done. It had to be re-applied seven days later as some of the staff still had traces of scabies which went down like a lead balloon with my colleagues and at home.

      Did it work?

      As we were not affected by scabies we could not be sure that if we had become infected or not however as we did not have any symptoms but for the staff that were affected after two applications again by everyone after seven days it did seem to eradicate it completely. It can be used for three applications in total, seven days apart.

      It can be obtained from any pharmacy over the counter or by prescription.

      Side effects?

      Some people have reported that there can be localised irritation of the skin.
      It should not be used in babies under six months old and there are no contra-indications for pregnant women.

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        25.11.2009 20:53
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        We received a letter home from school recently informing us that there had been several cases of head lice reported in a few of the children. I have to say we have been quite a lucky family in that my son has managed to escape these pesky little blighters for years that is up until recently. I did check him every night before bedtime and watched closely looking for the tell-tale itching. I even went as far as purchasing a bottle of Berbac M Liquid just in case.

        Head Lice for those of you who don't already know are parasitic insects Their scientific name is Pediculus humanus capitis. They develop in three different forms Nits, Nymphs and Adults. Nits are head lice eggs they are hard to see and can be mistaken for dandruff or other hair care products. They tend to attach themselves to the shaft of the hair they are oval and are generally yellow or white in colour. Nits normally take a week to hatch. Nymphs are immature adult head lice they mature into adults after seven days of hatching. They require blood to survive and tend to live on the scalp of humans here they find a readily available supply. Adults or louse are about the same size as a sesame seed and have six legs!!! They are coloured tan to greyish white. Adult lice can live on the head for 30 days. If it falls off the head it can still survive for up to two days. The reason that headlice are rife among nursery and school children is that they are easily spread from person to person by direct contact. Children by their very nature are notorious for touching and hugging each other during play and for sharing each others hats etc!! An important point to note is that head lice spread regardless of hygiene practices.

        In order to find a head lice infestation it is important to look closely at the hair and scalp for nits, nymphs or adults. Nits are easiest to see as they are usually glued to the hairshaft. The biggest tell-tale sign is scratching it should be noted that prolonged scratching can lead to skin sores and skin infections and should be treated quickly. It is a common myth that lice die straight away when they fall of the head hence it is important once they are discovered to check the hair of all family members. Machine wash on a high temperature all clothing and bed-linen. Ensure all brushes, combs are washed too as this is a prime source for reinfection. ( Many thanks to The Headlice Health Promotion and Prevention Website for some of this Information). If everyone follows these simple steps then hopefully reinfection will be avoided.

        We were sat in the living room a couple of weeks ago and I noticed that my son was scratching his head frequently. I have a nit comb already and after careful examination noted that he had small white particles on his hairshaft. As fast treatment is vital I proceeded to my medicine cabinet and reached for the Derbac M. There are several lotions and potions that can be purchased to get rid of these pests however I opted for this particular lotion as my son suffers from mild asthma and sensitive skin. The pharmacist recommended this particular product as it had been developed specifically with these issues in mind. I believe the product cost around £5.99 it certainly wasn't any more than this as I can remember being surprised as I had heard several people commenting that the price of these treatments can often be in excess of £10!!.

        The lotion comes packaged in an outer white cardboard box. It states on the box the name of the product and that it is suitable in the treatment of Head Lice, Crab Lice and Scabies. In addition this could work out good value for money as it can treat up to four heads so ideal if the whole family is affected in the sense that it is cost-effective. The lotion itself comes in a brown medicine type bottle with a screw-top lid. Instructions for use is provided on the packaging, bottle and in a handy information leaflet. It contains 200mls of product in liquid form.

        To treat any of the conditions stated on the pack one quarter of the lotion is sufficient. It is important to apply enough lotion for the product to be successful. It is suitable for use by adults, the elderly and for children upwards of six months old. Using the Dermac M is simple I opened the cap and was met by a rather pleasant fragrance which surprised me as I had assumed that it would smell repulsive. It reminded me of medicated lavender very clean and crisp. I shook the bottle vigorously as instructed and applied sufficient product which was milky white to my sons dry hair. It is important to ensure that no part of the scalp is left uncovered. You then work into the hair spreading the liquid evenly from the roots to the tips. The hair should be left to dry naturally ( the manufacturers recommend in a well ventilated room ). This product is slightly different from some similar types of nit cream on the market in that it must be left on the head for a full twelve hours. It is all right for it to be left overnight too. After which time the hair should be washed with normal shampoo. It is recommended that while the hair is still wet that it should be combed. I used my fine toothed nit comb as this is more effective in removing as many dead lice and eggs as possible.

