Which medications in the drug class Agents for Erectile Dysfunction are used in the treatment of Multiple System Atrophy?

Updated: Oct 17, 2018
  • Author: André Diedrich, MD, PhD; Chief Editor: Selim R Benbadis, MD  more...
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Answer

Agents for Erectile Dysfunction

MSA may respond to yohimbine with BP elevation, but male erectile dysfunction only occasionally improves. Yohimbine (Yohimex, Yocon) should be given at a dose of 5.4 mg 3 times a day for the purposes of blood pressure elevation. Yohimbine has a very limited ability to improve erectile dysfunction in MSA and can dangerously elevate blood pressure when given with acetylcholinesterase inhibitors such as pyridostigmine. If adverse effects are a problem, the dose can be reduced to half a tablet 3 times a day and gradually increased to 1 tablet 3 times a day. The effect of sildenafil (Viagra) has not been determined in patients with autonomic failure. Other approaches include the use of mechanical devices, pumps, penile prostheses, or implants.

Yohimbine (Yohimex)

Yohimbine blockades alpha2 receptors in the pontomedullary region of the CNS, increasing sympathetic outflow.


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