Comprehensive Guide to Digestive, Respiratory, Analgesic, and Anti-Infective Pharmacology

Pharmacology of the Digestive Line

The digestive pharmacological line encompasses various therapeutic categories including antacids, anti-flatulents, anti-reflux medications, anti-ulcer drugs, anti-diarrheals, probiotics, rehydration salts, laxatives, antispasmodics, anti-emetics, digestive enzymes, and hepatoprotectors.

Antacids, anti-flatulents, and anti-reflux agents are indicated for the treatment of acidity by neutralizing excess gastric acid in the stomach. They also treat gas and abdominal distension. Specific active principles include Magaldrato combined with Simeticona, which is found under the brands Digeril, Antiax, and Acitip. The combination of Alginato de sodio and Bicarbonato de sodio is available as Maxiol and Milpax. For a more comprehensive treatment, the four-part combination of Magaldrato, Simeticona, Alginato de sodio, and Bicarbonato de sodio is marketed as Digeril reflux and Gastrofast.

Anti-ulcer medications are primarily categorized into proton pump inhibitors and gastric protectors. Proton pump inhibitors used for gastric ulcers include Omeprazol (marketed as Omezol and Estomacol) and Esomeprazol (marketed as Esoz, Bipetol, and Esomax). Gastric protectors include principles like Bismuto (available as Peptocid and Bismutol) and Sucralfato (available as Dip and Gastril). Misoprostol is also utilized but is strictly dispensed only under the retention of a medical prescription; its brand example is Cytotec.

Antidiarrheal treatments utilize principles such as Diosmectita (marketed as Smecta and Fulrest) and Racecadotrilo (marketed as Secohidrat and Hidrasec). To restore gut health, flora regenerators or probiotics are employed, with trade names including Enterogermina, Enteroaris, BeralClaussi Plus, Deoflora, Floratil, Lactéol Fort, Multiflora, and Bago vital digest. Hydration treatment involves rehydration salts such as Hidraplus, Hidrity, Pedialyte, and Oralyte.

Laxatives are indicated for the treatment of constipation. Active principles include Picosulfato de sodio (marketed as Dulcolax and Normolax gotas). A triple combination of Picosultato de sodio, Óxido de Magnesio, and Ácido Cítrico is available as Travad Pik. Natural options include Sen Extract (Ciruelax and Raserlax). Other osmotic or lubricant options include Polietilenglicol, known as PEG, Neolax, and Contumax, and Lactulosa, found in Duphalac and Rebland.

Antispasmodics treat spasms at the stomach level and often combine an antispasmodic with an analgesic. Examples include Butilbromuro de Hioscina plus Paracetamol (Buscapina dúo), Butilbromuro de Hioscina plus Ibuprofeno (Paracolib), and the combination of Propinox plus Clonixinato de lisina (marketed as Sertal compuesto and Mopinal).

Antiemetics are used for the treatment of nausea and vomiting. Principles include Dimenhidrinato (Anautin, Mareol, Pasedol) and Metoclopramida (Metoclox, Clodopan). Metoclopramida is also combined with Simeticona for brands like Clodopan Gas and SigesGas Plus. Other antiemetics include Ondansetrón (Vonau flash, Modifical) and Clorofenotiazinilscopina (6 - Copin).

Digestive enzymes are indicated for the treatment of indigestion, with Pancreatina (Creon) being a primary principle, sometimes combined with Simeticona as in Digestotal Forte. Hepatoprotectors serve as complementary treatments for liver diseases. Formulations include Silimarina plus Coenzima Q$_{10}$ (Kufer Q Forte) and a complex of Silimarina, Coenzima Q$_{10}$, and Vitamin B Complex (found in Hepalive forte, Bismutol Hepat, and Hepabionta plus). Other hepatoprotective principles include Soy Phospholipids (Essentiale) and Difenil Dimetil Dicarboxilato (Bídica).

Pharmacology of the Respiratory Line

The respiratory pharmacological line is designed to treat dry cough, cough with phlegm, throat irritation, allergies, flu symptoms, and nasal congestion.

Antitussives for the treatment of dry cough include combinations like Codeína plus Pseudoefedrina plus Clorfeniramina, which are available solely under medical prescription as Tussigen and Flemex. Another common combination is Dextrometorfano plus Guaifenesina, found as Tussolvina, Notusin, and Welplex. For the treatment of cough with phlegm, expectorants and mucolytics are used, including Ambroxol (Muxol, Mucosolvan, Mintamox), Bromhexina (Broncotosil, Bisolvon, Tusmucol), and Acetilcisteína (Fluimucil, Muflox, Neumoflux). Natural options include Hedera Helix (Muxelix, Abrilar) and the combination of Hedera Helix plus Pelargonium sinoides (AirImune, Biotos Inmune).

