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What is Benzocaine made of? Benzocaine is an ester of para-aminobenzoic acid (PABA, common sunscreen molecule) and ethanol (grain alcohol).
An ester is a molecule with a bond between the hydroxy group of one molecule (ethanol) and the carboxylic acid group of another (PABA).
The reaction can be run…
Benzocaine is an anaesthetic drug, mostly used for application direct to the skin. Benzocaine HCl is a salt modification of benzocaine, formed when benzocaine is complexed with hydrochloric acid. Often, drug salts have enhanced properties compared with the parent compound. For example, benzocaine hy…
When p-nitrotoluene is used as a raw material to synthesize ethyl p-aminobenzoate (ie, benzocaine), in the esterification reaction, concentrated sulfuric acid is generally used as a catalyst, and the yield of benzocaine is relatively low. The Lewis acid was used as a catalyst to find that the yield…
Cause of disease
Acute suppurative infection of the middle ear mucosa caused by bacteria entering the middle ear through certain routes is called acute suppurative otitis media. Pathogenic bacteria are more common with hemolytic streptococcus, Staphylococcus aureus, pneumococci, and Proteus. Becaus…
Sulfa antibiotics were first used in the 1930s and they revolutionized medicine. A few years later, bacteria began to develop resistance to drugs, and eventually, penicillin replaced them as first-line treatment. Although antibiotic resistance remains a problem with such antibiotics, sulfonamides ar…
During sexual stimulation, non-renal anergic non-cholinergic neurons of the corpus cavernosum and vascular endothelial nitric oxide synthase catalyze the synthesis of nitric oxide by L-arginine, which activates guanylate cyclase to cyclize Increased guanosine synthesis, which in turn causes relaxati…
Acetildenafil and other synthetic structural analogs of sildenafil which are PDE5 inhibitors have been found as adulterants in a number of "herbal" aphrodisiac products sold over-the-counter.
These analogs have not undergone any of the rigorous testing that drugs like sildenafil have passed, and t…
In clinical trials, the most common adverse effects of sildenafil include headache, flushing, indigestion, nasal congestion and impaired vision, including photophobia and blurred vision. Some users of sildenafil complained that everything was blue (blue vision). Some people complain about ambiguity…
1. For most patients, dosage of sildenafil is 50mg, taken about 1 hour before sexual activity, and sexual stimulation is required after taking the drug. However, it can be taken at any time within 0.5 to 4 hours before sexual activity. Based on the efficacy and tolerability, the daily dose can be ad…
Sildenafil was developed by Pfizer Inc. of the United States and was first introduced into clinical research as a 5-phosphodiesterase inhibitor for the treatment of cardiovascular diseases.
The researchers hope that sildenafil can relax the blood vessels and relieve cardiovascular disease by releas…
what are the Tadalafil interactions with other drugs
1. (1) AUC of sildenafil combined with CYP450 3A4 inhibitors (such as ketoconazole, itraconazole, red mold) and non-specific inhibitors of CYP450 (such as cimetidine) High and the clearance rate is reduced.
(2) combined with HIV protease inhibito…
Before considering the treatment with tadalafil, you should first ask for a medical history and a physical examination of the patient to diagnose whether there is male erectile dysfunction and to identify possible unknown causes.
Because the incidence of cardiovascular disease has a certain degree…
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1957 Bifidus factor
1959 Treating chronic constipation
1966 Treating hepatic encephalopathy
1988 GB8816-88 Food additive Lactulose liquid
1992 Japan's approval of lactulose can be added to foods,…
Good acid resistance: resistant to stomach acid
Good heat resistance
Low calorie, sweetness and hygroscopicity
Lactulose is a pure disaccharide molecule that is easy to detect when added to the pro…
This medication can be used to avoid or treat low bloodstream calcium levels in people who do not obtain enough calcium using their diet plans. It may be used to treat conditions brought on by low cal…
Congestion and upset stomach may possibly occur. If any regarding these effects persist or perhaps worsen, tell your doctor or perhaps pharmacist promptly.
If your current doctor has directed an indi…
Calcium carbonate or CaCO3 accounts for more than 4% of the earth's crust and is spread all over the world. The most common natural forms are chalk, limestone and marble, which are produced by the dep…
Use of Calcarea Carbonica, Calcium Carbonate: In a case taken as a single remedy, one of the most helpful is usually to responsible, steady individuals who become fatigued and overwhelmed. They may de…