Today it is difficult to find a person who would not be familiar with allergies. A seemingly harmless phenomenon can lead to serious consequences. What is anaphylactic shock worth, which can be fatal. Therefore, it is very important to immediately provide medical assistance to the patient at the first symptoms of an allergy. A quality antihistamine will come to the rescue. It will stop the development of an allergic reaction and normalize the state of the whole organism.
Diphenhydramine is a popular drug among specialists. Instructions for use describe the rules of admission, as well as indications.
Pharmacological information
The drug has an antiallergic, antiemetic effect. It also has sedative, hypnotic and local anesthetic properties. Blocks histamine receptors. The drug lowers and removes histamine-induced muscle spasms, tissue swelling, redness, itching and rash. When the drug enters the body, there is a feeling of numbness of the mucous membranes in the mouth. With many diseases, the medical remedy "Diphenhydramine" can help. Instructions forapplication should be studied before starting treatment.
The main active ingredient blocks the cholinergic receptors of the autonomic ganglia, thereby reducing pressure. If the drug is ingested in patients with impaired blood volume, hypotension may increase. Therefore, you need to monitor the pressure indicators. Patients suffering from epileptic seizures may begin seizures. The drug perfectly copes with bronchospasm, reduces the cough reflex. The drug "Diphenhydramine" shows itself very well for attacks of bronchial asthma. Instructions for use will help determine the correct dosage.
The action of the drug in the body
When taken orally, the product dissolves and is absorbed in a short time. The maximum active effect occurs one hour after administration. Almost 100% combines with blood proteins. Most of the drug is broken down in the liver, the rest is excreted in the urine during the day.
Duration of action of the drug reaches 6 hours. If a nursing mother takes this medicine, the baby may develop hypnotic and sedative effects. Therefore, during lactation, the medication can be used only after consulting a pediatrician. Pregnant women should not use Diphenhydramine. Instructions for use, release form, analogues - all this information should be studied before starting treatment.
Using medicine
There are manyconditions in which it is advisable to take the drug "Defingidrami". These are urticaria, dermatoses that cause severe itching, vasomotor rhinitis, allergic conjunctivitis, serum sickness, allergic reactions to the drug administration.
A medication is prescribed for anaphylactic shock during the transfusion of red blood cells and blood substitutes. In the complex treatment of radiation sickness, a medication can also be used.
The drug "Defingidrami" is used as a local anesthetic, during flights and sea travel - as an antiemetic.
Must be studied before using the "Diphenhydramine" instructions for use. The ointment is also widely used. The drug in this form helps to relieve pain from sunburn, during an insect bite. The ointment quickly eliminates the rash that appeared due to an allergic reaction.
Contraindications
In case of strong sensitivity to the components of the drug, it can not be used. It is not recommended to take this medicine while breastfeeding as it will make the baby drowsy. No medication given to newborns.
The remedy is contraindicated in glaucoma, prostatic hypertrophy, in the acute period of peptic ulcer and gastritis, with stenosis of the bladder neck. It is prescribed with great care to minor patients.
The drug is contraindicated inchronic processes in the kidneys and liver. Before starting therapy, it is necessary to thoroughly study all contraindications to the drug "Diphenhydramine". Instructions for use describe everything in detail.
Side effects
From the side of the nervous system, such phenomena as weakness, drowsiness, decreased attention, fatigue, dizziness, pain in the head, impaired coordination of movements, anxiety, increased excitability can be observed.
From the side of the cardiovascular system: low blood pressure, palpitations, tachycardia, thrombocytopenia, hemolytic anemia. On the part of the gastrointestinal tract, dry mouth, numbness of the mucous membrane, nausea, vomiting, diarrhea, constipation, weight loss occur.
On the part of the kidneys, there may be urinary retention, frequent urge to go to the toilet, or a complete lack of urine. You may also experience dryness of the nose and throat, nasal congestion, viscosity of sputum from the bronchi. Increased sweating, fear of light may also develop. Very often there are allergic reactions in the form of a rash, hyperemia and itching. The drug "Diphenhydramine" has many side effects. Instructions for use, analogues, possible adverse reactions - all this should be studied before starting therapy.
Drug overdose
If the medication is taken incorrectly, there may be excitation or, conversely, depression of the nervous system, redness of the skin, loss of consciousness, dryness of the mucous membranes, it becomes difficult to breathe. In case of drug overdose,detoxification therapy. The patient is given a gastric lavage, enemas, and an adsorbent is given to drink. Additionally, sterile preparations of glucose and saline are used in the form of droppers.
Be sure to measure the pulse and pressure. A condition caused by an overdose of the drug requires constant monitoring by a doctor and junior medical personnel. Therefore, such patients are supposed to be treated in the intensive care unit until the condition normalizes. The dosage regimen should be strictly observed using the Diphenhydramine remedy. Instructions for use, synonyms, contraindications - all this will be prompted by the doctor.
Diphenhydramine dosage
The drug has several uses. These are intramuscular and intravenous injections, rectal method. There is a medicine in the form of drops and ointments. Orally, adults are prescribed 30-50 mg of the drug three times a day. From motion sickness, you need to drink medicine one hour before the upcoming trip. To eliminate insomnia before bedtime, you need to use 50 mg of the drug. No more than 150 mg of the drug can be taken per day, otherwise overdose symptoms may appear. The allowable dose per dose is 50 mg. Intravenously, the drug is administered in saline at a dose of up to 50 mg. The course of medical treatment should not exceed 10 days.
Diphenhydramine eye drops are widely used. In this form, the drug is used up to five times a day. Ointment or gel with the drug "Diphenhydramine" is applied in a thin layer onskin four times a day.
The dose is set by the doctor on an individual basis. Do not take diphenhydramine on your own. Instructions for use in ampoules contain dosage calculation and methods of drug administration.
How to replace the drug "Diphenhydramine"
Many patients are satisfied with the treatment with this drug. In a short time, it helps to get rid of many allergic symptoms. Well tolerated by the body. Only in very rare cases, side effects may occur.
What if you couldn't find Diphenhydramine at the pharmacy? Instructions for use (tablets, drops, ointment) contain information about the composition. Based on this information, the specialist will easily select a high-quality analogue. There is a huge list of drugs that have a similar effect on the body. Such means as Betadrin, Polinadim, Psilobalm, Cofanol, Valemidin, Pentaflucin and many others are popular.
