Author: Andrew Parker, MD

Dr. Andrew Parker is a board-certified internal medicine physician with over 10 years of clinical experience. He earned his medical degree from the University of California, San Francisco (UCSF), and has worked at leading hospitals including St. Mary’s Medical Center. Dr. Parker specializes in patient education and digital health communication. He now focuses on creating clear, accessible, and evidence-based medical content for the public.

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Comprehensive Guide to Dorzolamide: Uses, Dosage, Side Effects, and More What is Dorzolamide? Dorzolamide is a topical carbonic anhydrase inhibitor that reduces intraocular pressure (IOP) by decreasing aqueous humor production in the eye. This medication is primarily used to treat glaucoma and ocular hypertension, offering a non-invasive option for managing eye pressure. Overview of Dorzolamide Generic Name: Dorzolamide Brand Name: Trusopt Drug Group: Carbonic anhydrase inhibitor (ophthalmic) Commonly Used For Treat open-angle glaucoma. Manage ocular hypertension. Reduce intraocular pressure. Key Characteristics Form: Ophthalmic solution (2% drops) (detailed in Dosage section). Mechanism: Inhibits carbonic anhydrase II in the ciliary process, reducing…

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Comprehensive Guide to Dronedarone: Uses, Dosage, Side Effects, and More What is Dronedarone? Dronedarone is a multichannel blocker with antiarrhythmic properties, used to maintain normal sinus rhythm in patients with atrial fibrillation (AF) or atrial flutter (AFL). This medication helps control heart rate and rhythm, reducing the risk of cardiovascular events in specific patient populations. Overview of Dronedarone Generic Name: Dronedarone Brand Name: Multaq Drug Group: Class III antiarrhythmic agent Commonly Used For Maintain sinus rhythm in atrial fibrillation (AF). Control atrial flutter (AFL). Reduce cardiovascular hospitalization risk. Key Characteristics Form: Oral tablets (400 mg) (detailed in Dosage section). Mechanism:…

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Comprehensive Guide to Duloxetine: Uses, Dosage, Side Effects, and More What is Duloxetine? Duloxetine is a serotonin-norepinephrine reuptake inhibitor (SNRI) that balances neurotransmitters in the brain, alleviating symptoms of depression, anxiety, and chronic pain. This medication is widely used to treat major depressive disorder (MDD), generalized anxiety disorder (GAD), and neuropathic pain, offering mental health and pain management benefits. Overview of Duloxetine Generic Name: Duloxetine Brand Name: Cymbalta, Yentreve Drug Group: Serotonin-norepinephrine reuptake inhibitor (SNRI) Commonly Used For Treat major depressive disorder (MDD). Manage generalized anxiety disorder (GAD). Relieve chronic pain conditions. Key Characteristics Form: Oral delayed-release capsules (20 mg,…

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Comprehensive Guide to Duvelisib: Uses, Dosage, Side Effects, and More What is Duvelisib? Duvelisib is a dual inhibitor of phosphoinositide 3-kinase (PI3K) delta and gamma isoforms, used to treat certain types of blood cancers by disrupting the growth and survival of malignant cells. This medication is primarily indicated for relapsed or refractory chronic lymphocytic leukemia (CLL) and follicular lymphoma (FL), offering targeted cancer therapy. Overview of Duvelisib Generic Name: Duvelisib Brand Name: Copiktra Drug Group: Phosphoinositide 3-kinase (PI3K) inhibitor Commonly Used For Treat chronic lymphocytic leukemia (CLL). Manage follicular lymphoma (FL). Control relapsed or refractory lymphoid malignancies. Key Characteristics Form:…

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Comprehensive Guide to Dabigatran: Uses, Dosage, Side Effects, and More What is Dabigatran? Dabigatran is a direct oral anticoagulant (DOAC) that inhibits thrombin, preventing blood clot formation. This medication is widely used to reduce the risk of stroke and systemic embolism in patients with atrial fibrillation, as well as for treating deep vein thrombosis (DVT) and pulmonary embolism (PE). Overview of Dabigatran Generic Name: Dabigatran Brand Name: Pradaxa Drug Group: Direct thrombin inhibitor, oral anticoagulant Commonly Used For Prevent stroke in atrial fibrillation. Treat deep vein thrombosis (DVT). Manage pulmonary embolism (PE). Key Characteristics Form: Oral capsules (75 mg, 110…

