• Digoxin (Lanoxin) interacts with Hawthorn
  

  Digoxin (Lanoxin) helps the heart beat more strongly. Hawthorn also seems to affect the heart. Taking hawthorn along with digoxin (Lanoxin) might increase the effects of digoxin and increase the risk of side effects. Do not take hawthorn if you are taking digoxin (Lanoxin) without talking to your healthcare professional.

• Medications that increase blood flow to the heart (Nitrates) interacts with Hawthorn
  

  Hawthorn increases blood flow. Taking hawthorn with medications that also increase blood flow to the heart might increase the chance of dizziness and lightheadedness.
  Some of these medications that increase blood flow to the heart include nitroglycerin (Nitro-Bid, Nitro-Dur, Nitrostat) and isosorbide (Imdur, Isordil, Sorbitrate).

• Medications for high blood pressure (Beta-blockers) interacts with Hawthorn
  

  Hawthorn might decrease blood pressure. Taking hawthorn along with medication for high blood pressure might cause your blood pressure to go too low.
  Some medications for high blood pressure include atenolol (Tenormin), metoprolol (Lopressor, Toprol XL), nadolol (Corgard), propranolol (Inderal), and others.

• Medications for high blood pressure (Calcium channel blockers) interacts with Hawthorn
  

  Hawthorn might decrease blood pressure. Taking hawthorn along with medication for high blood pressure might cause your blood pressure to go too low.
  Some medications for high blood pressure include nifedipine (Adalat, Procardia), verapamil (Calan, Isoptin, Verelan), diltiazem (Cardizem), isradipine (DynaCirc), felodipine (Plendil), amlodipine (Norvasc), and others.

• Medications for male sexual dysfunction (Phosphodiesterase-5 Inhibitors) interacts with Hawthorn
  

  Hawthorn might decrease blood pressure. Some medications for male sexual dysfunction can also decrease blood pressure. Taking hawthorn along with medications for male sexual dysfunction might cause your blood pressure to go too low.
  Some medications for male sexual dysfunction include sildenafil (Viagra), tadalafil (Cialis), and vardenafil (Levitra).

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