Could arthritis meds make someone spastic?

The symptoms of Parkinson's disease can vary from person to person. Early signs may be subtle and can go unnoticed. Symptoms typically begin on one side of the body and usually remain worse on that side even after symptoms begin to affect both sides. Parkinson's signs and symptoms may include:

Tremor. The characteristic shaking associated with Parkinson's disease often begins in a hand. A back-and-forth rubbing of your thumb and forefinger, known as pill-rolling, is common, and may occur when your hand is at rest. However, not everyone experiences tremors.

Slowed motion (bradykinesia). Over time, Parkinson's disease may reduce your ability to initiate voluntary movement. This may make even the simplest tasks difficult and time-consuming. When you walk, your steps may become short and shuffling. Or your feet may freeze to the floor, making it hard to take the first step.

Rigid muscles. Muscle stiffness can occur in any part of your body. Sometimes the stiffness can be so severe that it limits the range of your movements and causes pain. People may first notice this sign when you no longer swing your arms when you're walking.
Impaired posture and balance. Your posture may become stooped as a result of Parkinson's disease. Balance problems also may occur, although this is usually in the later stages of the disease.

Loss of automatic movements. Blinking, smiling and swinging your arms when you walk are all unconscious acts that are a normal part of being human. In Parkinson's disease, these acts tend to be diminished and even lost. Some people may develop a fixed staring expression and unblinking eyes. Others may no longer gesture or seem animated when they speak.

Speech changes. Many people with Parkinson's disease have problems with speech. You may speak more softly, rapidly or in a monotone, sometimes slurring or repeating words, or hesitating before speaking.

Dementia. In the later stages of Parkinson's disease, some people develop problems with memory and mental clarity. Alzheimer's drugs appear to alleviate some of these symptoms to a mild degree.

When to see a doctor
See your doctor if you have any of the symptoms associated with Parkinson's disease — not only to diagnose the illness but also to rule out other causes for your symptoms.

honestly I felt like kind of a jerk by making excuses for Mo to not get in a car with him driving but it was a totally "better safe than sorry" moment.