Skin Tags: What Labs to Get and Clinical Next Steps
Skin tags (acrochordons) can signal insulin resistance, prediabetes, or metabolic syndrome. Learn which labs to request, what results mean, and when to see a specialist.
Sleep Apnea Symptoms: What Could Be Causing Them and What to Do Next
A clinical breakdown of the causes behind sleep apnea symptoms, from obstructive airway collapse to central neurological signaling failures, with diagnosis paths and evidence-based treatments.
Sleep Apnea Symptoms: Drugs That Cause or Treat It
A guide to medications that worsen or improve sleep apnea symptoms, including GLP-1 agonists, solriamfetol, opioids, and benzodiazepines, with trial data and dosing details.
Slow Heartbeat: Labs, Diagnosis, and Next Steps
A clinical guide to bradycardia evaluation, including which labs to order, how slow heartbeat is diagnosed, common causes, and when treatment like a pacemaker is needed.
Slow Wound Healing: When to See a Doctor
Learn the causes of slow wound healing, how it is diagnosed, and when delayed wound repair signals a condition that needs medical attention.
Slowed Thinking: What Could Be Causing It and When to Seek Help
A differential guide to slowed thinking (bradyphrenia), covering thyroid dysfunction, depression, sleep disorders, medications, neurodegenerative disease, and metabolic causes with diagnosis and treatment pathways.
Slowed Thinking: Drugs That Cause or Treat It
A guide to medications that can cause cognitive slowing and drugs used to treat bradyphrenia, with dosing details, trial data, and when to seek help.
Snoring: What Could Be Causing It and When to See a Doctor
A clinical guide to the causes of snoring, from nasal obstruction and obesity to obstructive sleep apnea. Includes diagnostic workup, treatments, and when snoring signals a serious condition.
Social Withdrawal: When to See a Doctor
Learn the causes of social withdrawal, how it is diagnosed, and when pulling away from others signals something that needs medical attention.
Somogyi Effect: Labs, Diagnosis, and Next Steps
Learn how the Somogyi effect causes rebound morning hyperglycemia, which labs confirm it, and what clinical next steps your provider will recommend.
Stretch Marks Fading: What Could Be Causing It
Why your stretch marks are fading, from natural collagen remodeling and hormonal shifts to topical retinoids and procedural treatments. Evidence-based causes prepared by the HealthRX.com Editorial Team.
Stretch Marks Fading: Drugs That Cause or Treat It
Which medications cause stretch marks and which help them fade? A guide to tretinoin, corticosteroids, hyaluronic acid, and other drugs linked to striae formation and treatment.
Stretch Marks Fading: When to See a Doctor
Stretch marks naturally fade from red or purple to white over time. Learn when fading stretch marks are normal, when they signal an underlying condition, and what treatments dermatologists recommend.
Subclinical Hypothyroidism Symptoms: What Could Be Causing Them
Understand what causes subclinical hypothyroidism symptoms, how the condition is diagnosed, when treatment is warranted, and which underlying factors drive elevated TSH with normal free T4.
Subclinical Hypothyroidism Symptoms, Labs, and Next Steps
What an elevated TSH with normal free T4 means, which labs confirm subclinical hypothyroidism, when treatment is generally recommended, and what monitoring looks like if it is not.
Sugar Cravings: Labs, Causes, and Next Steps
Persistent sugar cravings can signal blood sugar dysregulation, nutrient deficiencies, or hormonal imbalance. Learn which labs to request, what causes sugar cravings, and evidence-based next steps.
What Drugs Make You Crave Sugar? Causes & Fixes
Steroids, olanzapine, clozapine and mirtazapine can trigger sugar cravings; semaglutide, naltrexone and topiramate may reduce them, per clinical data.
Sulfur Burps: Labs, Diagnosis, and Next Steps
A clinical guide to sulfur burps covering causes, diagnostic labs, breath tests, H. pylori screening, SIBO evaluation, and evidence-based treatment options.
Excessive Sweating: What Could Be Causing It?
A clinical breakdown of the causes behind excessive sweating, from primary hyperhidrosis to thyroid disease, medications, and infections, with diagnostic criteria and treatment options.
Excessive Sweating: Drugs That Cause It and Medications That Treat It
A guide to drug-induced hyperhidrosis and FDA-approved treatments for excessive sweating, including anticholinergics, oxybutynin, glycopyrrolate, and botulinum toxin.
