Common symptoms include: 1  Pain in your neck. 2  Headaches. 3  Pain in your shoulder, arm, or hand.  Reduced range of motion in your 1  neck. Numbness, weakness, and slower reflexes in your arms, hands,legs, or feet.  Problems walking including a spastic 1  gait. Muscle weakness in your  legs.
Efavirenz can cause side effects such as mood or behavior changes. These symptoms may improve the longer you take the medication. Taking efavirenz at bedtime may also lessen these effects. Contact your doctor if you have more serious symptoms such as severe depression or thoughts of hurting yourself.isit your doctor regularly. This medication can cause you to have a false positive drug-screening test. If you provide a urine sample for drug-screening, tell the laboratory staff that you are taking efavirenz. Store at room temperature away from moisture and heat.
If you're not sure if your morning after pill package is complete, contact your pharmacist for advice specific to your situation. one, just follow the instructions, Take 1 1.50 MCG or 2 .75 MCG. 2 if that is how many there is in the package or 1 if it is plan b onestep. You only take one dose, be that the one- or two- pill dose, as soon as possible after unprotected sex. The number of times you had sex doesn't affect how many pills you take. If you're not sure how many pills should be in the brand of the morning after pill that you have, contact your health care provider or pharmacist for advice specific to your situation.