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Minoxidil Capsule (Each)
Minoxidil Tablet (Each) †
† commercial product
Minoxidil Capsules are an oral medication primarily used to treat hair loss and, in some cases, high blood pressure. Originally developed as a vasodilator to relax blood vessels, it later gained recognition for its ability to promote hair growth in individuals with androgenetic alopecia or other hair thinning conditions. The capsules are prescribed when topical formulations are insufficient or when systemic treatment is necessary. It is important to follow a healthcare provider’s guidance when using this medication to ensure safe and effective results.
Minoxidil works by widening blood vessels, improving circulation to hair follicles and other tissues. This enhanced blood flow provides essential nutrients and oxygen, supporting hair growth and follicle health. In addition, it prolongs the anagen (growth) phase of the hair cycle, helping dormant follicles to reactivate. While the exact mechanism for hair stimulation is still under investigation, its effects on vascular relaxation and follicular nourishment are believed to be the primary contributors to its benefits.
Minoxidil Capsules should not be used by individuals with a history of heart disease, severe kidney impairment, or hypersensitivity to the medication. It is not suitable for people with uncontrolled high blood pressure or heart rhythm disorders unless closely monitored by a physician. Caution is required for patients taking other medications that affect cardiovascular health. Before starting therapy, it is essential to inform your healthcare provider of existing medical conditions and any concurrent treatments.
This medication may interact with antihypertensive drugs, diuretics, and other medications that influence heart rate or blood pressure. Combining it with stimulants, thyroid treatments, or hormone therapies may increase the risk of side effects such as dizziness or fluid retention. Always disclose all medications, supplements, and herbal products to your healthcare provider to ensure compatibility and avoid adverse interactions.
Common side effects include headaches, dizziness, swelling in the hands or feet, and a rapid heartbeat. Some individuals may experience nausea, fatigue, or flushing. Less frequently, serious effects like chest pain, difficulty breathing, or severe allergic reactions may occur. Hair growth in unintended areas, such as the face or body, is also possible. Any unusual or persistent symptoms should be reported immediately, and treatment adjustments may be necessary to ensure safety.
The safety of Minoxidil Capsules during pregnancy or breastfeeding has not been fully established. Due to the potential effects on blood pressure and the developing fetus, it is generally not recommended for use in pregnant women unless clearly justified by a healthcare provider. Similarly, breastfeeding mothers should consult their doctor before using the medication, as it may pass into breast milk and affect the infant’s health.
Store this medication at 68°F to 77°F (20°C to 25°C) and away from heat, moisture and light. Keep all medicine out of the reach of children. Throw away any unused medicine after the beyond-use date. Do not flush unused medications or pour down a sink or drain.
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- Olsen EA, Dunlap FE, Funicella T, et al. A randomized clinical trial of 5% topical minoxidil versus 2% topical minoxidil and placebo in the treatment of androgenetic alopecia in men. J Am Acad Dermatol 2002;47:377-85.
- Olsen EA, Whiting D, Bergfeld W, et al. A multicenter, randomized, placebo-controlled, double-blind clinical trial of a novel formulation of 5% minoxidil topical foam versus placebo in the treatment of androgenetic alopecia in men. J Am Acad Dermatol 2007;57(5):767-74. Epub 2007 Aug 29
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- Minoxidil tablets package insert. Corona, CA: Watson Laboratories, Inc; 2009 Jun.
- American Academy of Pediatrics (AAP) Committee on Drugs. Transfer of drugs and other chemicals into human milk. Pediatrics 2001;108(3):776-789.
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- Badri T, Nessel TA, Kumar D D. Minoxidil. [Updated 2021 Dec 19]. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2022 Jan-. Available from: https://www.ncbi.nlm.nih.gov/books/NBK482378/