Buccopharyngeal antiseptics treat throat irritation, pain, hoarseness, aphonia, or difficulty swallowing. Formulations include Extracto de erísimo plus matricaria (Activox), Bencidamina (Bencialiv), and the triple combination of Clorhexidina plus Lidocaína plus Tirotricina (Oracol fresh). Other options include Iceland Moss Extract (Islamint), a mix of Ginger, Eucalyptol, Menthol, and Camphor (Gloranta), and combinations of Benzocaína plus Cetilpiridinio (Oralsept, Noraver chewable tablets). Phenol is available as Noraver spray bucal, and Rhubarb Extract plus Salicylic Acid is used in Oralsone Topic. Propolis and Echinacea are also used in spray form.

Antiallergics used for allergy treatment include Loratadina (Clarityne, Alergit), Desloratadina (Desloran), Fexofenadina (Fexofen, Allegra, Alerfast), Cetirizina (Alercet, Alerpax), and Levocetirizina (Degraler plus, Levocet, LevoFlash).

Flu treatments provide symptomatic relief for influenza. Combinations include Paracetamol, Pseudoefedrina, and Clorfeniramina (found in Trioval Día y Noche and Nastizol Compositum), or Paracetamol, Pseudoefedrina, and Cetirizina (Flukit sachets). More complex flu formulas include Paracetamol, Dextrometorfano, Fenilefrina, and Clorfeniramina (Singripal F, Lemonflu F) or Paracetamol, Fenilefrina, and Cetirizina (Fluritox F).

Nasal decongestants are used to treat nasal congestion and include Oximetazolina (Afrin), Nafazolina (Rinhaf), and saline solutions or sea water. Fisiol UB is a physiological serum available in isotonic or hypertonic forms, and Marimer is a sea water solution also available as isotonic or hypertonic.

Pharmacology of the Analgesic Line

The analgesic line covers opioid analgesics, antipyretics, non-steroidal anti-inflammatory drugs (NSAIDs), muscle relaxants, and anti-migraine medications.

Opioid analgesics are indicated for the treatment of chronic pain and require a medical prescription. These include Tramadol (Tramal), Tramadol combined with Paracetamol (Zaldiar), and Tramadol combined with Ketorolaco (Altrom Advance). For simple pain and fever, antipyretic analgesics like Paracetamol, also known as Acetaminofén, are widely used under brands like Analgan Rapid, Normotemp, Elbrus, Umbral, and Tempra.

NSAIDs are used to treat pain, fever, and inflammation. Principles include Ibuprofeno (Sindlor, Buprex flash, Femen forte, Dolorgesic), Naproxeno (Quitadol, Apronax), and Naproxeno combined with Paracetamol (Finalín Muscular). Diclofenaco is another common NSAID, marketed as Voltaren, Berifen, and Cataflam.

Muscle relaxants address muscle tension and pain. Combinations include Clorzoxazona plus Paracetamol (Tensiflex), Clorzoxazona plus Ibuprofeno (Buprex relax), and Tiocolchicósido (Tensorelax forte, Tiocolsid, Conrelax). Advanced muscle relaxant combinations include Tiocolchicósido plus Ibuprofeno (TioRelax) and Tiocolchicósido plus Diclofenaco Potásico (Conrelax plus).

Anti-migraine medications specifically target migraines. Active combinations include Paracetamol plus Cafeína (Finalin forte), Ibuprofeno plus Ergotamina plus Cafeína (Migraflash, Buprex migra), and Clonixinato de lisina plus Ergotamina (Migradorixina). Heavy-duty migraine relief is provided by Acetaminofen plus Cafeína plus Dihidroergotamina, available as Migrax and Cabedol.

Pharmacology of the Anti-infective Line

The anti-infective line is divided into antibiotics, antivirals, antifungals, and antiparasitics.

Antibiotics treat bacterial infections. Active principles include Nitrofurantoína (Uvamin), the combination of Sulfametoxazol and Trimetoprima (Bactrim), and Amoxicilina (Amoval), which is also combined with Acido clavulánico (Curam). Other antibiotics include Azitromicina (Trex), Tobramicina (Tobrex), Amikacina (Akim), and Ciprofloxacina (Cipran). For topical use, Silver Sulfadiazine is found in Platsiderm and Silvadin.

Antivirals treat viral infections and include Aciclovir (Eurovir, Poviral), Valaciclovir (Valtrex), and Oseltamivir (Inmunopul).

Antifungals treat fungal infections. Ketoconazol is used in Medicasp, Ketocon, and Salish K. Terbinafina is found in Terfin, Lamisil, and Terbifung. Bifonazol is available as Unesia and Bifuzol. A complex topical antifungal, Canesforte Plus, combines Bifonazol, Lidocaína, Crotamitón, Ácido beta-glicirretínico, and Mentol. Clotrimazol is found in Gyno canesten, Lomecan, and Candistat 1, while Fluconazol is available as Tavor.

Antiparasitics treat parasitic infections. Principles include Albendazol (Fagol), Flubendazol (Fugos), Ivermectina (Ivermin), Secnidazol (Bianos), Metronidazol (Etron), and Ornidazol (Invigan). Combination treatments include Albendazol plus Secnidazol (Pazidol 1 - 2). Nitazoxanide is available under the brands Nitoxadin, Colufase, and Tazonid.