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Endocrine 3
| Pharmacological Category | Generic | Brand | Classification | Common Indication | Key side effects | US Boxed Warning | Other notes |
|---|---|---|---|---|---|---|---|
| Androgen | testosterone gel (topical) | AndroGel, Fortesta, Vogelxo | CS-III | Male hypogonadism | contact dermatitis, acne, increased prostate specific antigen (PSA), emotional lability, hypertension | secondary exposure may result in virilization (especially in children) | CI in males with breast or prostate cancer and pregnant women; apply in the morning |
| Bisphosphonate | alendronate (PO) | Fosamax | n/a | Osteoporosis | dyspepsia, gastroesophageal reflux disease, hypocalcemia, atypical fractures, osteonecrosis of the jaw | n/a | CI in patients with hypocalcemia or abnormalities of the esophagus; administer ≥30 minutes before food or drink (except plain water); remain upright for 30 minutes following dose to reduce esophageal irritation |
| Vitamin D analog | cholecalciferol (vitamin D3) (PO) | n/a | OTC | Dietary supplement, osteoporosis prevention | vitamin D toxicity (nausea, vomiting, loss of appetite, constipation, confusion, weakness) | n/a | CI with hypercalcemia |
| Phosphodiesterase-5 enzyme (PDE5) inhibitor | sildenafil (PO) | Viagra, Revatio | n/a | ED, PAH | priapism, headache, flushing, visual disturbance, dyspepsia, back pain (mostly with tadalafil), hearing or vision loss (rare) | n/a | CI with concomitant use of nitrates (may cause severe hypotension) |
| Phosphodiesterase-5 enzyme (PDE5) inhibitor | tadalafil (PO) | Cialis, Adcirca | n/a | ED, BPH, PAH | priapism, headache, flushing, visual disturbance, dyspepsia, back pain (mostly with tadalafil), hearing or vision loss (rare) | n/a | CI with concomitant use of nitrates (may cause severe hypotension) |
| Thyroid product | levothyroxine (PO, IV) | Synthroid, Levoxyl, Unithroid | n/a | Hypothyroidism | weight loss, palpitations, diarrhea, insomnia, heat intolerance | not intended for use for weight loss | narrow therapeutic index drug (therapeutic monitoring is recommended); not all generic products are therapeutically equivalent |
| Thyroid product | thyroid, desiccated (PO) | Armour Thyroid | n/a | Hypothyroidism | weight loss, palpitations, diarrhea, insomnia, heat intolerance | not intended for use for weight loss | narrow therapeutic index drug (therapeutic monitoring is recommended); not all generic products are therapeutically equivalent |
| CNS stimulant, anorexiant | phentermine (PO) | Adipex-P | CS-IV | Obesity | tachycardia, hypertension, nausea, dizziness, xerostomia, agitation | n/a | only approved for short-term use; CI in those with a history of cardiovascular disease or drug abuse, pregnancy, hyperthyroidism, or within 14 days of MAOI therapy |