Drug Interactions With Minoxidil
Combining certain medications with minoxidil may result in negative reactions. Even though minoxidil is applied topically to the scalp, sometimes enough of the medication can reach the bloodstream to interfere with other drugs. Interactions with minoxidil may occur with blood pressure medications, prostacyclin analogs, and certain topical products, to name a few.
An Overview of Minoxidil InteractionsMinoxidil (Rogaine®) is an over-the-counter (OTC) medication used to treat male and female pattern baldness. It may potentially interact with several other medications.
(This article applies only to minoxidil formulations that are applied on the scalp. An oral form of minoxidil is available by prescription and is used to treat severe hypertension. Oral minoxidil should not be used to treat hair loss, as it can cause serious side effects. Click Loniten for more information.)
Minoxidil is applied directly on the scalp. Although very little of the medication is expected to be absorbed into the bloodstream after normal use, in some cases (such as if the medication is applied to an inflamed or irritated scalp), enough of the medication may be absorbed to cause drug interactions. Additionally, minoxidil should not be used with other medications that are applied on the scalp.
Some of the drugs that may lead to minoxidil interactions include but are not limited to:
- Amifostine (Ethyol®)
- Blood pressure medications
- Cyclosporine (Gengraf®, Neoral®, Sandimmune®)
- Diazoxide (Proglycem®)
- Guanethidine (Ismelin®)
- Phosphodiesterase type 5 inhibitors (PDE5 inhibitors), such as:
- Prostacyclin analogs, such as:
- Epoprostenol (Flolan®, Veletri®)
- Iloprost (Ventavis®)
- Treprostinil (Remodulin®, Tyvaso®)
- Corticosteroid creams and ointments, such as hydrocortisone (Cortaid®, Cortizone®, and several other products) or triamcinolone (Triderm® and several other products)
- Petrolatum or petroleum jelly (Vaseline®)
- Retinoid creams or gels, such as bexarotene (Targretin®) and tretinoin (Atralin™, Avita®, Renova®, Retin-A®, Tretin-X™).