Drug information at RXlist.com

While doing my on-line Introduction to Pharmacy Technician course, I found some useful websites, like rxlist.com. It lets you look up many things about drugs, like side effect warnings:

Kenalog-40 Injection Consumer (continued)

[...] Tell your doctor immediately if any of these unlikely but serious side effects occur: bone pain, easy bruising/bleeding, black stools, vomit that looks like coffee grounds, severe stomach/abdominal pain, increased thirst/urination, fast/pounding/irregular heartbeat, shortness of breath, swelling of the ankles/feet, persistent weight gain, puffy face, unusual hair growth, thinning skin, slow wound healing, signs of infection (e.g., persistent fever/cough/sore throat, painful urination, eye pain/discharge), muscle weakness/pain, mental/mood changes (e.g., mood swings, depression, agitation), vision changes, seizures, unusual skin growths.

If you have received injection of this medication into the joint, temporary discomfort of the joint may occur. Tell your doctor immediately if you have fever, increased/severe pain with swelling of the joint, weakness in the joint, or decreased range of motion in the joint.

[...]

This medication may make you dizzy. Do not drive, use machinery, or do any activity that requires alertness until you are sure you can perform such activities safely.

This medication may mask signs of infection or put you at greater risk of developing very serious infections. Report any injuries or signs of infection (e.g., persistent sore throat/cough/fever, pain during urination, muscle aches) that occur while using this medication or within 12 months after stopping it.

Using corticosteroid medications for a long time can make it more difficult for your body to respond to physical stress. Therefore, before having surgery or emergency treatment, or if you get a serious illness/injury, tell your doctor or dentist that you are using this medication or have used this medication within the past 12 months. Tell your doctor right away if you develop unusual/extreme tiredness or weight loss. If you will be using this medication for a long time, carry a warning card or medical ID bracelet that identifies your use of this medication.

Do not have immunizations, vaccinations, or skin tests while you are using this drug unless specifically directed by your doctor. Avoid contact with people who have recently received oral polio vaccine.

Avoid exposure to chickenpox or measles infection while using this medication. If you are exposed to these infections, seek immediate medical attention.

If you have a history of ulcers or take large doses of aspirin or other arthritis medication, limit alcoholic beverages while using this drug. Alcohol may increase the risk of stomach/intestinal bleeding.[...]

That's just a sample. The information seems very complete.