One cannot be taught these things without the concomitant use of responsibility.

Its role as a single agent without the concomitant use of other antihypertensives is not yet clear.

Concomitant use of other central nervous system depressants increases this risk.

Attention should be paid to concomitant use with tranquilizers, antidepressants or excess alcohol.

Concomitant use of these substances should be avoided.

Therefore, the concomitant use of both disease modifiers in patients with rheumatoid arthritis can be regarded as safe.

Nephrotoxicity exacerbated with concomitant use of other nephrotoxic drugs; avoid when possible.

Patients should be cautioned against concomitant use of antacids and phenytoin.

Factors that increase the risk of toxicity include advancing age, cardiac status, and concomitant use of other drugs.

The concomitant use of leucovorin is not recommended.