Nine compounds derivated from 2-mercaptobezothiazole were synthesized. Their structure have been identified by MS-, IR-, and UV- spectroscopy. Antimicrobial activities of some compounds have been tested. Hydrazide BT6 and substituted hydrazides BT7, BT8, BT9 were found to have significant inhibitory activity on P. aeruginosa, S. aureus, Asp. niger and F. oxysporum at concentration 50mcg/ml.
Pharmaceutical Preparations

Realtime xCELLigence analysis (RTCA) is a new cell detection technology to continuously monitor, record and analyze a variety of information generated by cell activity. In drug research, it plays an important role in assessing myocardial toxicity and cell biological activity. Here, we first introduce the underlying mechanisms and characteristics of RTCA. Then we review the applications of RTCA in the research of myocardial toxicity and cell biological activity, to provides the fundamental baseline for understanding and exploiting RTCA. With the real-time, unlabeled, non-invasive, high throughput, and high accuracy features, RTCA not only promotes drug research and development, but also has a broad and good application prospect in other fields.
Pharmaceutical Preparations

According to the results of an investigation on 270 households in May 1999 carried out in Tien Son district, Bac Ninh province, 56 (20.79%) purchasing households came to commune health centre, 195 (72.22%) came to private clinic, 8 (2.96%) came to public pharmacy and 11 (4.03%) came to private pharmacy. Quality of the drug, easiness to access, reasonable price, good counseling... are the favorable factors to promote the purchaser's choice
Pharmaceutical Preparations ; Pharmaceutical Services

After The 6th Party Congress, Vietnam pharmaceutical industry prospered, especially in 1990s. Pharmaceutical industry was rising; drug market in Vietnam became eventful and plentiful, responded more and more effectively for the healthcare needs of people. The author mentioned situations of pharmaceutical production and trade in Vietnam during 1996-2002 period: kinds of pharmaceutical companies, situation of drug use, situation of production and trade of Vietnamese pharmaceutical companies and ensuring drug quality
Drug Industry ; Pharmaceutical Preparations

Researching synthetic method of Dehydropregnenolon acetat (DPA, 3β-acetoxy-pregn-5, 16-dien-20-on) from 3β- acetoxy-pregn-5-en 17β-ol-20-yn, a conclusion is given that using this method dicobalt hexacarbonyl was created in the first time in group acethylen, 3β- acetoxy-pregn-5-en 17β-ol-20-yn is synthesized with good output from equivalent 17β- hydroxy derivative. Respond not attach generates auxiliary products like known methods. Through two methods hydrating and hydrating in gentle conditions, dehydro pregnenolon acetat is synthesized with quite good output from 3β- acetoxy-pregn-5-en 17β-ol-20-yn. Intermediary compounds and final products characterized by melt point, infared spectrum, proton magnetic spectrum and weight spectrum
Pregnenolone ; Pharmaceutical Preparations

Comparative bioavailability study of rifampicin from 2-FDC and 3- FDC with standard separate tablets at the same dose level was conducted in 12 healthy volunteers. The study was designed as a cross-over experiment with a washout period of 1 week. Bioavailability of rifampicin was estimated by plasma concentration of rifampicin from Oh to 24h after dosed. Plasma rifampicin concentration was determined by HPLC method. The results revealed that: Cmax and AVC for rifampicin in 2-FDC and 3FDC formulation were lower (but Tmax were higher) than the standard separate formulations. It was concluded that FDC tablets are of poor relative bioavailabity of rifampicin. The implication for National Tuberculosis Programme is extremely serious and warrants urgent attention
Tuberculosis ; Pharmaceutical Preparations ; Therapeutics

The analgesic efficacy of Morphin sulfate capsule 30mg manufactured domestically was evaluated in 59 cancer patients. Time of action onset after the first 30mg dose was 15-60 minutes (35-45 min in 70.6% patients) and the analgesic effect lasted from 2.5 to 12 hrs (4-5 hrs in 59.3% patients), depending on patients' pain score prior to administration of drug. Generally, 77.9%, 11.9% and 10.2% patients acquired good, moderate and poor results from analgesic treatment, respectively
Analgesics ; Pharmaceutical Preparations ; Morphine

A randomized study was carried out on 90 patients from 16 to 65 age old were surgically operated lower extremities at Anesthesia Department of Viettiep Hospital from February 2004 to February 2005. The patients were divided into 2 groups: ASA I and ASA II. Results: after 30 initial minute of anesthesia, the pulse frequency decreased in 40/45 patients of group I (88.89%), in 44/45 (97.78%) patients of group II. There wasn’t any case in two groups had the pulse less than 60 times/minute. There were 42/45 patients (93.33%) in group I and 45/45 patients (100%) in group II had a decrease of artery pressure during 30 minute of anesthesia. Respiratory frequency pre and post anesthesia in two group were different not significantly (p>0.05). There was no case of respiratory failure required interventions. Pre- post anesthesia, SpO2 in group I and group II changed not significantly (p>0.05). The side effects during surgery: nausea, vomit, tremble and shiver; after surgery: headache, urine retention. The position of patients was used in order to distribute much more on onside had excellent effect for lower extremities surgery. Levels of sensory and motor block were very good without significant side effect
Anesthesia, Spinal ; Pharmaceutical Preparations

Sustained release dosage forms belong to new forms with innovative bioavailability, in which drug was released in tailored design. If physicians haven't a firm grasp on nature, composition of dosage form and give incorrect instruction for use, model of release dosage of drug will be changed, and drug is not only less effective but also harmful. Author introduced technical rules of preparing sustained release drugs, sustained release dosage forms and pathways of administration
Pharmaceutical Preparations ; Dosage Forms

to build formula of captopril sustained release matrix tablets with EC and HPMC, survey the affects of formulation components and optimization of formula by using D- Optimal. Subject: captopril, EC, HPMC, lactose, and starch. Method: prepare tablet, assess the quality of captopril sustained release matrix tablets. Conclusions: From the experiment design, captopril sustained release oral tablets with half life of 12h can be prepared, and by optimized method, the proper formula was found. To produce captopril tablets, it's necessary to further study in large scale, to perform test of bio-equivalence and stability of tablet
Captopril ; Tablets ; Pharmaceutical Preparations