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Comprehensive Guide to Ceftriaxone: Uses, Dosage, Side Effects, and More What is Ceftriaxone? Ceftriaxone is a third-generation cephalosporin antibiotic that inhibits bacterial cell wall synthesis, effective against a broad range of Gram-positive and Gram-negative bacteria. This medication is widely used to treat serious bacterial infections, including pneumonia and meningitis. Overview of Ceftriaxone Generic Name: Ceftriaxone Brand Name: Rocephin Drug Group: Third-generation cephalosporin antibiotic Commonly Used For Treat bacterial infections. Manage meningitis. Prevent surgical site infections. Key Characteristics Form: Intravenous (IV) or intramuscular (IM) injection (250 mg, 500 mg, 1 g, 2 g vials) (detailed in Dosage section). Mechanism: Inhibits peptidoglycan…

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Comprehensive Guide to Carvedilol: Uses, Dosage, Side Effects, and More What is Carvedilol? Carvedilol is a non-selective beta-blocker with alpha-1 blocking properties that lowers blood pressure, reduces heart rate, and improves heart function. This medication is commonly used to treat hypertension, heart failure, and post-myocardial infarction conditions, offering cardiovascular benefits. Overview of Carvedilol Generic Name: Carvedilol Brand Name: Coreg Drug Group: Non-selective beta-blocker, alpha-1 blocker Commonly Used For Treat high blood pressure. Manage heart failure. Prevent complications after a heart attack. Key Characteristics Form: Oral tablets (3.125 mg, 6.25 mg, 12.5 mg, 25 mg), extended-release capsules (10 mg, 20 mg,…

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Comprehensive Guide to Carbamazepine: Uses, Dosage, Side Effects, and More What is Carbamazepine? Carbamazepine is an anticonvulsant and mood-stabilizing medication that reduces excessive nerve activity by blocking sodium channels. This medication is primarily used to treat epilepsy, bipolar disorder, and neuropathic pain, offering control over seizures and mood swings. Overview of Carbamazepine Generic Name: Carbamazepine Brand Name: Tegretol, Carbatrol Drug Group: Anticonvulsant, mood stabilizer Commonly Used For Control epileptic seizures. Manage bipolar disorder. Treat neuropathic pain. Key Characteristics Form: Oral tablets (200 mg), chewable tablets (100 mg), extended-release capsules (100 mg, 200 mg, 300 mg), oral suspension (100 mg/5 mL)…

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Comprehensive Guide to Captopril: Uses, Dosage, Side Effects, and More What is Captopril? Captopril is an angiotensin-converting enzyme (ACE) inhibitor that lowers blood pressure and reduces strain on the heart by blocking the conversion of angiotensin I to angiotensin II. This medication is widely used to treat hypertension, heart failure, and post-myocardial infarction conditions, offering cardiovascular protection. Overview of Captopril Generic Name: Captopril Brand Name: Capoten Drug Group: Angiotensin-converting enzyme (ACE) inhibitor Commonly Used For Treat high blood pressure. Manage heart failure. Prevent complications after a heart attack. Key Characteristics Form: Oral tablets (12.5 mg, 25 mg, 50 mg, 100…

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Comprehensive Guide to Chlorpheniramine: Uses, Dosage, Side Effects, and More What is Chlorpheniramine? Chlorpheniramine is a first-generation antihistamine that blocks H1 receptors to alleviate allergy symptoms such as sneezing, itching, and runny nose. This medication is commonly used for allergic rhinitis and other allergic conditions, though it is known for causing more sedation compared to second-generation antihistamines. Overview of Chlorpheniramine Generic Name: Chlorpheniramine Brand Name: Chlor-Trimeton, Aller-Chlor Drug Group: Antihistamine (first-generation) Commonly Used For Relieve allergy symptoms. Manage common cold symptoms. Treat mild allergic reactions. Key Characteristics Form: Oral tablets (4 mg), oral syrup (2 mg/5 mL), extended-release tablets (8…

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