Common Side Effects
Hypertrichosis (Body Hair Growth) — Very Common
This affects most users to some degree. Hair grows on arms, face, back, and other areas. It's the most noticeable side effect.
The upside: Many guys enjoy the beard gains. It's also proof the medication is working systemically. If it bothers you, grooming manages it.
Fluid Retention — Less Common
Some users notice mild swelling (edema), particularly in ankles. Usually minimal at low doses used for hair loss.
Dizziness/Lightheadedness — Uncommon
Minoxidil was originally a blood pressure medication. At low doses for hair, this is rare, but some people notice it initially.
Cardiovascular Considerations
At high doses (10-40mg, used for blood pressure), minoxidil can affect heart function. At low doses for hair loss (1-5mg), serious cardiovascular effects are rare.
Tell your provider if you have: Heart disease, heart failure, or are on blood pressure medications. They'll determine if oral minoxidil is appropriate for you.
Is It Worth the Side Effects?
For most healthy men, the main "side effect" is extra body hair. If you can live with that (or enjoy it), oral minoxidil offers superior hair regrowth results compared to topical.
The medication has been used for decades. At low doses for hair, it has a strong safety profile when prescribed appropriately.
Talk to a Provider
Discuss your health history with a provider to determine if oral minoxidil is right for you.
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