Allergies are a common phenomenon that many people have experienced, such as food allergies, pollen allergies …… but actually did you know? Drug allergy is also one of them. Generally speaking, drug allergy refers to some allergic reactions that occur when using commonly used or lower than commonly used amount of drugs, which may cause itchy skin, rash, fever in mild cases, or even life threatening anaphylaxis in severe cases.
Why do drug allergies occur?
The causes and mechanisms of allergies are generally complex and varied, and drug allergies are the same. For example, the same drug, such as aspirin, can cause severe allergic reactions in some people, while others do not experience any discomfort after using it. This is actually because of the different body types.
These 3 groups of people are prone to drug allergies
1，Long-term users of multiple drugs
In terms of risk, the likelihood of drug allergy is greatly increased for people who take multiple drugs for a long time, and the more types of drugs they take, the more likely it is to cause drug allergy.
2，People with allergies
There are two types of allergic people, one is congenital, i.e., acquired through heredity, and the other is acquired, caused by the excess and deficiency of various endocrine hormones or enzymes in the body, as well as the imbalance between hormones or enzymes. Both of these allergies are the most important internal causes of drug allergy.
3，People who are frequently exposed to drugs
Health care workers in pharmacies, hospital pharmacies, and workers in pharmaceutical companies and factories are often exposed to drugs and often inhale drug volatiles or dust, so the chance of drug allergy increases accordingly.
What are the drugs that tend to cause allergies?
The likelihood of allergic reactions to the same drug varies for different people, so in a strict sense, any drug can cause allergies. There are also common clinical drugs that tend to cause allergies, mainly including the following 9 categories.
Antimicrobials: penicillins, cephalosporin antibiotics, aminobenzyl penicillin, streptomycin, kanamycin, etc.
Sulfonamides: sulfathiazole, sulfadiazine, long-acting sulfanilamide, cotrimoxazole, etc.
Antipyretic and analgesic drugs: such as aspirin, anti-inflammatory pain, ibuprofen, aminopyrine, Anacin, depot pain tablets, etc.
Sedative anticonvulsants: such as phenobarbital, phenytoinamide, chlorpromazine, etc.
Biological agents: such as blood transfusion, human albumin, blood plasma, tetanus antitoxin, etc.
Sedative and sleeping drugs: luminal, Valium.
Anesthetic drugs: procaine.
Serum preparations: placental globulin C, animal serum, etc.
Chinese herbs and proprietary Chinese medicines: Andrographis paniculata, Shuanghuanglian, Fishoil, Zi Zhu Cao, Aconite, Antelope wing antidote pill and Yunnan Baiyao, etc.
How can I tell if I am allergic to a drug?
The incubation period is usually 4-20 days, with an average of 7-8 days, the shortest being only a few minutes, and the latest not more than 72 hours.
The onset of the disease is usually sudden and may be preceded by symptoms such as chills, discomfort, and fever.
In drug allergy, the rash is mostly generalized and symmetrically distributed.
The rash is usually relieved after discontinuation of the drug, in mild cases within a week or so, and in severe cases usually not more than one month.
Drug allergy full analysis, these 9 types of drugs are easy to cause allergies!
How to prevent drug allergy?
Medication under the guidance of a physician
It is often said that “medicine is three parts poison”, which is not without reason. If you need to use drugs, it is best to do so under the guidance of a physician and try to use drugs scientifically, reasonably and safely.
Drug dosage needs to be careful
There is a good saying, “to put aside the dose to talk about toxicity is a rogue”, the right amount, the drug is a life-saving antidote, and once the overdose of drugs, may be a deadly poison. In the process of medication, do not use too many drugs, too chaotic, too mixed, while the dose of drugs should not be too large, the same drug should not be taken for too long.
Pay attention to drug allergies
If you want to stay away from drug allergy, you must first have the awareness and common sense of drug allergy. If you have unexplained fever, rash with itching, or sudden chest tightness, palpitation, dizziness, cold sweat, nausea, vomiting, etc. during the first or second application of the same drug, you should promptly consider drug allergic reactions and ask your doctor to make a diagnosis and treatment.
Stay away from allergic drugs
It is important to keep in mind the drugs to which you are easily allergic to avoid repeated allergies. In addition, since many new drugs are compound preparations or compound preparations of Chinese and Western medicines, it is important to read the instructions carefully before applying these drugs and understand the composition of the drugs to prevent the components of the drugs from containing drugs that have caused allergies before.
At the same time, it is important to pay attention to the cross-allergy and polyvalent allergy phenomenon of drugs. For example, people who are allergic to penicillin. Oral administration of amoxicillin is contraindicated because of the cross-allergy phenomenon between the two.