        It is important to observe the safety instruction while using and prior to applying Derbac M. Prolonged or repeated use should be avoided. It should not be used more than once a week and definitely not more than on three consecutive weeks. It is important to cover the eyes at all times during application. A towel is useful in preventing any lotion from splashing into the eyes. However if this does happen then rinse immediately with warm water. I applied the product wearing disposable gloves. It should be noted that there is also a warning that this product may have detrimental effects on permed, pre-rinsed or coloured hair so I would advise caution. Occasionally this product may cause skin irritation if this is the case then stop using the product and consult a doctor or pharmacist.


        My son luckily was neither up nor down during the application process and sat there quite happily while I applied the product. The whole process took around fifteen minutes to ensure that I had achieved an even coverage. I applied this at seven o clock in the evening and it had dried completely by about half past seven so in plenty of time to ensure a sharp bedtime. He suffered no irritation from this product which I was pleased about as he has had problems with so called sensitive products in the past where they were in fact not sensitive enough for his skin type. The lotion tended to foam slightly on application which was a good thing as it allowed you too see where you had put it making even coverage easier to achieve. The next day I rinsed the product from his hair and washed it with shampoo only. The lotion came out easily with no unnecessary scrubbing or rubbing. I dried his hair and section by section worked my way through picking out dead nits and eggs. Not a joyous task however as the combination of the lotion and shampoo had left his hair soft and shiny they came out easily. I then proceeded to spend the entire day washing everything I could get my hands on at as high a temperature as possible. Duvets, clothing his bedroom curtains, towels combs, brushes. You name it I washed the lot. Well here we are three weeks later and not a single nit nymph or adult louse in site.

        I would recommend this lotion to all particularly if the sufferer has asthma or sensitive skin. I have read many reviews on this product and I have to say that it generally gets a bad press. I actually rate this product very highly and if you follow the instructions and implement other precautions for example washing practically everything in the house I think that this item is brilliant and does exactly what it says it will do. Rid the hair of pesky nits. Unfortunately by their very nature reinfection rate is high not because of certain products but due to the nature of their spread by contact with other people. Overall recommended.

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          25.03.2009 15:05
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          Next time my child has nits, I'm not hugging her!

          When you first think that you might like a little darling baby of your own, they don't tell you that one day that darling baby will grow up, go to school, catch nits, come home, and give them to you!

          I caught nits whilst living in hospital ... I was on the antenatal ward for several months, and I got the nits from my daughter on a visit. Some present. I didn't notice for a while, and when I did, I thought my itchy head was pregnancy-related. The rest of my skin was itching like crazy too - enough for a midwife to notice and take blood to check my liver was working properly (it was, I just had dry skin). But one morning I scratched my dreadfully itchy head and came away with a louse. Eeeeuuurgh!

          So there I am, in hospital, with nits. My husband is at home with the older two children, one of whom has nits too. Now ordinarily I'd advocate lots of conditioner and a nit comb, but that requires a second person to do the combing, and I didn't want to waste precious visiting time on it. So I consulted the midwife, who reappeared later with a bottle of Derbac M Liquid.

          It is safe for use on pregnant women, the antenatal department at Addebbookes hospital says! Actually the box says it is safe from 6-months upwards - I can't imagine having to treat a 6-month-old baby for nits though.

          The active ingredient is Malathion 0.5% w/w.

          --- Use ---
          The liquid is white, quite runny, and smells like insect repellent. You massage it into your dry hair, rather like hair dye. It's a bit tricky to do as the liquid is very runny and you mustn't get it into your eyes. It is particularly tricky to do in a small hospital bathroom! I imagine that most people are rubbing this into their child's hair, which would be easier (if they kept still).

          Once you have rubbed it in, you end up with sticky wet smelly hair. Then you are supposed to leave it there for 12 hours. Nice. So it is best to put it on just before you go to bed.

          It took me about 10 minutes to put it on, followed by 10 minutes spent fervently praying that tonight would not be the night when I'd have a crisis and get rushed off to the operating theatre to have my baby whipped out. The thought of all that happening while my hair was sticky and smelly was just too much!

          The box says it is suitable for those with asthma and sensitive skin. I have both of those and had no problem with this.

          The next morning I awoke, thankfully still pregnant and in my bed. So went to wash the stuff out. This is just like rinsing your hair really, except for making sure you don't get it in your eyes. I washed my hair afterwards too.

          And oh the relief! I knew it had worked because my head didn't itch any more.

