Diphenhydramine Hydrochloride Tablets
Function and Efficacy
It is a derivative of ethanolamine. Its antihistamine effect is not as good as promethazine, and its duration of action is also shorter. The sedative effect of the two drugs is the same, with local anesthetic, antiemetic and anti-M cholinergic effects. 1. Antihistamine effect, which can compete with histamine released from tissues for H1 receptors on effector cells, thereby stopping allergic reactions; 2. Inhibition of central nervous system activity causes sedative and hypnotic effects; 3. Strengthen the effect of antitussive drugs; 4. It also has anti-vertigo and anti-tremor paralysis effects.
Ingredients
Diphenhydramine. Chemical name: N, N-dimethyl-2-(diphenylmethoxy)ethylamine hydrochloride. Its structural formula is: C17H21NOHCl291.82
| Name | Description | Content | CAS NO. | Manufacturer |
|---|---|---|---|---|
| DiphenhydramineIngredients |
1. Antihistamine effect, it can compete with histamine released from tissues for H1 receptors on effector cells, thereby stopping allergic reactions; 2. Inhibition of central nervous system activity causes sedative and hypnotic effects; 3. Strengthen the effect of antitussive drugs; 4. It has anti-vertigo and anti-tremor paralysis effects; 5. It has certain local anesthetic and antiemetic effects. More |
58-73-1 | 3 |
Appearance
This product is a sugar-coated tablet, which appears white after removing the sugar coating.
Indication
It is used for skin and mucous membrane allergies, such as urticaria, allergic rhinitis, pruritus, drug eruption, insect bites and contact dermatitis. It can also be used to prevent and treat motion sickness.
Usage and Dosage
The usual dose for adults is 25-50 mg taken orally after meals, 2-3 times a day.
Adverse Reactions
Common symptoms include dizziness, headache, nausea, vomiting, loss of appetite and drowsiness. Occasionally, skin rash and neutropenia may occur.
Precautions
It is contraindicated for patients with myasthenia gravis, angle-closure glaucoma, prostatic hypertrophy, those who are allergic to this product and excipients, newborns, and premature infants.
Special Population Medication
Precautions for children: It is forbidden to use in newborns and premature infants. Precautions for pregnancy and lactation: (1) Taking this product during pregnancy may increase the incidence of cleft palate, inguinal hernia and urogenital malformations in infants, so pregnant women should use it with caution; (2) A small amount of this product can be excreted in breast milk, so it should not be used by lactating women. Precautions for the elderly: It may cause slow reaction, dizziness, etc.
Drug Interactions
1. This product may temporarily affect the absorption of barbiturates and sodium sulfacetamide. 2. When used together with sodium para-aminosalicylate, it may reduce the latter's blood concentration. 3. It may enhance the effect of central nervous system depressants. If used with other drugs at the same time, drug interactions may occur. Please consult a physician or pharmacist for details.
Storage
Keep sealed.
Packaging Specification
25 mg
Validity Period
2 years
Manufacturer
Harbin Pharmaceutical Group Pharmaceutical Factory No.6
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Founded in:
1994-05-20 -
Address:
No. 326, Nanzhi Road, Daowai District, Harbin, Xingye East Road, Limin Economic and Technological Development Zone, Harbin -
Tax NO.:
912301001270449678 -
Registered Funds:
- -
Website:
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Email: