Pharmacological Group and Basic Logic
The drug Almagelum (Almagate + magnesium oxide) belongs to the broad pharmacological group of agents affecting digestive functions. In modern gastroenterology, one of the key tasks is protecting the gastric mucosa from the aggressive action of gastric juice, primarily hydrochloric acid (HCl). Various strategies are used to achieve this, including film-forming agents and antacids.
The pharmacological logic behind combination drugs like Almagelum is built on the synergy of two active ingredients. A similar approach is seen in other combinations designed to reduce ulcerogenicity (for example, adding magnesium hydroxide to acetylsalicylic acid for gastric protection). With almagate and magnesium, we achieve a dual strike against aggressive factors: chemical neutralization and physical protection.
Mechanism of Action of the Magnesium Component
The magnesium portion of the drug is responsible for the rapid alleviation of acid aggression. The main pharmacological effect of magnesium compounds in the gastric lumen is their antacid action. This consists of the direct chemical neutralization of secreted hydrochloric acid (HCl). By reacting with the acid, magnesium reduces the overall acidity of gastric juice.
The consequence of this process is a sharp decrease in the damaging effect of acid on the gastric mucosa. This is critically important for preventing the formation of ulcers and erosions, as well as for creating conditions in which existing mucosal defects can begin to heal. Reducing ulcerogenicity is the primary goal of using magnesium-containing antacids.
Mechanism of Action of the Aluminum Component (Almagrate/Algedrate)
Algedrate is an aluminum hydroxide. To understand how it works, it is useful to recall the mechanism of action of classic film-forming agents (such as sucralfate, which is the basic aluminum salt of sulfated sucrose).
Aluminum-containing compounds possess a unique capacity for physical tissue protection. Upon entering the acidic environment of the stomach and contacting the proteins of the damaged mucosa (in areas of erosions or ulcers), aluminum hydroxide forms a dense protective layer (paste). This paste literally "plugs" mucosal defects, isolating them from the further corrosive action of hydrochloric acid. Thus, while magnesium reduces the overall aggressiveness of the environment, aluminum builds a mechanical barrier over the most vulnerable areas.
Comparative Characteristics and Indications
The term ulcerogenicity refers to the capacity to cause damage and ulceration of the mucous membrane. Many factors possess a high ulcerogenic potential. Indications for use logically stem from the mechanism of action: these are conditions where it is necessary to urgently neutralize excess HCl and protect the damaged mucosa.
Why does pharmacology so frequently use this specific combination of aluminum and magnesium salts? Test questions frequently feature single-ingredient preparations: calcium carbonate, aluminum hydroxide, magnesium hydroxide, magnesium sulfate, tripotassium dicitrato bismuthate, or magnesium alginate. Using only aluminum provides an excellent film-forming effect, but acid neutralization proceeds slowly. Using only magnesium provides rapid HCl neutralization, but does not provide adequate physical protection of defects. Combining almagate and magnesium in a single bottle solves both problems simultaneously.
Dosage Form and Prescription Rules
According to prescription reference guides, the drug is available as an oral suspension in 170–200 mL bottles. The choice of a liquid dosage form is not accidental. Unlike solid tablets, a suspension has the maximum contact surface area with the gastric mucosa. It evenly coats the walls of the organ, which is critically important for the full manifestation of both antacid and film-forming effects.
The drug is prescribed orally at 5–10 mL per dose. For medical students, it is important to know how to correctly write a prescription for this form. Because the drug is produced under a commercial name in a ready-made liquid form, we prescribe it by indicating the form, the name in quotation marks, and the total bottle volume.
Example prescription for Almagelum: ```latin Rp.: Suspensionis "Almagelum" 170 ml D.S. Take orally 5–10 ml. ``` Pharmacological commentary on the prescription: In the signature, we indicate the route of administration (orally) and the single dose. The patient should be instructed to shake the bottle before use to ensure an even distribution of the hydroxide particles.