Excessive Sweating: When to See a Doctor
Learn when excessive sweating (hyperhidrosis) signals a medical problem, what causes it, how doctors diagnose it, and which treatments actually work.
Sweating Reduced: Drugs That Cause or Treat It
A clinical guide to hypohidrosis and anhidrosis, including which medications reduce sweating, underlying causes, diagnostic workup, and evidence-based treatment options.
Tendinitis: Drugs That Cause or Treat It
A guide to medications linked to tendinitis and the drugs used to treat it, including fluoroquinolones, statins, NSAIDs, and corticosteroid injections.
Tension Headache: What Could Be Causing It
A clinical guide to the causes, diagnosis, and treatment of tension-type headache, including when symptoms point to something more serious.
Tension Headache: Labs, Diagnosis, and Next Steps
Learn which lab tests and evaluations matter for tension headaches, when imaging is needed, red-flag symptoms that change the workup, and evidence-based treatments.
Spironolactone and Testicular Atrophy in Men: What Studies Show
Spironolactone can suppress the HPG axis and shrink testes; volume often recovers within 6-12 months after stopping. See thresholds and comparisons to other drugs.
Throat Fullness: Drugs That Cause or Treat It
A clinical guide to medications linked to throat fullness (globus sensation), including PPIs, SSRIs, GLP-1 agonists, ACE inhibitors, and evidence-based treatments.
Thyrotoxicosis Symptoms: Drugs That Cause or Treat It
A clinical guide to the medications linked to thyrotoxicosis and the drugs used to treat it, including antithyroid agents, beta-blockers, and iodine-based therapies.
Tinnitus Labs and Next Steps: What to Test and When to Act
A guide to the lab work, imaging, and specialist referrals you need after tinnitus onset, plus evidence-based treatment options.
Best Drugs for Tinnitus, Plus Ones That Cause It
No drug is FDA-approved for tinnitus, but off-label options like tricyclics, gabapentin, and CBT can ease symptoms. See which drugs worsen it too.
Trouble Falling Asleep: Drugs That Cause or Treat It
A clinical guide to medications that cause sleep-onset insomnia and prescription treatments that reduce time to fall asleep, with doses, trial data, and tapering advice.
Fever Drug List - Causes and Treatments for Unknown Fever
Drug-induced fever causes 3-5% of unexplained fever cases. See culprit drug classes like antibiotics and allopurinol, plus antipyretics used to treat it.
Unexplained Fever in Adults: When to Worry
Fever at or above 101°F for more than a few days, plus night sweats or weight loss, means it's time to see a doctor. Learn the red flags and causes.
Unintended Weight Changes: What Could Be Causing It
A clinical guide to the differential diagnosis of unintended weight changes, covering thyroid disorders, diabetes, malignancy, medication effects, and when to seek evaluation.
Urinary Urgency: Causes, Tests, and Red Flags
Urinary urgency usually signals overactive bladder, UTI, or enlarged prostate. See how urinalysis and post-void residual testing pinpoint the cause.
Vomiting: What Could Be Causing It
A clinical guide to the most common and serious causes of vomiting, how physicians diagnose the underlying trigger, and when to seek emergency care.
Vomiting: Labs, Diagnosis, and Next Steps
A clinical guide to the laboratory workup, diagnostic evaluation, and evidence-based next steps for persistent or unexplained vomiting in adults.
Medicine Causing Vomiting: Which Drugs and Why
Opioids, chemo agents, SSRIs and antibiotics can trigger vomiting. See which drugs cause it and which antiemetics, like ondansetron, treat it.
Vomiting: When to See a Doctor and What Causes It
Learn what causes vomiting, how it is diagnosed, effective treatments, and the specific warning signs that mean you should see a doctor right away.
Weak Urine Stream: When to See a Doctor and What It Could Mean
A weak urinary stream can signal BPH, urethral stricture, or neurogenic bladder. Learn the red flags, diagnostic workup, and treatment options that warrant medical evaluation.
Drugs That Cause or Treat Weight Gain
A clinical guide to medications linked to weight gain and FDA-approved pharmacotherapies for weight management, including GLP-1 receptor agonists, antipsychotics, corticosteroids, and more.
Unexplained Weight Loss: When to See a Doctor
Losing 5% or more of body weight unintentionally in 6-12 months warrants evaluation. See thresholds, causes and the tests doctors run first.
