Side Effects: What They Are and Why They Matter

Every medicine or supplement can cause side effects. Some are mild, like a sleepy feeling, while others can be serious. Knowing what to expect helps you act fast and stay safe. Below you’ll find the most common side effects for the drugs we cover and easy steps to manage them.

Common drug side effects you should know

Haldol (haloperidol) – Often used for psychosis, Haldol can cause stiffness, tremor, or restlessness. In rare cases you might feel very sleepy or notice a fast heartbeat. If these happen, talk to a pharmacist or doctor right away.

Inderal (propranolol) – This beta‑blocker lowers blood pressure but can also cause fatigue, cold hands, or low sex drive. A sudden drop in blood pressure may make you dizzy when you stand up. Keep a log of how you feel and share it with your prescriber.

Depakote (divalproex sodium) – Used for seizures and mood swings, Depakote may give you nausea, weight gain, or shaky hands. Watch for unusual bruising or yellowish skin, as these could signal a liver issue.

Rosuvastatin (Crestor) – A cholesterol‑lowering pill that can cause muscle aches, mild stomach pain, or headache. If muscle pain gets strong or lasts more than a few days, stop the drug and call your doctor.

Sunflower oil supplements – Though natural, high doses of sunflower oil can lead to digestive upset or an oily rash. Balance it with other fats and don’t exceed the recommended serving.

These examples are not exhaustive. Each product listed on our site has a detailed side‑effect guide you can read for free.

How to handle side effects safely

First, read the label or patient information leaflet. It tells you which side effects are common and which need urgent care. If you notice a new symptom, write down when it started, how long it lasts, and how severe it feels.

Second, don’t stop a prescription on your own. Some drugs need a slow taper to avoid withdrawal. Call the pharmacy or clinic, explain the problem, and ask for a plan.

Third, consider lifestyle tweaks. Drinking more water can lessen a headache from NSAIDs. Eating protein with a statin can reduce muscle aches. Light exercise often improves fatigue from beta‑blockers.

Fourth, use over‑the‑counter help only if it’s approved. For example, an antacid can ease stomach upset from certain antibiotics, but the wrong antacid may reduce the drug’s effect.

If a side effect feels serious – like trouble breathing, swelling of the face, or a rash that spreads – treat it as an emergency. Call emergency services or go to the nearest hospital.

Finally, keep a medication list. Write down every pill, supplement, and herb you take. Share the list with any new doctor to avoid dangerous interactions.

Side effects are part of using medication, but they don’t have to be a mystery. By staying alert, asking questions, and following safe steps, you can protect your health while getting the benefits of the treatments you need.