Speak to your doctor or pharmacist before the first capsule if any of the following is true for you. None of it means Horse Honey is unsafe for everyone; it means these are the situations where a supplement should be checked against your own health first.
You take nitrates or blood-pressure medicine. Nitroglycerin and other nitrates are used for chest pain, and many men take tablets that lower blood pressure. In its notices on sexual-enhancement products, the FDA warns that the hidden erectile-dysfunction drug ingredients it found in some of them can interact with nitrates and drop blood pressure to dangerous levels (FDA notice). Horse Honey’s label lists no drug ingredient, but a doctor should still weigh the full panel against your prescriptions. MedlinePlus explains high blood pressure and its treatment.
You have a heart condition. If you have heart disease, have had a heart attack, or have been told to avoid strenuous activity, ask your doctor before starting a product sold for stamina and performance (MedlinePlus on heart diseases).
Your erection problems are new. Recent erection trouble can be an early warning of heart or blood-vessel disease, and it can also follow from diabetes, high blood pressure, certain medicines or hormone problems (NIDDK; MedlinePlus). Horse Honey is not a treatment for erectile dysfunction, and a doctor’s visit should come before any supplement.
You have diabetes or high blood sugar. The product is named after honey, but the label lists neither honey nor sugar. Diabetes matters here for another reason: it is one of the common causes of erection and bladder problems in men (NIDDK). If you have diabetes or prediabetes, talk to the doctor who manages it before adding a supplement, and keep your usual testing routine (MedlinePlus on diabetes).
You take prostate or hormone medicine. Saw palmetto and nettle root are prostate ingredients, and tongkat ali and orchic substance are marketed around hormones. With finasteride, dutasteride or any hormone therapy, ask first (NCCIH on saw palmetto).
The bottle adds its own caution: pregnant or nursing mothers, children under 18 and individuals with a known medical condition should consult a physician before using this or any dietary supplement. And the NIH’s standing advice applies to every supplement: tell your doctor about all of them (NIH Office of Dietary Supplements).