White Spots on Nails: What Could Be Causing Them
Board-reviewed guide to leukonychia (white spots on nails) covering the 8 most common causes, how doctors diagnose them, when they signal systemic disease, and what treatments actually work.
White Spots on Nails: When to See a Doctor
White spots on nails (leukonychia) are usually harmless, but certain patterns signal systemic disease. Learn what causes them, when to worry, and how they are diagnosed and treated.
Yellow Eyes: Labs Your Doctor Will Order and What to Do Next
Yellow eyes (scleral icterus) signal elevated bilirubin. Learn which blood tests, imaging studies, and specialist referrals you need, plus when yellowing demands emergency care.
Yellow Skin but Not Jaundice? Causes Explained
Yellow skin without eye yellowing often means carotenoid pseudojaundice, not liver disease. True jaundice needs bilirubin above 2.5 mg/dL and affects the eyes first.
Tadalafil (Generic) Adolescent Dosing: What Clinicians and Parents Should Know
Tadalafil is not FDA-approved for erectile dysfunction or BPH in patients aged 12-17. This article reviews the limited evidence, off-label considerations, and the one pediatric indication where tadalafil data does exist.
Tadalafil (Generic) Safety in Adolescents Aged 12-17
Evidence-based review of tadalafil (generic) safety considerations for adolescents aged 12-17, including off-label use, pharmacokinetics, monitoring protocols, and clinical guidance.
Tadalafil (Generic) Geriatric Dosing: Safe Use in Adults 65 and Older
Evidence-based guide to tadalafil dosing in older adults (65+), covering starting doses, renal adjustments, drug interactions, fall risk, and BPH considerations.
Tadalafil (Generic) Off-Label Uses with Evidence Levels
A guide to tadalafil's off-label applications beyond ED and BPH, graded by clinical evidence from RCTs, meta-analyses, and guideline endorsements.
Tadalafil (Generic) Dosing for Older Adults (50 to 64): Evidence-Based Guide
How to dose generic tadalafil for adults aged 50 to 64, including daily vs. on-demand protocols, drug interactions, cardiovascular screening, and BPH overlap.
Tadalafil Patent History and Generic Timeline: How Cialis Lost Exclusivity
A clinical deep-dive into tadalafil's patent expiration, Paragraph IV challenges, and the generic timeline from 2017 onward, with FDA and trial-cited evidence.
Tadalafil (Generic) Pediatric Safety: What Clinicians and Parents Need to Know About Use Under Age 12
An evidence-based review of tadalafil (generic) safety in pediatric patients under 12, covering FDA labeling, the STARTS trials, off-label risks, weight-based dosing considerations, and monitoring protocols.
Tadalafil (Generic) Pharmacogenomics & Genetic Variability
How CYP3A4, CYP3A5, and PDE5A polymorphisms influence tadalafil metabolism, efficacy, and side-effect risk. Evidence-based guidance for clinicians considering pharmacogenomic testing.
Tadalafil (Generic) Pregnancy and Lactation Safety
Is tadalafil safe during pregnancy or breastfeeding? Review FDA labeling, animal reproductive data, human evidence, and clinical guidance for tadalafil in reproductive contexts.
Tadalafil (Generic) Real-World Evidence: Registry Data, Observational Studies, and Post-Market Outcomes
A clinical review of real-world evidence for generic tadalafil 2.5-20 mg across erectile dysfunction and BPH, including registry studies, claims analyses, and post-market safety data.
Tadalafil (Generic) Dosing in Renal Impairment
Evidence-based guide to tadalafil dose adjustments in kidney disease, covering mild, moderate, and severe renal impairment plus dialysis patients, with FDA label data and primary-source citations.
Tadalafil (Generic) Safety Signals and FDA Actions
FDA labeling lists organic nitrates as an absolute contraindication with tadalafil; nitrates must be deferred at least 48 hours after a tadalafil dose.
Does UnitedHealthcare Cover Tadalafil (Generic)?
UnitedHealthcare typically covers generic tadalafil on Tier 3 with prior authorization. Learn formulary placement, PA criteria, step therapy rules, appeal steps, and cost-saving strategies.
Tadalafil (Generic) Safety for Young Adults (18 to 29): What the Evidence Shows
A clinical review of tadalafil generic safety in men aged 18 to 29, covering dosing, side effects, cardiovascular risk, fertility, and long-term use considerations.