          The instructions say that one use is effective. The doctor said I should do it twice, the second time a week later. But I had my baby in that week, so never got around to it. The nits were all gone.

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            03.07.2005 20:07
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            a bit smelly and expensive but does what it says and kills nits dead

            I bought this liquid for my children when the dreaded letter arrived saying nits was going around yet again. I have tried several other nit lotions and potions before. The last I tried was the mousse which was the biggest waste of money I believe has ever been spent. I read the label did everything it said and in the end we still has the nits.

            Anyway, the lotion is very smelly and it is unwise to use if you or your children have asthma due to the ingredients etc.

            To start using this you pour onto the hair section by section until the whole head is covered completely with the lotion. It is very annoying if like my daughter you have very long hair. If this is the case it takes ages.

            There is enough lotion in the bottle to do four heads but depending on the length of hair for each person it usually does more. I have 2 boys, 1 hubby, a daughter and myself. All the men have short hair and my daughter and I have longish hair. The solution managed to do all our heads and there was about a quarter left.

            It is quite expensive, I believe I paid £9.99. This being so it was well worth the price to get rid of those little blighters.

            The best thing I have found especially where children are concerned is to put the solution on their hair when they have eaten their tea. Then keep them inside (I think its a little embarrassing personally to let them go out with nit lotion on) They then carry on as normal, watch t.v, read or run around etc. I think the best benefit you get from the expense of this lotion is to leave them with it on overnight. I know it means getting up early on a school day to wash it out and condition their hair but if you take it off too soon it doesn't work as well.

            When they have had their hair washed you then need to use a nit comb and comb through their hair section by section to get rid of the dead eggs and nits etc. It is a very tedious job and by the time you have done 3 heads and your own you are sick of the mention of nits.

            I found this solution the best I have ever bought and it was well worth the money because it did get rid of them. The only embarrassing bit is where you have to go into the chemist and speak quietly asking for nit lotion. The first time I did this people did hear me and moved several steps back. I now try to ask when the shop is empty. Its also a little embarrassing that the lotion bottle and box have the words ; kills head lice, crab lice and scabies. This is the worst bit when your little 6 year old asks you what a crab lice is. Other than that it is well worth the money and I would give it 10/10 for its effectiveness.

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              04.05.2005 08:12
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              • "VERY EXPENSIVE"

              Its that time of year again that i absolutly dread....Two of my children are at school and in the summer terms we tend to have numerous outbreaks of head lice. The last attack was awful, they were everywhere, and my daughter was in a major panic! Ihad previously used a conditioner with tea tree oil, but as there were so many lice i decided to purchase a medicated treatment. There are various treatments on the market , all claim to do the same thing. This one was recommended to me by the pharmacist!

              The product

              Derbac m is a liquid based treatment which kills head lice, crab lice, and scabies mite. It comes in a 200ml bottle, and cost £9.99.( which i find too expensive!)

              Ingredients

              Contains Mathathion 0.5% w/w
              Also contains preservatives e216 , e218, lanette wax sx , potassium citrate , citric acid , perfume ht52 , water

              Instructions

              Apply to dry hair, covering the whole scalp. Leave on for 8hours or overnight. Rinse throughly, and comb sections of hair with a head lice comb. Retreat if necessary.

              PRECAUTIONS

              (1) Not recommended below 6 months except on medical advice.

              (2) Prolonged or repeated use should be avoided.

              (3) It should not be used more than once a week, and not for more than 3 consectutive weeks.

              (4) Eyes should be procted at all times.

              (5) If persistant irriitation occurs seek medical advice.

              (6)Permed , pre rinsed and coloured hair may be affected by the liquid.

              My opinion

              We had to leave the liquid on over night, and the smell was awful! straight as i went upstairs i could smell it!
              Rinsed the liquid off in the morning, combed hair , removed lice. It didnt actually kill the lice off( they were still moving). Re-checked the hair everyday with the head lice comb , still there!
              It didnt work for us. i found it over priced, smelly , and dosent do what it says on the bottle! ( And having to leave it on for 12 hours! )
              To be honest i think using just an ordinary conditioner with the comb is the most effective method!

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              • More +
                26.09.2002 06:31

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                doesn't kill eggs - Advantages: worked on my daughter, free for children on prescription - Disadvantages: only kills live lice, eggs will still hatch

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                21.07.2002 04:11

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                i tried this on whole family at 7 day intervals and it was no good - Advantages: nice smell - Disadvantages: waste time, waste money

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            • Product Details

              Apply to affected area allowing to dry. Wash off 12 hours later then use nit comb.