12 Muscle Twitching Causes You Should Know (Common Triggers)

Medications

Some medications are used to treat conditions and diseases in the body. Medications tamper with the body’s chemical balances to fight infections. They may neutralize, increase, or decrease the body’s chemicals and hormones. However, these medications may lead to complications like muscle twitching if taken excessively.

For instance, corticosteroids are drugs used to reduce inflammation and subdue the immune system. It is used to treat allergic rhinitis, asthma, and hay fever. However, corticosteroids cause ion change, leading to imbalances in the body’s electrolytes. As the body loses its homeostasis, the muscles fluctuate and twitch.

Antidepressants and anti-anxiety drugs also cause muscle twitching. They often help people with mental health disorders function daily. Their effects on the body vary; some may see changes instantly, while others have to wait months to see results. Like these effects, some side effects may or may not manifest immediately. One of these side effects is muscle twitching or fasciculation. All antidepressants can cause muscle twitching in the body. 

Diuretics or water pills are drugs used to treat heart diseases such as high blood pressure. Side effects of this drug include frequent urination. This reduces the potassium level in the body, which leads to muscle twitching.