Drug Any substance or product used or indented to be used to modify or explore physiological system or pathological state for the benefit of the recipient
benefits includes the diagnosis, the prevention, the control, or the cure of disease.
Tablets
Solid preparations each containing a single dose of one or more active substances and usually obtained by compressing uniform volumes of particles. Tablets are intended for oral administration. Some are swallowed whole, some after being chewed, some are dissolved or dispersed in water before being administered and some are retained in the mouth where the active substance is liberated.
The particles consist of one or more active substances with or without excipients such as diluent, binders, disintegrating agents, glidants, lubricants, substances capable of modifying the behavior of the preparation in the digestive tract, coloring matter authorized by the competent authority and flavoring substances.
Tablets are usually right, circular solid cylinder, the end surfaces of which are flat or convex and the edges of which may be beveled. they may have lines or break-marks and may bear a symbol or other markings. Tablets may be coated.
several categories of tablets for oral use may be distinguished
- uncoated tablets
- coated tablets.
- effervescent tablets
- soluble tablets
- disperable tablets
- orodispersible tablets
- gastro-resistant tablets
- modified-release tablets
Drugs used in Dyspepsia and Ulcerative Disease in GIT
(a) Neutralization - Antacids
(b) Inhibition of secretion
Antacids
1. Mg(OH)2
2. Al(OH)3
3. NaHCO3
But now most of the drugs are come with combination of Al and Mg to get good reaction and reduce side effect. e.g. Digine, Gaviscon, Gelusil, etc.